Quadriceps & Patellar Tendon Repair
What Is Quadriceps or Patellar Tendon Repair?
Quadriceps and patellar tendon repair are surgical procedures that reattach a torn tendon back to the kneecap, restoring the knee’s extensor mechanism — the connected chain of tissue that allows the leg to actively straighten. Because a fully torn quadriceps or patellar tendon cannot heal back together once the ends have separated, surgery is generally required to restore this connection.
When Is Quadriceps or Patellar Tendon Repair Needed?
Repair is generally recommended for:
- Complete tears, where the patient is unable to actively straighten the leg or perform a straight-leg raise
- Tears causing a palpable gap above or below the kneecap, along with the kneecap sitting noticeably higher or lower than normal
- Most active patients, since restoring full extensor mechanism function is important for walking, stairs, and higher-demand activity
Repair is ideally performed within the first couple of weeks after injury, since a torn tendon that has retracted and scarred in place for an extended period becomes progressively more difficult to fully restore to its original length.
How Is Quadriceps or Patellar Tendon Repair Performed?
Through an incision over the front of the knee, the torn tendon ends are identified and prepared for repair. Strong sutures are passed through the tendon and typically anchored through small tunnels drilled in the kneecap, or secured with suture anchors, restoring the tendon’s normal attachment and length. In cases where the tendon has retracted significantly or the tissue quality is poor — such as with chronic, longstanding tears or re-tears — a graft may be used to help bridge the gap and reinforce the repair.
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Recovery After Quadriceps or Patellar Tendon Repair
- A brace locked in full extension is worn initially to protect the repair while the tendon begins to heal
- Weight-bearing with the brace locked straight is often allowed early, though this is guided by the surgeon’s specific protocol and how secure the repair was intraoperatively
- The brace is gradually unlocked to allow progressive, controlled bending of the knee over the following weeks, guided by the strength and security of the repair
- Physical therapy focuses first on regaining motion, then progresses to quadriceps strengthening once adequate healing is confirmed
- Return to higher-impact activity, including running and jumping sports, generally takes 6 months or longer, reflecting the substantial healing time needed before the repaired tendon can reliably handle these forces
Closely following the brace and weight-bearing protocol in the early weeks is one of the most important factors in protecting the repair and achieving a successful long-term outcome.
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Dr. Palsis specializes in the treatment of knee, shoulder, and sports injuries.