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Published on: September 2, 2025
Augmentation technique for partial ACL ruptures using semitendinosus tendon in the over-the-top position
Jose Miguel Serrano-Fernandez1, Alejandro Espejo-Baena, Belén Martin-Castilla
1Trauma and Orthopaedic Surgery Department, Hospital Clínico Universitario Vírgen de la Victoria, C/Paseo de las Brisas, Bloque 1, Benalmadena, Malaga, Spain. josemiserrano@hotmail.com
Summary
This study introduces a surgical technique for partial anterior cruciate ligament (ACL) ruptures, preserving intact fibers. The method shows promising results, with most patients achieving good to excellent knee function and activity levels post-surgery.
Area of Science:
- Orthopedic Surgery
- Sports Medicine
- Biomedical Engineering
Background:
- Partial anterior cruciate ligament (ACL) ruptures present a challenge in surgical management.
- Preserving intact ligament fibers is crucial for optimal knee function and stability.
- Existing techniques may not adequately address the preservation of remnant ACL tissue.
Purpose of the Study:
- To present a novel surgical augmentation technique for partial ACL ruptures.
- To evaluate the efficacy of using an isolated, autologous, double-bundle semitendinosus tendon graft.
- To preserve intact ACL fibers during reconstruction.
Main Methods:
- A cohort of 24 patients with partial ACL ruptures underwent reconstruction using a semitendinosus autograft.
- The graft was passed over the top of the femur, preserving the intact ACL fibers.
- Patients were followed for a median of 6.2 years and evaluated using IKDC, Tegner, Lysholm scales, and KT-1000 instrument.
Main Results:
- 16 out of 24 patients achieved an International Knee Documentation Committee (IKDC) score of A (excellent).
- Six patients scored B, one C, and one D.
- Median pre-injury activity level was 7 (Tegner scale), decreasing to 6 post-injury, with a mean Lysholm score of 95.
Conclusions:
- The described surgical technique for partial ACL ruptures effectively preserves intact ligament fibers.
- This approach demonstrates good to excellent functional outcomes and patient satisfaction.
- Preserving the intact bundle during reconstruction may enhance rotational stability in partial ACL tears.
