| Abstract ID |
| 20260098 |
| Category |
| Knee: ACL |
| Preferable Presentation |
| Poster |
| Title |
| OPTIMIZING HAMSTRING TENDON GRAFT HARVESTING TO MINIMIZE SARTORIAL BRANCH OF SAPHENOUS NERVE INJURY: CADAVERIC STUDY |
| Author |
|
| Presenter |
| Khananut |
| Abstract |
| Background: The sartorial branch of saphenous nerve(SBSN) injury is less frequently reported following ACL reconstruction but may occur during hamstring tendon harvesting. However, limited data exist, we aim to determine a safe zone for hamstring graft harvesting particularly in Asian populations. Study Design: Descriptive cadaveric study. Methods: Twenty fresh-frozen cadaveric knees were identified SBSN and its perforation points. Distances were measured from medial joint line and anterior tibial crest at upper border of gracilis tendon and lower border of semitendinosus tendon to SBSN, in full extension and 30-degree knee flexion. Results: In extension, the SBSN was 2.20 ± 0.55 cm from the joint line, 6.62 ± 1.06 cm from the tibial crest at the gracilis, and 4.82 ± 0.83 cm at the semitendinosus. With knee flexion, these increased to 7.44 ± 1.11 cm and 5.29 ± 0.86 cm, respectively. A Wilcoxon signed-rank test showed significant changes (Z = -5.51, p < 0.001). Interobserver agreement was excellent (ICC 0.84–0.93). Conclusion: Harvesting with knee flexed at 30 degrees and limiting sartorial fascia dissection to 5 cm from anterior tibial crest beginning at gracilis tendon may reduce the risk of SBSN injury. These findings can facilitate safer harvesting hamstring graft. |