Subvastus Approach to Knee Surgery

The subvastus approach is a muscle-sparing surgical technique used in total knee replacement (TKR). It preserves the quadriceps muscle by avoiding any cuts to the vastus medialis oblique (VMO), leading to faster recovery, less pain, and improved knee function.

How the Subvastus Approach Works

1. Incision Placement – The surgeon makes an incision on the front of the knee away from the high pressure kneeling areas.
2. Muscle Preservation – Instead of cutting through the quadriceps muscle or tendon, the VMO muscle is gently lifted to access the knee joint.
3. Bone & Cartilage Work – The damaged bone and cartilage are removed, and a knee implant is placed.
4. Closure – The VMO is placed back in its original position, and the incision is closed.

Benefits of the Subvastus Approach

✅ Muscle-Sparing – No cutting of the quadriceps tendon or muscle.
✅ Faster Recovery – Many patients can walk within hours after surgery.
✅ Better Early Knee Strength – Patients regain quadriceps function more quickly.
✅ Lower Risk of Post-Op Weakness – Reduced risk of limping or long-term stiffness.