title: Postural stability in patients with anterior cruciate ligament tears with and without medial meniscus tears.
abstract: OBJECTIVE
  To compare postural stability in patients with isolated anterior cruciate ligament (ACL) tears and ACL tears with associated meniscal tears.
  
  
  METHODS
  Quadriceps and hamstring muscle strength and their ratio, as well as the relationships of these parameters with postural stability, were compared in 23 patients with isolated ACL tears and 27 with combined ACL and medial meniscus tears. Postural stability was determined from the anterior-posterior, medial-lateral, and overall stability indices using the Biodex Stability System.
  
  
  RESULTS
  On both the involved and uninvolved sides, there were no differences in mean stability indices, including anterior-posterior, medial-lateral, and overall stability indices, in patients with isolated and combined ACL tears. In patients with isolated ACL tears, both overall (2.3 ± 1.2 vs. 1.8 ± 1.4, p = 0.033) and medial-lateral (1.2 ± 0.6 vs. 1.0 ± 0.5, p = 0.031) stability indices were significantly higher on the involved compared to the uninvolved side. These differences, however, were not observed in the combined ACL tear group.
  
  
  CONCLUSIONS
  No significant differences in postural instability on the affected and unaffected sides were observed in patients with isolated ACL tears and those with combined ACL and medial meniscus tears. These findings indicate that there is no need to reduce the goal of restoring proprioception in patients with combined compared with isolated ACL tears.
  
  
  METHODS
  III.
authors.affiliation: Department of Orthopaedic Surgery, Korea University Anam Hospital, Korea University College of Medicine, Anam-dong 5-ga, Seongbuk-gu, Seoul, 136-705, Korea.
authors.forename: Jong-Hoon
authors.initials: JH
authors.lastname: Park
authors.forename: Woong-Kyo
authors.initials: WK
authors.lastname: Jeong
authors.forename: Jin-Hyuck
authors.initials: JH
authors.lastname: Lee
authors.forename: Jae-Jin
authors.initials: JJ
authors.lastname: Cho
authors.forename: Dae-Hee
authors.initials: DH
authors.lastname: Lee
mesh_terms: D000293:Adolescent; D000328:Adult; D016118:Anterior Cruciate Ligament / Q000601:surgery; D000070598:Anterior Cruciate Ligament Injuries; D059549:Anterior Cruciate Ligament Reconstruction; D005260:Female; D006801:Humans; D007718:Knee Injuries / Q000503:physiopathology* / Q000601:surgery*; D008297:Male; D008592:Menisci, Tibial / Q000601:surgery; D008875:Middle Aged; D053580:Muscle Strength; D004856:Postural Balance; D012421:Rupture; D000070600:Tibial Meniscus Injuries; D055815:Young Adult
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