Arthroscopic single-bundle anterior cruciate ligament reconstruction with periosteum-enveloping hamstring tendon graft: clinical outcome at 2 to 7 years

Chih-Hwa Chen, Chih-Hsiang Chang, Chun-I Su, Kun-Chung Wang, Hsien-Tao Liu, Chung-Ming Yu, Chak-Bor Wong, I-Chun Wang
Arthroscopy 2010, 26 (7): 907-17

PURPOSE: In this case-series outcome study, we present our surgical technique for single-bundle anterior cruciate ligament (ACL) reconstruction with periosteum-enveloping hamstring tendon graft at a minimum of 2 years' follow-up.

METHODS: From 2000 to 2005, ACL reconstruction with a periosteum-enveloping hamstring tendon graft was performed in 368 patients (372 knees). Of those patients, 312 who completed at least 2 years of follow-up were included for analysis. Four-strand periosteum-enveloping hamstring tendon grafts were used for single-bundle reconstruction. Clinical assessments included the Lysholm knee score, International Knee Documentation Committee score, KT-1000 instrumented testing (MEDmetric, San Diego, CA), thigh muscle assessment, and radiographic evaluation. Radiographs were used to assess femoral and tibial tunnel widening.

RESULTS: The 312 study patients were followed up for a mean of 4.6 years (range, 2 to 7 years). The median Lysholm knee scores were 56 points (range, 40 to 70 points) and 95 points (range, 60 to 100 points) before and after surgery, respectively. After reconstruction, 85% of patients could return to moderate or strenuous activity, 5.1% exhibited grade 2 or higher ligament laxity with the anterior drawer test, and 6.1% had a positive pivot shift. Complete range of motion was achieved in 88% of patients. On the basis of International Knee Documentation Committee assessment, 93% of patients had a normal or nearly normal rating.

CONCLUSIONS: Satisfactory results can be achieved with the periosteum-enveloping hamstring tendon graft in single-bundle ACL reconstruction with minimal tunnel widening. Bone tunnel enlargement of more than 1 mm was identified in 5.4% of femoral tunnels and 6.1% of tibial tunnels, which was less than in other studies using comparable fixation.

LEVEL OF EVIDENCE: Level IV, therapeutic case series.

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