Anterior cruciate ligament (ACL) injuries are among the most common sports injuries treated by orthopedic surgeons. For patients requiring surgery, one of the most important decisions is which graft to use to reconstruct the ACL.
Traditional graft choices include the patellar tendon (bone–patellar tendon–bone) and hamstring tendon autografts. However, quadriceps tendon autograft reconstruction has gained significant popularity over the past decade due to its excellent biomechanical properties and lower donor-site complications.
This article explains why quadriceps tendon ACL reconstruction is increasingly favored and what advantages it may offer patients.
Understanding the Quadriceps Tendon Graft
The quadriceps tendon connects the quadriceps muscles to the top of the patella. During ACL reconstruction, a portion of this tendon is harvested and used to create a new ligament.
The graft is then passed through small bone tunnels in the femur and tibia and secured with fixation devices. Over time, the graft integrates and functions as a new ACL.
Advantages of Quadriceps Tendon ACL Reconstruction
1. Stronger and Larger Graft
One of the most compelling advantages of the quadriceps tendon graft is its biomechanical strength.
Studies show that the quadriceps tendon contains approximately 20% more collagen fibers per cross-sectional area than the patellar tendon, and its load to failure can be higher than similar-width patellar tendon grafts.
This allows surgeons to obtain a thicker, stronger graft with improved durability—especially important for high-demand athletes.
2. Lower Risk of Anterior Knee Pain
Anterior knee pain is a common complaint after patellar tendon ACL reconstruction.
Because the quadriceps graft avoids harvesting the central patellar tendon, it often results in less kneeling pain, reduced anterior knee discomfort, and a lower risk of patellar fracture or tendon irritation.
This is particularly beneficial for patients whose occupations require frequent kneeling.
3. Less Donor-Site Morbidity
Donor-site morbidity refers to symptoms caused by harvesting the graft.
Hamstring grafts may lead to weakness and reduced flexion strength, while patellar tendon grafts are associated with anterior knee pain and kneeling discomfort.
Quadriceps tendon grafts typically result in less postoperative pain while preserving both hamstring strength and patellar tendon integrity.
4. Excellent Graft Size for Larger or Athletic Patients
Some patients—especially athletes or individuals with larger knee anatomy—require a larger diameter graft for optimal stability.
The quadriceps tendon naturally provides more tissue volume, making it easier to obtain a large, robust graft.
Larger grafts have been associated with lower failure rates and improved stability.
5. Versatility for Primary and Revision Surgery
Quadriceps tendon grafts are highly versatile and can be used as soft-tissue grafts, bone–tendon grafts, or in revision ACL surgery.
Because this approach preserves other graft options, it is especially useful when previous grafts have already been used.
6. Comparable or Improved Clinical Outcomes
Modern studies show that quadriceps tendon ACL reconstruction provides similar or improved knee stability, high return-to-sport rates, and low re-rupture rates.
Many surgeons now consider it a leading option for primary ACL reconstruction.
Comparing ACL Graft Options
Quadriceps Tendon
Graft strength: Excellent
Anterior knee pain: Low
Kneeling pain: Low
Hamstring weakness: None
Graft size: Large
Revision option: Excellent
Patellar Tendon (BTB)
Graft strength: Excellent
Anterior knee pain: Higher
Kneeling pain: Higher
Hamstring weakness: None
Graft size: Moderate
Revision option: Moderate
Hamstring Tendon
Graft strength: Good
Anterior knee pain: Low
Kneeling pain: Minimal
Hamstring weakness: Possible
Graft size: Variable
Revision option: Moderate
Who May Benefit Most from a Quad Tendon ACL Reconstruction?
This graft option may be especially beneficial for athletes, patients concerned about anterior knee pain, individuals whose jobs require kneeling, revision ACL cases, and patients needing a larger graft.
Graft selection should always be individualized based on patient anatomy, activity level, surgeon experience, and prior surgeries.
The Bottom Line
Quadriceps tendon ACL reconstruction is becoming one of the most versatile and effective graft choices in modern sports medicine.
Its advantages include strong graft tissue, less anterior knee pain, reduced donor-site complications, and excellent outcomes for both primary and revision surgery.
For many patients, it offers an ideal balance of strength, durability, and recovery.
