XXXX and articular cartilage damage in the dislocated knee.

@entity1 @entity937 @entity75 @entity16 @entity3031 @entity130
PURPOSE: Knee dislocations can cause significant damage to intra-articular knee structures, but currently there are limited data reporting articular cartilage and @entity130 in this setting. The purpose of this study is to (1) report the rate of concomitant intra-articular injuries at the time of multiligament reconstruction for @entity3031 , (2) determine whether the pattern of @entity130 is associated with the presence of chondral and @entity130 , and (3) assess the relationship between timing of surgery and incidence of chondral and @entity130 . METHODS: The records of @entity1 who sustained a @entity3031 between 1992 and 2013 were retrospectively reviewed. @entity1 included for further review had a PCL-based multiligament knee injury or a minimum of three disrupted ligaments, both indicative of @entity3031 . @entity1 demographics, @entity130 patterns, @entity937 and @entity130 at arthroscopy, and interval from injury to surgery were recorded. Early surgical intervention was defined as <3  months, delayed was between 3 and 12  months, and chronic was >12  months. Data analysis compared @entity130 pattern with chondral and @entity130 , as well as the rates of @entity130 by timing of surgery. RESULTS: One-hundred and twenty-one @entity1 (122 knees) were included (93 males, 28 females) with a median age at time of surgery of 31  years (range 15-62). Ninety-three knees (76  %) had associated chondral or @entity130 . Sixty-seven knees (55  %) presented with @entity937 (26 isolated medial, 27 isolated lateral, and 14 combined medial/lateral), while 52 knees (48  %) had @entity16 , most commonly in the medial compartment. Schenck classification as well as side of injury did not demonstrate consistent relationships with @entity130 . A higher incidence of damage to the lateral femoral condyle (20  % vs 3  %; p  =  0.02), lateral tibial plateau (20  % vs 2  %; p  <  0.01), and patella (40  % vs 13  %; p  =  0.01) was found in the chronic group compared to the early group. The chronic group contained significantly more @entity1 with bicompartmental and @entity75 (25  % vs 6  %; p  =  0.03 and 10  % vs 0  %; p  =  0.02, respectively). CONCLUSION: @entity937 and @entity16 occur frequently in @entity1 with a @entity3031 . A longer interval from injury to surgical reconstruction is associated with higher rates of articular cartilage lesions, especially in multiple compartments. LEVEL OF EVIDENCE: IV.
