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KMID : 0361620060410050793
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Journal of the Korean Orthopaedic Association
2006 Volume.41 No. 5 p.793 ~ p.801
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A Comparison of Fibular Head Tunnel and Tibial Tunnel in the Reconstruction of a Posterolateral Instability of the Knee
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Jung Young-Bok
Jung Ho-Joong
Lee Yong-Seuk
Jin Ho-Sun
Tae Suk-Kee
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Abstract
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Purpose: This study compared the surgical results of various posterolateral corner sling methods performed through either the fibula head tunnel or tibia tunnel in patients with chronic PLRI (PosteroLateral Rotatory Instability).
Materials and Methods: Between January 1999 and October 2003, 20 and 19 patients who had undergone surgery for PCL (posterior cruciate ligament) tensioning and an ALB (anterolateral bundle) reconstruction through the fibula head tunnel or tibia tunnel, respectively and were followed up more than 1 year were enrolled in this study.
Results: The fibular head tunnel was found to be superior compared with the tibia tunnel method in terms of the operation time (36.5+/-7.5 versus 68.4+/-12.8) (p<0.0001), rotational stability (p= 0.0018) and IKDC objective score (p<0.0001). In the fibula head tunnel group, 85% of patients had an equal to normal or tighter than normal rotational stability in the tibial tunnel group with 63% having an equal to normal or tighter than normal side at the last evaluation. In the IKDC objective score, 85% of patients in the fibula head tunnel group had a rating B or higher at the last evaluation compared with 79% in the tibial tunnel group (p<0.0001). However there were no significant differences in anteroposterior stability and OAK score.
Conclusion: The modified posterolateral corner sling through the fibula head tunnel produces better results in terms of a posterolateral rotational stability of grade II chronic PLRL in a combined PCL injury than that using the tibia tunnel method.
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KEYWORD
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Knee, Posterolateral rotatory instability, Posterolateral reconstruction, Fibular head tunnel, Tibial tunnel
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