Dr. Zachary Weidner, M.D.
Fellowship Trained in Hip & Knee Replacement
Board Certified Orthopedic Surgeon
Expert for Pain from Hip and Knee Arthritis
VISIT US
The Centers for Advanced Orthopaedics
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Prince William Orthopaedics
8525 Rolling Road, Suite 300
Manassas, VA 20110
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Fair Oaks Office
3650 Joseph Siewick Dr, Suite 300
Fairfax, VA 22033
FOR APPOINTMENT CALL 703-393-1667 or schedule online via link below!
Subvastus Total Knee Replacement
Videos of patients of Dr. Weidner that had subvastus minimally invasive quadriceps sparing total knee replacement surgery. These videos were taken at the time of their first postop appointment two weeks after surgery. You can see how well they are walking and not needing a cane or walker to get around.
Minimally Invasive Subvastus (Quadriceps Sparing) Knee Replacement Surgery
The image above shows the different ways surgeons cut into the knee joint to remove the arthritis and put in the implants necessary during knee replacement surgery. The image on the left shows by far the most common approach to the knee called the median parapatellar approach. This approach involves cutting the quadriceps tendon and repairing it at the end of the procedure. Naturally, this causes a lot of pain and weakness of the quadriceps muscle after surgery while it is healing.
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The image to the right depicts the subvastus approach to the knee which Dr. Weidner is now offering for his knee replacement patients. This approach involves going underneath the quadriceps muscle and moving the entire extensor mechanism to the side to access the knee joint. There is no tendon damage and minimal muscle trauma. This allows for less pain and a quicker recovery because you are not relying on tendon and muscle healing after the surgery to regain strength of the quadriceps muscles. Patients with a subvastus muscle sparing knee replacement can expect to regain motion more quickly and likely require less postoperative physical therapy.