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Clinical Trial
. 2015 Sep 30;10(9):e0139038.
doi: 10.1371/journal.pone.0139038. eCollection 2015.

Effect of Time after Anterior Cruciate Ligament Tears on Proprioception and Postural Stability

Dae-Hee Lee  1 , Jin-Hyuck Lee  2 , Sung-Eun Ahn  2 , Min-Ji Park  2
Affiliations
Clinical Trial

Effect of Time after Anterior Cruciate Ligament Tears on Proprioception and Postural Stability

Dae-Hee Lee et al. PLoS One. .

Abstract

This study was designed to compare proprioception and postural stability in patients with acute (time from injury ≤ 3 months) and chronic (time from injury > 3 months) ACL tears, and to evaluate the correlation between time interval after ACL injury and proprioception. Thigh muscle strength, postural stability, and joint position sense were compared in 48 patients with acute ACL tears and in 28 with chronic ACL tears. Maximal torque (60°/sec) of the quadriceps and hamstring was evaluated using an isokinetic testing device. Postural stability was determined from the anterior-posterior (APSI), medial-lateral (MLSI), and overall (OSI) stability indices using stabilometry. Joint position sense was also tested by reproduction of passive positioning (RPP). Muscle strengths and stability indices on both the involved and uninvolved sides were similar in the acute and chronic ACL tear groups. RPP on the involved side was significantly greater in the chronic than in the acute ACL tear group (7.8° vs. 5.6°, P = 0.041). Two of three stability indices (APSI, OSI) and RPP were significantly greater on the involved than the uninvolved side in the chronic ACL tear group.

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Conflict of interest statement

Competing Interests: The authors have declared that no competing interests exist.

Figures

Fig 1
Fig 1. Postural stability and joint position sense on the involved and uninvolved sides in patients with acute and chronic ACL tears.
(a) Overall stability index (OSI). (b) Anterior-posterior stability index (APSI). (c) Mediolateral stability index (MLSI). (d) Reproduction of passive position (RPP). *p<0.05.
See this image and copyright information in PMC

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