Muscle-Sparing Knee Replacement
At UNC Ortho, patients requiring knee replacement surgery may be recommended a procedure using muscle-sparing techniques. If your surgeon recommends muscle-sparing knee replacement, it is because your unique medical history and needs make you a good candidate for the treatment. Read on to explore muscle-sparing knee replacement and how it might benefit you.
What is muscle-sparing knee replacement?
Muscle-sparing knee replacement is an advanced surgical approach that focuses on preserving as much of the body's natural anatomy as possible when performing knee replacement surgery. In traditional approaches to knee replacement, the quadriceps tendon is cut, which separates a portion of the quadriceps muscle from its attachment to the patella. The tendon is cut so that the surgeon can get a clear view of the knee joint. After surgery is complete, the tendon is repaired. By using a muscle-sparing—or "subvastus"—approach, Dr. Russell Stewart is able to work around the entire quadriceps extensor mechanism instead of cutting through it.
By carefully working between muscles, the procedure aims to protect important soft tissues and minimize trauma to surrounding structures in the knee whenever possible. This tissue-preserving philosophy can help maintain more natural knee function and support a smoother recovery experience after surgery.
The goal is not only to relieve pain caused by arthritis or join damage, but also to restore mobility while respecting the body's natural mechanics. For many patients, muscle-sparing techniques represent a modern, less invasive option designed to promote comfort, confidence and a faster return to daily activities.
What are the potential benefits of muscle-sparing knee replacement?
Because muscle-sparing knee replacement minimizes disruption to healthy tissues, many patients may experience advantages compared to more traditional surgical approaches. Potential benefits can include:
- Less trauma to the quadriceps and muscle insertion
- Potential for reduced postoperative pain
- Preserved patellar blood supply
- Preserved natural motion of the kneecap ("patellar tracking")
- Improved early mobility and function
- Faster recovery and rehabilitation timelines
- Greater preservation of natural knee movement and stability
Every patient's condition, anatomy and recovery are unique—outcomes can vary. A thorough evaluation with an orthopedic specialist can help determine whether a muscle-sparing approach is the right option for your individual needs. Dr. Stewart is committed to working with each patient to create a personalized treatment plan that helps you reach your goals.
