{"id":3238,"date":"2026-08-04T18:51:49","date_gmt":"2026-08-04T16:51:49","guid":{"rendered":"https:\/\/protheseorthopedie.com\/?p=3238"},"modified":"2026-09-10T17:49:56","modified_gmt":"2026-09-10T15:49:56","slug":"total-knee-replacement","status":"publish","type":"post","link":"https:\/\/protheseorthopedie.com\/en\/prothese-totale-genou\/","title":{"rendered":"Total knee replacement: a complete guide, rehabilitation and results"},"content":{"rendered":"<p class=\"wp-block-paragraph\">Advanced osteoarthritis of the knee causes chronic pain and a progressive loss of independence. When conventional medical treatments are no longer sufficient to relieve the joint, the implantation of a&nbsp;<strong>total knee replacement<\/strong>&nbsp;constitutes the gold standard surgical solution. Also called&nbsp;<strong>total knee arthroplasty<\/strong>, This procedure involves replacing the worn joint surfaces of the femur, tibia and sometimes the patella with prosthetic implants designed to restore joint function.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">This surgery aims to eliminate pain, restore satisfactory mobility, and enable a lasting return to daily activities. This practical guide covers the entire care pathway: the reasons for the procedure, the surgical process, pain management, the rehabilitation protocol, and expected long-term results.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Why have a total knee replacement?<\/h2>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"572\" src=\"https:\/\/protheseorthopedie.com\/wp-content\/uploads\/2026\/08\/consultation-prothese-complete-genou-1024x572.webp\" alt=\"Orthopedic surgeon showing a model of a total knee replacement and X-rays to his patient during a consultation\" class=\"wp-image-3239\" srcset=\"https:\/\/protheseorthopedie.com\/wp-content\/uploads\/2026\/08\/consultation-prothese-complete-genou-1024x572.webp 1024w, https:\/\/protheseorthopedie.com\/wp-content\/uploads\/2026\/08\/consultation-prothese-complete-genou-300x168.webp 300w, https:\/\/protheseorthopedie.com\/wp-content\/uploads\/2026\/08\/consultation-prothese-complete-genou-768x429.webp 768w, https:\/\/protheseorthopedie.com\/wp-content\/uploads\/2026\/08\/consultation-prothese-complete-genou-18x10.webp 18w, https:\/\/protheseorthopedie.com\/wp-content\/uploads\/2026\/08\/consultation-prothese-complete-genou.webp 1200w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\">The surgeon presents the prosthesis model and the pre- and post-operative X-rays to his patient to explain the procedure.<\/figcaption><\/figure>\n<\/div>\n\n\n<p class=\"wp-block-paragraph\">The indication for knee replacement surgery is based on a combination of clinical and radiological findings. It is necessary when the joint is so damaged that simple everyday movements, such as walking, climbing stairs, or getting up from a chair, become very painful and limiting.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Osteoarthritis of the knee (gonarthrosis) and irreversible cartilage wear<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">The primary reason for total knee replacement remains gonarthrosis, a degenerative disease characterized by the progressive destruction of articular cartilage. This smooth tissue covers the bone ends of the femur, tibia, and patella, ensuring smooth, frictionless movement.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Due to aging, axial deformities of the lower limbs (genu varum in parentheses or genu valgum in X), genetic factors or old traumas (fractures, lesions of the menisci or ligaments), the cartilage thins and then disappears.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Once destroyed, cartilage does not regenerate. The bone is left exposed, causing direct friction that leads to pain, recurring joint swelling (synovial effusion), and knee stiffness. Other conditions, such as rheumatoid arthritis, inflammatory rheumatism, or necrosis of a femoral condyle, can also destroy the joint and require intervention.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">The failure of conservative medical treatments (painkillers, injections)<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Prosthesis implantation is never proposed as a first-line treatment. Management always begins with conservative medical treatments aimed at relieving symptoms:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Hygiene and dietary measures<\/strong>&nbsp;: weight loss in case of overload to alleviate mechanical stress, adaptation of activities.<\/li>\n\n\n\n<li><strong>The drugs<\/strong>&nbsp;: analgesics and non-steroidal anti-inflammatory drugs to manage painful flare-ups.<\/li>\n\n\n\n<li><strong>Physiotherapy<\/strong>&nbsp;: strengthening of the quadriceps muscle and flexibility exercises to maintain joint function.<\/li>\n\n\n\n<li><strong>The infiltrations<\/strong>&nbsp;: intra-articular injections of corticosteroids to calm inflammation or of hyaluronic acid (viscosupplementation) to improve gliding.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">When these treatments are no longer sufficient, when infiltrations no longer provide lasting relief and when walking distance collapses, the surgical option becomes the appropriate solution.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">The goals of prosthetic surgery regarding pain and autonomy<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">The decision to operate is made in consultation between the patient and the orthopedic surgeon. The determining factor remains the impact of joint wear and tear on daily quality of life.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The objective of a&nbsp;<strong>total knee arthroplasty<\/strong>&nbsp;is threefold:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Eliminate mechanical pain of joint origin.<\/li>\n\n\n\n<li>Correct leg axis deformities and restore mobility.<\/li>\n\n\n\n<li>To restore to the patient lasting functional autonomy for travel and leisure activities.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">What are the different types of knee prostheses?<\/h2>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"572\" src=\"https:\/\/protheseorthopedie.com\/wp-content\/uploads\/2026\/06\/prothese-du-genou-nouvelle-generation-1024x572.webp\" alt=\"3D illustration of a total knee prosthesis showing the metal femoral and tibial components connected by a polyethylene insert\" class=\"wp-image-3225\" srcset=\"https:\/\/protheseorthopedie.com\/wp-content\/uploads\/2026\/06\/prothese-du-genou-nouvelle-generation-1024x572.webp 1024w, https:\/\/protheseorthopedie.com\/wp-content\/uploads\/2026\/06\/prothese-du-genou-nouvelle-generation-300x167.webp 300w, https:\/\/protheseorthopedie.com\/wp-content\/uploads\/2026\/06\/prothese-du-genou-nouvelle-generation-768x429.webp 768w, https:\/\/protheseorthopedie.com\/wp-content\/uploads\/2026\/06\/prothese-du-genou-nouvelle-generation-18x10.webp 18w, https:\/\/protheseorthopedie.com\/wp-content\/uploads\/2026\/06\/prothese-du-genou-nouvelle-generation.webp 1376w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\">Diagram of a new generation total knee prosthesis: the femoral and tibial components made of metal alloy articulate around a polyethylene insert that replaces the worn cartilage.<\/figcaption><\/figure>\n<\/div>\n\n\n<p class=\"wp-block-paragraph\">There is no single implant model, but a full range of devices adapted to the morphology, degree of bone wear and condition of each patient&#039;s ligaments.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Total prosthesis vs. partial (unicompartmental) prosthesis<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">The knee has three joint compartments: the medial femorotibial joint line, the lateral femorotibial joint line, and the patellofemoral joint.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Partial prosthesis (or unicompartmental prosthesis \u2013 UCP)<\/strong>&nbsp;This procedure is suitable for cases where osteoarthritis is strictly localized to a single compartment (most often the inner one). It preserves the cartilage and ligaments of the rest of the knee. To learn more about this conservative alternative, consult our guide on... <a href=\"https:\/\/protheseorthopedie.com\/en\/knee-operation\/partial-knee-replacement\/\">Principles and indications for partial knee replacement.<\/a><\/li>\n\n\n\n<li><strong>Total knee replacement (TKR)<\/strong>&nbsp;It is indicated when wear affects several compartments or when the joint is generally degraded.&nbsp;<strong>complete knee prosthesis<\/strong>&nbsp;replaces all sliding surfaces.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">First-line implants (cruciate ligament preservation or postero-stabilized)<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">During a first procedure, the surgeon&#039;s choice generally falls on two types of sliding total prostheses:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Posterior cruciate ligament (PCL) preservation prostheses<\/strong>&nbsp;: the posterior cruciate ligament is preserved if it is in good condition, which allows for the maintenance of biomechanics very close to the original joint.<\/li>\n\n\n\n<li><strong>Posterior-stabilized prostheses (PS)<\/strong>&nbsp;: if the posterior cruciate ligament is worn or removed, the front-to-back stability of the knee is ensured by a mechanical device integrated into the implant (a polyethylene block that articulates with the femoral component).<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Revision prostheses and hinged prostheses<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">In specific or complex clinical situations, specific implants are required:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Revision prostheses<\/strong>\u00a0They are used to replace a worn, loose or infected prosthesis. They have intramedullary stems that anchor deeper into the bone and metal wedges to compensate for any bone loss.<\/li>\n\n\n\n<li><strong>Hinged prostheses<\/strong>&nbsp;These are the most constrained implants. The femur and tibia are connected by a central mechanical hinge. This option is reserved for major ligament failures or complex bone reconstructions.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">How is a total knee replacement operation performed?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Surgical intervention is a perfectly codified procedure that is part of a personalized care pathway. It combines rigorous preparation, mastered surgical technique, and the use of precision technologies.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Preoperative preparation: infection assessment, hygiene and imaging<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Before the procedure, a complete assessment is carried out to ensure the safety of the surgical operation:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>The search for infectious foci<\/strong>\u00a0A dental check-up is prescribed. Any active infection must be treated before surgery to prevent bacteria from migrating to the implant.<\/li>\n\n\n\n<li><strong>The imaging assessment<\/strong>&nbsp;Specific X-rays measuring the limb axes (goniometry) and sometimes a CT scan or MRI allow planning of the size and exact positioning of the components.<\/li>\n\n\n\n<li><strong>Health guidelines<\/strong>&nbsp;Smoking cessation is essential at least one month prior to the operation to ensure proper healing. An antiseptic shower the evening before and the morning of the procedure is mandatory.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">The methods of anesthesia and the surgical technique<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">The operation lasts on average between 1 and 1.5 hours. The length of hospital stay generally varies from 2 to 4 days.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The procedure is performed under general or spinal anesthesia (only the lower body is numbed). The anesthesiologist determines the appropriate option during the pre-operative consultation. Regional nerve blocks and local analgesic injections are administered to manage pain immediately after surgery.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Technically, the surgeon makes a vertical incision on the front of the knee. After temporarily repositioning the kneecap, they remove the worn cartilage and a thin layer of diseased bone from the femur and tibia. The bone ends are then precisely prepared using cutting guides to receive the prosthesis.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Technical innovations: computer assistance, robotics and anchoring<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Knee replacement surgery incorporates modern precision tools:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Computer-assisted surgery (navigation)<\/strong>&nbsp;: optical sensors analyze the geometry of the knee in real time to guide the surgeon in aligning bone cuts.<\/li>\n\n\n\n<li><strong>Surgical robotics<\/strong>\u00a0Robotic assistance allows for the execution of cuts based on a 3D model of the patient&#039;s joint. Discover the benefits of this technique. <a href=\"https:\/\/protheseorthopedie.com\/en\/knee-operation\/robotic-assisted-knee-replacement\/\">robotic knee replacement<\/a> on the precision of the surgical procedure.<\/li>\n\n\n\n<li><strong>The method of attachment<\/strong>&nbsp;Implants are generally fixed with acrylic surgical cement (often containing a preventative antibiotic). In some cases, cementless fixation is possible: the porous surface of the prosthesis then allows the bone to grow directly in contact with the metal.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Composition of materials and weight of a total knee prosthesis<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">A total knee replacement consists of three major components:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>The femoral component<\/strong>&nbsp;made of a metallic alloy (cobalt-chromium or titanium) that covers the end of the femur.<\/li>\n\n\n\n<li><strong>The tibial base<\/strong>&nbsp;metallic to which a polyethylene insert (a high-density polymer serving as a sliding surface) is attached.<\/li>\n\n\n\n<li><strong>The patellar component<\/strong>&nbsp;(optional) polyethylene for surfacing the kneecap.<\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">A\u00a0<strong>A total knee replacement weighs on average between 300 and 500 grams<\/strong>. This weight depends on the size of the implant and the alloys used. After the healing period and the return of muscle strength, the patient does not experience any particular feeling of heaviness in the operated limb.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">How long does the pain last after a knee replacement?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Postoperative pain management is a top priority in the care pathway. Although total knee replacement remains a major procedure, modern pain management has improved considerably, allowing for a high level of comfort from the very first hours.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">The evolution of postoperative pain from the acute phase to the first 3 months<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">The intensity and duration of pain vary from individual to individual, but the progression follows a predictable schedule:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>The first few days (Day 1 to Day 5)<\/strong>&nbsp;This is the acute inflammatory phase. The pain is most pronounced, but it is controlled in the clinic or hospital thanks to multimodal analgesia protocols (infiltrations, nerve blocks and analgesics).<\/li>\n\n\n\n<li><strong>From the 2nd to the 6th week<\/strong>\u00a0Upon returning home, moderate discomfort and a feeling of heaviness persist. Pain occurs mainly during rehabilitation exercises or at the end of the day and at night. Sleep may sometimes be disturbed during the first few weeks.<\/li>\n\n\n\n<li><strong>From the 2nd to the 3rd month<\/strong>\u00a0The reduction in pain is very significant. Walking distance increases and pain medication is gradually discontinued. Some sensitivity may remain during exertion or when climbing stairs.<\/li>\n\n\n\n<li><strong>Between 6 months and 1 year<\/strong>\u00a0Muscle recovery is achieved. Complete disappearance of pain varies greatly from patient to patient, and may take a long time.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Comprehensive pain management: analgesic protocol and cryotherapy<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">To maintain optimal comfort and facilitate rehabilitation, a combination of methods is used:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Drug treatments<\/strong>&nbsp;: the prescription combines analgesics (paracetamol, morphine derivatives if needed) and anti-inflammatories adjusted by the medical team.<\/li>\n\n\n\n<li><strong>Cryotherapy (treatment using cold)<\/strong>&nbsp;Applying ice or using cooling splints (15 to 20 minutes, 3 to 5 times a day) is a very effective way to reduce swelling and soothe pain.<\/li>\n\n\n\n<li><strong>Elevation of the operated limb<\/strong>&nbsp;: placing the leg elevated at rest promotes venous return and limits knee swelling.<\/li>\n\n\n\n<li><strong>Early mobilization<\/strong>&nbsp;Performing gentle movements from the day after the operation prevents joint stiffness, which is often responsible for prolonged discomfort.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Nursing care and rehabilitation: how to successfully recover?<\/h2>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"572\" src=\"https:\/\/protheseorthopedie.com\/wp-content\/uploads\/2026\/08\/reeducation-prothese-totale-genou-1024x572.webp\" alt=\"Physiotherapist performing knee mobilization during a rehabilitation session following total knee replacement\" class=\"wp-image-3240\" srcset=\"https:\/\/protheseorthopedie.com\/wp-content\/uploads\/2026\/08\/reeducation-prothese-totale-genou-1024x572.webp 1024w, https:\/\/protheseorthopedie.com\/wp-content\/uploads\/2026\/08\/reeducation-prothese-totale-genou-300x168.webp 300w, https:\/\/protheseorthopedie.com\/wp-content\/uploads\/2026\/08\/reeducation-prothese-totale-genou-768x429.webp 768w, https:\/\/protheseorthopedie.com\/wp-content\/uploads\/2026\/08\/reeducation-prothese-totale-genou-18x10.webp 18w, https:\/\/protheseorthopedie.com\/wp-content\/uploads\/2026\/08\/reeducation-prothese-totale-genou.webp 1200w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\">Post-operative physiotherapy sessions allow for the gradual recovery of mobility and muscle strength in the operated knee.<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">The success of prosthetic surgery does not depend solely on the surgical procedure: convalescence and rehabilitation directly influence the final functional outcome.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Early mobilization in the hospital and immediate care<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Within the framework of Enhanced Recovery After Surgery (ERAS) pathways, mobilization begins very quickly:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>The first sunrise<\/strong>&nbsp;: the physiotherapist accompanies the patient to get up and take a few steps on the evening of the operation or the following morning (Day 1).<\/li>\n\n\n\n<li><strong>Full support<\/strong>&nbsp;Walking with full weight-bearing on the operated leg is immediately permitted. The use of two crutches ensures safe movement.<\/li>\n\n\n\n<li><strong>Learning to climb stairs<\/strong>&nbsp;: walking exercises are started around the 2nd or 3rd day to validate autonomy before returning home.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Home nursing care: scar treatment, dressings, and staple removal<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">After discharge from the facility, the home health nurse provides skin follow-up:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Bandages<\/strong>&nbsp;The sterile dressing protects the anterior incision of the knee. It is changed on average every 5 days according to the surgeon&#039;s recommendations.<\/li>\n\n\n\n<li><strong>The removal of staples or wires<\/strong>\u00a0: if the scar has not been closed with glue or absorbable thread, the removal of staples or non-absorbable sutures is carried out after 20 days.<\/li>\n\n\n\n<li><strong>Skin monitoring<\/strong>&nbsp;The wound must remain clean and dry. The presence of extensive redness, marked local heat, purulent discharge, or fever requires immediate medical attention.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">The physiotherapy program and range of motion objectives (120\u00b0 of flexion)<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Rehabilitation continues with a physiotherapist in private practice or, more rarely, in a rehabilitation center if the patient&#039;s isolation requires it. The average frequency is 2 to 3 sessions per week for 6 to 8 weeks.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The rehabilitation program targets several key objectives:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>The full extension (0\u00b0)<\/strong>&nbsp;: achieving a perfectly straight knee is a priority to avoid any limping when walking.<\/li>\n\n\n\n<li><strong>Recovery of flexion<\/strong>&nbsp;The goal is to achieve 90\u00b0 to 100\u00b0 of flexion in the first month, then aim for&nbsp;<strong>120\u00b0 of flexion<\/strong>&nbsp;ultimately to perform all daily tasks without constraint.<\/li>\n\n\n\n<li><strong>Quadriceps strengthening<\/strong>&nbsp;: restoring thigh muscle strength ensures knee locking and overall stability.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Movements and postures not recommended during recovery<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">During the initial healing phase, certain habits need to be adapted:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Avoid forced bending beyond 90\u00b0 in the first few weeks.<\/li>\n\n\n\n<li>Avoid sudden twisting movements of the leg with the foot fixed on the ground.<\/li>\n\n\n\n<li><strong>Avoid placing a pillow under the hollow of the knee in bed, as this promotes a lack of extension (flexion contracture).<\/strong><\/li>\n\n\n\n<li>Do not carry heavy loads during the first two months.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Find all the safety rules in our article dedicated to <a href=\"https:\/\/protheseorthopedie.com\/en\/prohibited-movements-knee-prosthesis\/\">movements and gestures not recommended after a knee replacement.<\/a><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Daily life and resumption of activities after the fitting of a prosthesis<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Returning home requires some adjustments and gradual adaptations to secure your environment and promote a harmonious recovery.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Tips for sleeping well, driving, and furnishing your home<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Regaining independence comes with simple rules to protect the scar and avoid awkward movements:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Sleep<\/strong>&nbsp;The most comfortable position is to sleep on your back with your leg extended. To sleep on your side (the non-operated side), it is advisable to place a pillow between your knees to maintain leg alignment.<\/li>\n\n\n\n<li><strong>Driving a car<\/strong>&nbsp;Driving is permitted after 4 to 6 weeks, once braking reflexes are secure and strength in the operated limb has been regained.<\/li>\n\n\n\n<li><strong>Housing layout<\/strong>&nbsp;It is recommended to remove slippery mats, clear passageways, place a grab bar in the shower and, if necessary, a toilet seat riser.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Resumption of work and physical activities (walking, cycling, swimming)<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">The return to work is adapted to the physical demands of the job:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Sedentary profession (office, teleworking)<\/strong>&nbsp;: possible resumption between the 4th and 8th postoperative week.<\/li>\n\n\n\n<li><strong>Physical occupation or carrying of loads<\/strong>&nbsp;: the work stoppage generally lasts for 3 to 4 months, with a gradual return to work.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">From a sporting perspective, low-impact physical activity is strongly recommended from the 3rd month onwards:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Recommended sports<\/strong>&nbsp;: walking, cycling (stationary bike first, then road bike with a sufficiently high saddle), swimming (freestyle and backstroke), golf and hiking on stable terrain.<\/li>\n\n\n\n<li><strong>Sports not recommended<\/strong>&nbsp;Running (jogging), jumping sports, contact sports (football, rugby) and repeated impact sports may accelerate the wear of the polyethylene insert.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Frequently asked questions: kneeling position and airport security checkpoints<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Is it possible to kneel with a total prosthesis?<\/strong><br>Kneeling is medically possible once the scar is completely healed. However, it often remains uncomfortable due to the sensitivity of the previous scar. The use of a soft cushion or protective knee pad is strongly recommended for gardening or DIY projects.<\/li>\n\n\n\n<li><strong>Does the prosthesis set off airport security alarms?<\/strong><br>Yes, metallic components trigger metal detectors at airport security checkpoints. Simply inform the security officers that you wear a joint prosthesis. Further checks are carried out using a handheld scanner.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">What is the success rate and lifespan of a total knee replacement?<\/h2>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"572\" src=\"https:\/\/protheseorthopedie.com\/wp-content\/uploads\/2026\/07\/reussir-operation-genou-et-convalescence-1024x572.webp\" alt=\"Patient walking outdoors with a cane after a successful total knee replacement operation\" class=\"wp-image-3234\" srcset=\"https:\/\/protheseorthopedie.com\/wp-content\/uploads\/2026\/07\/reussir-operation-genou-et-convalescence-1024x572.webp 1024w, https:\/\/protheseorthopedie.com\/wp-content\/uploads\/2026\/07\/reussir-operation-genou-et-convalescence-300x168.webp 300w, https:\/\/protheseorthopedie.com\/wp-content\/uploads\/2026\/07\/reussir-operation-genou-et-convalescence-768x429.webp 768w, https:\/\/protheseorthopedie.com\/wp-content\/uploads\/2026\/07\/reussir-operation-genou-et-convalescence-18x10.webp 18w, https:\/\/protheseorthopedie.com\/wp-content\/uploads\/2026\/07\/reussir-operation-genou-et-convalescence.webp 1200w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\">After recovery, the vast majority of patients regain a smooth and pain-free gait thanks to the total knee replacement.<\/figcaption><\/figure>\n<\/div>\n\n\n<p class=\"wp-block-paragraph\">Total knee arthroplasty is one of the most successful and highly rated procedures in modern orthopedic surgery.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Functional outcomes and overall patient satisfaction<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">The\u00a0<strong>The success rate of a total knee replacement is between 80% and 85%.<\/strong>. This means that approximately 8 to 9 out of 10 patients experience major or complete pain relief, along with a marked improvement in their walking distance and quality of life. For a detailed analysis of the factors related to <a href=\"https:\/\/protheseorthopedie.com\/en\/knee-replacement-success-rate\/\">results and success rate of a knee replacement<\/a>, You can consult our dedicated section.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The observed benefits are as follows:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Disappearance of chronic joint pain of mechanical origin.<\/li>\n\n\n\n<li>Restoration of the anatomical alignment of the leg.<\/li>\n\n\n\n<li>Resumption of daily travel without reliance on walking sticks.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Approximately 15 to 20 of those who have undergone surgery may describe residual discomfort or moderate stiffness, which nevertheless remains significantly more tolerable than the initial arthritic pain.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">The lifespan of modern implants (15 to 20 years)<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Advances in materials (high-performance metal alloys and highly cross-linked polyethylene) and increased positioning accuracy (robotics and computer guidance) have greatly improved the longevity of prostheses.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Today,&nbsp;<strong>The average lifespan of a total knee replacement is between 15 and 20 years.<\/strong>. According to reference implant registries, more than 90% of implanted % prostheses are still in place after 15 years, and approximately 85% are still in place after 20 years.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Several factors help to preserve the implant over time:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Choosing suitable activities<\/strong>&nbsp;: prioritizing low-impact activities (walking, cycling, swimming) preserves polyethylene from mechanical wear.<\/li>\n\n\n\n<li><strong>Weight management<\/strong>&nbsp;: maintaining a stable body weight reduces the pressure exerted on the artificial joint.<\/li>\n\n\n\n<li><strong>Regular medical follow-up<\/strong>&nbsp;: a check-up consultation with monitoring x-rays every 2 to 3 years ensures proper bone integration.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">What are the potential risks and complications?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">As with any major surgical procedure, total knee replacement carries risks and potential complications. While their overall frequency remains low, it is essential to be aware of them in order to make an informed decision about the procedure.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Early complications: surgical site infection, phlebitis, and hematoma<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Adverse events may occur in the weeks following the operation:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Prosthesis infection<\/strong>\u00a0It affects 1% of cases in specialized facilities. It is a serious complication requiring targeted antibiotic treatment and surgical intervention (joint lavage or prosthesis replacement). Prevention relies on antibiotic prophylaxis in the operating room and the elimination of pre-existing infectious foci.<\/li>\n\n\n\n<li><strong>Phlebitis and pulmonary embolism<\/strong>&nbsp;Blood stagnation in the leg veins can promote clot formation. Preventive anticoagulant treatment prescribed for 4 to 5 weeks, wearing compression stockings, and early mobilization significantly reduce this risk.<\/li>\n\n\n\n<li><strong>Postoperative hematoma<\/strong>&nbsp;Bleeding in the knee may occur after the procedure. It usually resolves with rest, ice, and leg elevation, but may exceptionally require drainage.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Longer-term risks: joint stiffness and implant loosening<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">In the longer term, other complications may be observed:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Joint stiffness<\/strong>&nbsp;If fibrous adhesions form in the joint, flexion or extension may remain insufficient. Mobilization under brief anesthesia or surgical release via arthroscopy (arthrolysis) can restore flexibility to the knee.<\/li>\n\n\n\n<li><strong>Implant loosening<\/strong>&nbsp;Over time, the anchoring of the prosthesis in the bone can lose its strength due to wear of the polyethylene insert or bone aging. Loosening results in the recurrence of pain when walking and may necessitate inquiring about the options for revision knee replacement surgery.<\/li>\n\n\n\n<li><strong>Algodystrophy<\/strong>&nbsp;: this reflex inflammatory reaction, poorly understood, causes pain, swelling and stiffness for several months, gradually subsiding with appropriate treatment.<\/li>\n<\/ul>\n\n\n\n<div class=\"cta-box\" style=\"background-color: #f0f7ff; border: 2px solid #004a99; padding: 25px; border-radius: 10px; margin-top: 30px;\">\n        <h3 style=\"color: #004a99; margin-top: 0;\">Benefit from tailored support for your knee replacement<\/h3>\n        <p>Every joint is unique, and recovery after total joint replacement does not follow a rigid schedule. While the timeframes presented in this guide provide solid chronological benchmarks, your personal timeline will depend on specific factors: the initial deformity of your limb, the quality of your bone, the strength of your quadriceps muscles, and the regularity of your rehabilitation exercises.<\/p>\n        <p>Securing each step of your prosthetic journey and adjusting your physiotherapy program requires close communication with your surgeon. Individualized orthopedic follow-up remains essential to approach the procedure with complete peace of mind, prevent joint stiffness, and optimize the lifespan of your implant, whether your goal is to regain pain-free walking or resume leisure activities.<\/p>\n        <p style=\"margin-bottom: 0;\">Do you suffer from advanced gonarthrosis or are you considering a total knee replacement? <a href=\"https:\/\/protheseorthopedie.com\/en\/contact\/\" style=\"color: #004a99;\"><strong>I welcome you for a consultation<\/strong><\/a> to carry out a complete assessment of your joint, answer all your questions and define the therapeutic strategy best suited to your situation.<\/p>\n    <\/div>\n\n\n\n<div class=\"wp-block-buttons is-content-justification-center is-layout-flex wp-container-core-buttons-is-layout-fe48e5de wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/protheseorthopedie.com\/en\/contact\/\">Make an appointment<\/a><\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Advanced osteoarthritis of the knee causes chronic pain and a progressive loss of independence. When conventional medical treatments are no longer sufficient\u2026<\/p>","protected":false},"author":1,"featured_media":3239,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_seopress_titles_title":"Proth\u00e8se totale du genou : guide chirurgie et r\u00e9cup\u00e9ration","_seopress_titles_desc":"Tout savoir sur la proth\u00e8se totale de genou : d\u00e9roulement de l'op\u00e9ration, gestion de la douleur, r\u00e9\u00e9ducation et r\u00e9sultats \u00e0 long terme. 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