![\"X-ray](\"https:\/\/2025divi.cortho.org\/wp-content\/uploads\/2021\/06\/Swelling-after-Knee-Replacement.jpg\" "\\"X-ray")
X-ray showing a total knee replacement.<\/p><\/div>\n
Why It Happens \u2013 Causes (Etiology and Pathophysiology)<\/h3>\n
Swelling after knee replacement surgery is a natural part of the body\u2019s healing process. The surgery involves cutting through tissues, including skin, muscles, and bone, which causes inflammation. The body responds by sending fluid to the affected area to aid in the healing process. Additionally, factors such as blood vessel changes, fluid accumulation, and the body\u2019s inflammatory response contribute to the swelling. In some cases, swelling can indicate complications such as deep vein thrombosis or an infection of the prosthetic joint.<\/p>\n
Surgical Impact<\/strong>: The physical manipulation of bone and tissue during surgery causes an inflammatory response.<\/p>\n Fluid Accumulation<\/strong>: The body’s response includes increasing fluid in the knee area to aid in healing, which contributes to swelling.<\/p>\n Blood Vessel Changes<\/strong>: Surgery can affect blood flow dynamics around the knee, further contributing to fluid buildup.<\/p>\n The knee joint is a hinge joint made up of the femur (thigh bone), tibia (shin bone), fibula (calf bone), and patella (kneecap). Ligaments, tendons, and cartilage help stabilize and allow movement in the knee. In total knee replacement surgery, the damaged portions of the femur and tibia are removed and replaced with metal and plastic components to restore the joint’s function.<\/p>\n Intraoperative image showing knee replacement implants.<\/p><\/div>\n After knee replacement surgery, it is normal to experience some pain, swelling, and stiffness. Patients may also notice limited movement in the knee joint as it heals. The swelling may be more pronounced at the end of the day or after physical activity. If swelling is accompanied by redness, warmth, or fever, it could indicate infection or other complications and should be promptly addressed.<\/p>\n The diagnosis of swelling after knee replacement surgery is generally made based on clinical examination and patient history. Imaging studies, such as X-rays or ultrasounds, may be used to assess the placement of the prosthetic components and rule out complications such as infection or deep vein thrombosis.<\/p>\n Swelling after knee replacement can be classified as mild, moderate, or severe, depending on its extent and the presence of other symptoms. Mild swelling is expected and tends to resolve with time. Moderate to severe swelling that does not improve or is associated with other symptoms may require further investigation to rule out complications.<\/p>\n Swelling in the knee after surgery can sometimes be mistaken for other conditions. It is essential to distinguish between post-surgical swelling and issues such as infection, blood clots, or a failure of the prosthetic joint. Deep vein thrombosis (DVT) can cause swelling and should be ruled out. Infection of the knee joint can also present with swelling, redness, and pain, which requires immediate medical attention.<\/p>\n Non-Surgical Care<\/strong> Surgical Care<\/strong> Swelling typically peaks in the first few days after surgery and gradually decreases as healing progresses. However, mild swelling may persist for several months. Adhering to post-operative care, including ice therapy, leg elevation, and movement exercises, can help manage swelling and accelerate recovery. Full recovery from knee replacement surgery can take up to 6 months.<\/p>\n While swelling is a common and generally benign complication, it may signal more serious issues such as infection, deep vein thrombosis, or joint instability. Symptoms of infection include redness, warmth, fever, and purulent discharge from the surgical site. Severe swelling combined with leg pain may indicate a blood clot, which can lead to a life-threatening pulmonary embolism if left untreated.<\/p>\n For most patients, swelling will decrease over time as the body heals. While mild swelling can persist for several months, it typically resolves with continued physical therapy and proper self-care. However, if swelling is associated with complications like infection or blood clots, the prognosis depends on early intervention and appropriate treatment.<\/p>\n Medicare<\/p>\n CPT Code 20610 \u2013 Joint Aspiration for Infection Evaluation: $15.12 Under Medicare, 80% of the approved amount for these procedures is covered once your annual deductible has been met. The remaining 20% is typically the patient\u2019s responsibility. Supplemental insurance plans\u2014such as Medigap, AARP, or Blue Cross Blue Shield\u2014generally cover this 20%, meaning most patients will have little to no out-of-pocket expenses for Medicare-approved procedures. These supplemental plans work directly with Medicare to ensure full coverage for the procedures.<\/p>\n If you have secondary insurance\u2014such as Employer-Based coverage, TRICARE, or Veterans Health Administration (VHA)\u2014it acts as a secondary payer once Medicare processes the claim. After your deductible is satisfied, these secondary plans may cover any remaining balance, including coinsurance or small residual charges. Secondary plans typically have a modest deductible, ranging from $100 to $300, depending on the specific policy and network status.<\/p>\n Workers\u2019 Compensation<\/strong> No-Fault Insurance<\/strong> Example Q. How long will swelling last after knee replacement surgery?<\/strong> Q. What can I do to reduce swelling after surgery?<\/strong> Q. Is swelling a sign of infection after knee replacement surgery?<\/strong> Swelling is a normal part of recovery after knee replacement surgery and typically resolves within a few months. However, patients should be vigilant for signs of complications, such as infection or deep vein thrombosis, which require immediate medical attention. Proper post-surgical care, including rest, elevation, ice, and physical therapy, can help reduce swelling and improve recovery.<\/p>\n A recent study systematically reviewed the effects of manual therapy on pain management after total knee replacement (TKR) surgery. The findings indicated that manual therapy techniques, including osteopathic manipulative treatment (OMT), manual lymphatic drainage (MLD), and kinesio taping (KT), show promise in reducing pain and improving functional outcomes in the early postoperative period.<\/p>\n Specifically, MLD and KT were particularly effective in managing pain and swelling shortly after surgery, with improvements observed by day 4 post-surgery, although these benefits were generally short-lived.<\/p>\n Despite these encouraging results, the study highlighted the variability in outcomes across different interventions, underscoring the need for further research to refine protocols and better understand the long-term benefits of manual therapy in TKR rehabilitation. (“Study on manual therapy for postoperative knee rehabilitation \u2013 See PubMed<\/em><\/a>“.)<\/p>\n Knee replacement surgery is typically performed by an orthopedic surgeon specializing in joint replacement. Post-operative care is managed by a team that may include physical therapists, nurses, and pain management specialists to optimize recovery and manage swelling.<\/p>\n If swelling is not improving or is accompanied by severe pain, redness, fever, or difficulty breathing, it is essential to seek immediate medical attention. A healthcare provider should be consulted if swelling persists beyond the expected time frame or worsens.<\/p>\n Seek emergency care if you experience sudden and severe pain, swelling that rapidly increases, chest pain, or shortness of breath. These symptoms could indicate serious complications like deep vein thrombosis or a pulmonary embolism.<\/p>\n Recovery from knee replacement surgery involves managing swelling, restoring movement, and regaining strength. While some patients can begin walking the day after surgery, full mobility is often achieved within a few months, with ongoing physical therapy.<\/p>\n Ignoring excessive or worsening swelling can lead to complications such as infection or blood clots, which can significantly delay recovery and may require additional surgeries. Timely intervention is crucial to avoid long-term problems.<\/p>\n To minimize swelling, patients should follow post-operative care instructions carefully, including regular exercise to promote circulation, elevation of the leg, and application of ice. Wearing compression stockings and using blood-thinning medications may also help reduce the risk of complications like blood clots.<\/p>\n A well-balanced diet rich in nutrients, including vitamins C and D, calcium, and protein, supports healing and overall joint health. Hydration is also crucial to help manage fluid retention and support the healing process after knee surgery.<\/p>\n Patients should gradually increase activity levels post-surgery to avoid overexertion and worsening of swelling. Avoiding long periods of standing or sitting and performing gentle exercises, as recommended by a physical therapist, can help prevent complications and improve circulation.<\/p>\n [\/et_pb_text][et_pb_text admin_label=”FAQ Headline” _builder_version=”4.24.2″ _module_preset=”default” global_colors_info=”{}”]<\/p>\n [\/et_pb_text][et_pb_df_faq admin_label=”FAQ Module – Change the FAQ Category Here” filter_by_category_on=”on” include_categories=”5371″ accordion_bg_color_closed=”#1f7714″ accordion_bg_color_open=”#1f7714″ accordion_icon_color=”#FFFFFF” accordion_icon_color_open=”#FFFFFF” _builder_version=”4.25.1″ _module_preset=”default” question_text_color=”#FFFFFF” answer_text_color=”#FFFFFF” global_colors_info=”{}”]<\/p>\n <\/p>\n [\/et_pb_df_faq][\/et_pb_column][et_pb_column type=”1_4″ _builder_version=”4.16″ custom_padding=”|||” global_colors_info=”{}” custom_padding__hover=”|||”][et_pb_sidebar area=”sidebar-1″ _builder_version=”4.16″ global_colors_info=”{}”]<\/p>\n [\/et_pb_sidebar][\/et_pb_column][\/et_pb_row][\/et_pb_section]<\/p>\n","protected":false},"excerpt":{"rendered":" Swelling after Knee Replacement Knee replacement surgery is one of the most commonly performed procedures in orthopedics, often providing relief from chronic knee pain caused by conditions like arthritis. While this procedure is generally successful, swelling and discomfort in the knee area are common concerns for patients post-surgery. Understanding the causes of swelling, when to […]<\/p>\n","protected":false},"author":37,"featured_media":13359,"parent":57534,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_seopress_robots_primary_cat":"","_seopress_titles_title":"Swelling after Total Knee Replacement - Complete Orthopedics","_seopress_titles_desc":"Complications after knee replacement surgery are rare but persistent pain or swelling are the most common complaints after knee replacement.","_seopress_robots_index":"","_et_pb_use_builder":"on","_et_pb_old_content":" Total knee replacement<\/a> is a common orthopedic surgery and one of the most successful surgeries in medicine. Complications after knee replacement surgery<\/a> are rare but persistent pain or swelling are the most common complaints after knee replacement.<\/p> While some swelling is normal even up until 6 months post-surgery, swelling may also occur as a result of serious complications such as deep vein thrombosis or prosthetic joint infection.<\/p> Arthritis of the knee joint<\/a> is the most common indication for replacement surgery. During replacement surgery, the surgeon gives an incision in front of the knee and cuts\/separates tissues to reach the diseased knee joint. During the entire surgery, the patient remains under either general anesthesia or spinal anesthesia.<\/p>[caption id=\"attachment_13359\" align=\"aligncenter\" width=\"534\"] The surgeon further proceeds to cut and remove the diseased ends of the thigh bone and the shin bone. The removed ends are replaced with metal alloy and plastic parts<\/a>. The prosthetic joint functions to recreate the motion and alignment of the natural joint.<\/p> Swelling and pain are the most common complaints after knee replacement. The swelling is normal and is usually moderate to severe in the first week but gradually decreases for the next weeks and months. Mild swelling may persist normally as long as six months post-surgery.<\/p> Swelling is defined as a protuberance of a body. In the case of the knee after replacement surgery, the swelling occurs as a result of the accumulation of excess fluid in the tissue of the knee joint. During surgery, the skin, soft tissues, and bones are cut to perform the surgery. As they take time to heal, there may be excess fluid accumulation in the tissue as a part of the inflammatory chain leading to healing.<\/p>How the Body Part Normally Works? (Relevant Anatomy)<\/h3>\n
![\"Intraoperative](\"https:\/\/2025divi.cortho.org\/wp-content\/uploads\/2021\/06\/Swelling-after-Knee-Replacement2.jpg\" "\\"Intraoperative")
What You Might Feel \u2013 Symptoms (Clinical Presentation)<\/h3>\n
How Doctors Find the Problem? (Diagnosis and Imaging)<\/h3>\n
Classification<\/h3>\n
Other Problems That Can Feel Similar (Differential Diagnosis)<\/h3>\n
Treatment Options<\/h3>\n
Managing swelling post-surgery involves rest, elevation, and the application of ice. Over-the-counter anti-inflammatory medications may be used to control swelling and pain. Physical therapy is also crucial for improving movement and reducing swelling by promoting fluid drainage.<\/p>\n
In some cases, surgical intervention may be required if swelling is caused by complications such as infection or blood clots. Infected prosthetic joints may require revision surgery, and blood clots may require procedures to remove or dissolve the clot.<\/p>\nRecovery and What to Expect After Treatment<\/h3>\n
Possible Risks or Side Effects (Complications)<\/h3>\n
Long-Term Outlook (Prognosis)<\/h3>\n
Out-of-Pocket Costs<\/h3>\n
CPT Code 27301 \u2013 Irrigation & Debridement of Infected Prosthetic Knee: $159.02
CPT Code 27486 \u2013 Irrigation & Debridement of Infected Prosthetic Knee (if Component Revision): $332.04
CPT Code 27487 \u2013 Revision Total Knee Replacement (Femoral + Tibial Components): $413.16
CPT Code 34201 \u2013 Blood Clot Removal (Thrombectomy, Lower Extremity): $237.43
CPT Code 34203 \u2013 Blood Clot Removal (Thrombectomy, Lower Extremity, if bilateral): $220.95<\/p>\n
If your knee infection, thrombosis, or surgery is work-related, Workers’ Compensation will fully cover all treatment-related costs, including surgery, hospitalization, and rehabilitation. You will have no out-of-pocket expenses under an accepted Workers’ Compensation claim.<\/p>\n
If your knee surgery or thrombectomy is the result of a motor vehicle accident, No-Fault Insurance will cover all medical and surgical expenses. The only possible out-of-pocket cost may be a small deductible depending on your individual policy terms.<\/p>\n
Emily, a 63-year-old patient with a knee prosthesis infection, required irrigation and debridement of her infected knee (CPT 27301) and later underwent a total knee replacement revision (CPT 27487). Her estimated Medicare out-of-pocket costs were $159.02 for the debridement and $413.16 for the knee revision. Since Emily had supplemental insurance through Blue Cross Blue Shield, the 20% that Medicare did not cover was fully paid, leaving her with no out-of-pocket expenses for the procedures.<\/p>\nFrequently Asked Questions (FAQ)<\/h3>\n
A. Swelling is expected to last for a few weeks to months after surgery. It should gradually improve, but mild swelling may persist for up to six months.<\/p>\n
A. Elevating your leg, applying ice, and using compression stockings can help reduce swelling. Physical therapy exercises and prescribed medications may also be beneficial.<\/p>\n
A. Swelling is common after knee replacement surgery and does not necessarily indicate infection. However, if swelling is accompanied by redness, fever, or discharge from the surgical site, it may suggest an infection and should be evaluated by a healthcare provider.<\/p>\nSummary and Takeaway<\/h3>\n
Clinical Insight & Recent Findings<\/h3>\n
Who Performs This Treatment? (Specialists and Team Involved)<\/h3>\n
When to See a Specialist?<\/h3>\n
When to Go to the Emergency Room?<\/h3>\n
What Recovery Really Looks Like?<\/h3>\n
What Happens If You Ignore It?<\/h3>\n
How to Prevent It?<\/h3>\n
Nutrition and Bone or Joint Health<\/h3>\n
Activity and Lifestyle Modifications<\/h3>\n
Do you have more questions?\u00a0<\/h2>\n
<\/a> X-ray showing a total knee replacement.[\/caption]