Knee · Tendons, fractures & replacement
Quadriceps tendon repair
Quadriceps Tendon Tear
The condition
The quadriceps tendon connects the large thigh muscles to the top of the kneecap and lets you straighten the knee. It usually tears from a sudden heavy load on a bent knee, such as catching yourself from a fall. A complete tear makes it hard to straighten the knee or walk and needs prompt repair.
The surgery
This is a typically outpatient surgery done through an incision above the kneecap. The tendon is reattached to the kneecap with strong sutures through small bone tunnels and/or anchors. Older tears may need a cadaver tendon graft for reinforcement. The final plan is determined during surgery.
Recovery at a glance
- Brace & weight
- Full weight right away with crutches and the brace locked straight; it stays locked for walking for 6 weeks (8 for older or reinforced repairs).
- Motion
- Bending to 30° for 2 weeks, then ~15° more per week to 90° by 6 weeks; full by 12 weeks. No active straightening out of the brace for 6 weeks.
- Daily life
- Desk work often within 2 weeks; brace and crutches are weaned by ~8 weeks. No driving while taking narcotic pain medication.
- Running
- Typically at ~5 months, once strength allows.
- Activity
- Full release typically 6–9 months (4–6 months for less demanding activity).
A general guide. Your restrictions and timeline may change based on what is found and done at surgery.
Risks & benefits
Benefits: Most patients regain the ability to straighten the knee and return to daily activities. Risks are uncommon and include infection, blood clots, re-tear of the tendon, weakness straightening the knee, loss of some bending, injury to nearby structures (such as nerves, blood vessels, or cartilage), stiffness, persistent pain, and the need for further surgery.
Patient Surgical Information
Open, save or print. Bring your questions to your pre-op visit.
Before & after every surgery