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KMID : 1023920150170030025
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Journal of the Korean Academy of Kinesiology
2015 Volume.17 No. 3 p.25 ~ p.34
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Effects of Muscle Deficit of Knee Extension Angle 30° on Knee Functional Scores following Anterior Cruciate Ligament Reconstruction
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Ahn Ho-Ju
Jeon Hyun-Sik
An Keun-Ok
Kang Hyun-Joo
Lee Ho-Seong
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Abstract
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PURPOSE: The purpose of this study was to investigate the effects of muscle deficit of knee extension angle 30° on knee functional scores following anterior cruciate ligament reconstruction.
METHODS: The patients who had less than 20% of peak torque value following reconstructive ACL operation were participated in this study. In addition, they were divided into a group with knee extension angle 30° muscle deficit less than 20% (Control group; CON, n = 15) and into a group with knee extension angle 30° muscle deficit more than 20% (Muscle deficit group; MDG, n = 15). Knee extension angle 30° muscle deficit, IKDC and Lysholm scores were measured in knee extension angle 30°.
RESULTS: Knee extension angle 30° muscle deficit was significantly higher in the MDG compared with CON (p<.001). IKDC and Lysholm scores were significantly lower in the MDG compared with CON (p<.001).
CONCLUSIONS: This study demonstrated that a larger knee extension angle 30° muscle deficit following reconstructive ACL operation reduces IKDC and Lysholm scores. Therefore, it is recommended that knee extension angle 30° muscle deficit should be considered for rehabilitation and return to sports after ACL reconstruction.
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KEYWORD
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anterior cruciate ligament, isokinetic test, peak torque value, muscle deficit, knee functional score
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