Quadriceps and Patellar Tendon Repair

Phase I (Weeks 4-10)

1. Weightbearing: As tolerated in the hinged knee brace locked in extension
2. Hinged Knee Brace
   • Progressive increase in flexion allowed under guidance of PT
   • Week 4: 0–30°
   • Week 5: 0–40°
   • Week 6: 0–70°
   • Week 8: 0–90°
   • Week 10: Unlocked
3. Range of Motion – PROM and AAROM as tolerated according to restrictions above
4. Therapeutic Exercise
   • Begin isometric quadriceps strengthening and straight-leg raises
   • Patellar mobilization and scar massage

Phase II (Weeks 10-16)

1. Weightbearing: As tolerated — in unlocked hinged knee brace until week 12
2. Hinged Knee Brace
   • Completely unlocked for Weeks 10–12
   • Discontinue brace at Week 12 if patient can perform straight-leg raise with good quad control
3. Range of Motion – AAROM → AROM as tolerated
   • Goal: Full flexion by weeks 12–14
4. Therapeutic Exercise
   • Continue patellar mobilizations
   • Start stationary bicycle when ROM allows
   • Aquatic therapy
   • Begin progressive resistance exercises and therabands

Phase III (Months 4-6)

1. Weightbearing: As tolerated
2. Range of Motion – Full and painless
3. Therapeutic Exercise
   • Continue quadriceps strengthening
   • Focus on single-leg strength
   • Start treadmill walking and progress to light jogging at month 6

Phase IV (Months 6-12)

1. Gradual return to athletic activity as tolerated
2. Maintenance program for strength and endurance