J Korean Orthop Assoc JKOA Journal of the Korean Orthopaedic Association 1226-2102 The Korean Orthopaedic Association 10.4055/jkoa.2007.42.3.366 Original Article Results of ACL Reconstruction with Autologous Hamstrings Fixed by Two Bioabsorbable Cross Pins on the Femoral Side and a Bioabsorbable Interference Screw with Additional Fixation on the Tibial Side Kim Chang-wan M.D. Bin Seong-Il M.D. * Kim Jong-Min M.D. † An Ji Hyun M.D. ‡ Lee Sang-Hoon M.D. § Park Jae-Bum M.D. * Kim Tae Ho M.D. * Lee Dae Hee M.D. * Department of Orthopedic Surgery, Busan Paik Hospital, University of Inje College of Medicine, Busan, Korea. Department of Orthopedic Surgery, Asan Medical Center, Ulsan University College of Medicine, Seoul, Korea. Department of Orthopedic Surgery, Kangbuk Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea. Department of Orthopedic Surgery, University of Dong-guk College of Medicine, Ilsan, Korea. Department of Orthopedic Surgery, KEPCO Medical Foundation, Hanil General Hospital, Seoul, Korea. Address reprint requests to Seong-Il Bin, M.D. Department of Orthopaedic Surgery, Asan Medical Center, College of Medicine, Ulsan University, 388-1, Pungnap 2-dong, Songpa-gu, Seoul 138-736, Korea. Tel: +82.2-3010-3528, Fax: +82.2-488-7877, sibin@amc.seoul.kr 06 2007 30 06 2007 42 3 366 372 Copyright © 2007 The Korean Orthopaedic Association 2007 Purpose

To evaluate the clinical outcomes of an anterior cruciate ligament reconstruction using autologous hamstring tendons with stable fixation.

 Materials and Methods

Seventy-six ACL reconstructions using autologous hamstring tendons were reviewed for an average of 16.5 months (Range, 12-35.6 months) postoperatively. All the patients were examined using standard clinical techniques and evaluated by stress radiography, Cybex™, Lysholm score, and International Knee Documentation Committee (IKDC) ratings.

 Results

In all cases, there were no limitations in the range of motion. The mean Lysholm score was 72.9 preoperatively, which later improved to 91.1 postoperatively. According to the IKDC grade, 74 cases were categorized as 'normal' or 'nearly normal' postoperatively. In addition, the Cybex™ study showed that at an angular velocity of 60°/sec, the strength deficit of the hamstrings decreased to 16% from 24% while the strength deficit of the quadriceps decreased to 27% from 31%. The mean side-to-side difference in stress radiography was 2.4 mm postoperatively. There was a single case of graft failure resulting from a deep infection.

 Conclusion

ACL reconstructions using autologous hamstrings using stable fixation techniques showed satisfactory results at the 16.5 months follow-up. However, further studies will be needed to confirm these findings over a longer follow-up period.

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achman and Pivot Shift Test Preoperatively and at the Final Follow Up

p<0.01.

Strength (Peak Torque) Deficit of the Flexor and Extensor Measured using the Cybex™ Isokinetic Muscle Strength Test Preoperatively and at the 1 Year Follow Up

Mean Deficit (%) of the Peak Torque and Total Work Preoperatively and at 1 Year Follow Up