Chung-Ting Liu1, Yung-Chang Lu2,3,4, Chang-Hung Huang5,6. 1. Department of Orthopaedic Surgery, Mackay Memorial Hospital, No. 92, Sec. 2, Chung-San North Rd., Taipei, 10449, Taiwan. 2. Department of Orthopaedic Surgery, Mackay Memorial Hospital, No. 92, Sec. 2, Chung-San North Rd., Taipei, 10449, Taiwan. yungchanglu@hotmail.com. 3. Department of Medical Research, Biomechanics Research Laboratory, Mackay Memorial Hospital, Tamshui, Taipei, Taiwan. yungchanglu@hotmail.com. 4. Department of Cosmetic Application and Management, Mackay Junior College of Medicine, Nursing, and Management, Taipei, Taiwan. yungchanglu@hotmail.com. 5. Department of Medical Research, Biomechanics Research Laboratory, Mackay Memorial Hospital, Tamshui, Taipei, Taiwan. 6. Department of Dentistry, National Yang-Ming University, Taipei, Taiwan.
Abstract
BACKGROUND: In some situations, harvested hamstring tendon grafts are not qualified for anterior cruciate ligament (ACL) reconstruction. This study aimed to present a reinforcing method with additional half peroneus longus tendon (half-PLT) graft augmentation. METHODS: Eight cases underwent ACL reconstruction with unqualified hamstring tendon grafts (diameter <7 mm) and were salvaged by additional half-PLT graft augmentation. The pivot shift test and KT-1000 tests were performed 3 years after surgery. Functional evaluation of subjective International Knee Documentation Committee (IKDC) and Lysholm scores was also done. In addition, Foot and Ankle Disability Index (FADI) scores were used to evaluate the function of the ankle donor site. RESULTS: The diameter of unqualified four-strand hamstring tendon grafts was 6.2 mm on average (range, 6.0-6.5 mm). The average diameter of hamstring grafts with half-PLT augmentation was 9.6 mm (range, 9.5-10.0 mm). The pivot shift test was negative in all patients. No significant differences between normal and abnormal knees were found by KT-1000. The average IKDC score was 86.0 (range, 83 to 89), and the average Lysholm score was 84.4 (range, 80-90). The average FADI score for the donor sites of half-PLT was 135.8 (range, 134-136). CONCLUSIONS: Additional half-PLT can successfully and safely reinforce unqualified hamstring tendon grafts for ACL reconstruction.
BACKGROUND: In some situations, harvested hamstring tendon grafts are not qualified for anterior cruciate ligament (ACL) reconstruction. This study aimed to present a reinforcing method with additional half peroneus longus tendon (half-PLT) graft augmentation. METHODS: Eight cases underwent ACL reconstruction with unqualified hamstring tendon grafts (diameter <7 mm) and were salvaged by additional half-PLT graft augmentation. The pivot shift test and KT-1000 tests were performed 3 years after surgery. Functional evaluation of subjective International Knee Documentation Committee (IKDC) and Lysholm scores was also done. In addition, Foot and Ankle Disability Index (FADI) scores were used to evaluate the function of the ankle donor site. RESULTS: The diameter of unqualified four-strand hamstring tendon grafts was 6.2 mm on average (range, 6.0-6.5 mm). The average diameter of hamstring grafts with half-PLT augmentation was 9.6 mm (range, 9.5-10.0 mm). The pivot shift test was negative in all patients. No significant differences between normal and abnormal knees were found by KT-1000. The average IKDC score was 86.0 (range, 83 to 89), and the average Lysholm score was 84.4 (range, 80-90). The average FADI score for the donor sites of half-PLT was 135.8 (range, 134-136). CONCLUSIONS: Additional half-PLT can successfully and safely reinforce unqualified hamstring tendon grafts for ACL reconstruction.