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Does Cast Immobilization Contribute to Posterior Stability After Posterior Cruciate Ligament Reconstruction?
MedLine Citation:
PMID:  23351730     Owner:  NLM     Status:  Publisher    
PURPOSE: The purpose of this study was to confirm the contribution of long leg cast immobilization to posterior stability after reconstruction of isolated posterior cruciate ligament (PCL) injuries. METHODS: Of 84 patients who underwent arthroscopic PCL reconstruction between November 2006 and December 2009, 44 patients were randomly assigned to 2 groups and analyzed prospectively. For 22 patients (the cast group), long leg cast immobilization was applied until postoperative week 5 and then a 0° locking brace was worn until week 12. Full weight bearing was allowed immediately after operation. For the other 22 patients (the brace group), only a 0° locking brace was applied until postoperative week 12 without cast immobilization. Range of motion (ROM), clinical scores, Telos device (Telos, Marburg, Germany) posterior stress radiographic assessment results and International Knee Documentation Committee (IKDC) grades of both groups were analyzed preoperatively and at postoperative years 1 and 2. RESULTS: The mean preoperative side-to-side difference on Telos posterior stress radiographs was 11.3 ± 2.5 mm in the cast group and 12.7 ± 2.1 mm in the brace group, revealing no differences between the 2 groups (P = .743), but postoperatively the mean difference measured 2.5 ± 1.9 mm and 4.8 ± 2.4 mm, respectively, showing a significantly smaller difference in the cast group (P = .004); the improvement was 8.8 mm and 7.9 mm, respectively, and was statistically significant (P = .021). Preoperative IKDC grades were not different between the 2 groups (P > .05), but 2 years postoperatively, the cast group showed a significantly better distribution of grades (P = .012). The mean ROM, Lysholm scores, IKDC subjective scores, and Tegner scores 2 years postoperatively were not significantly different between the 2 groups (P > .05). CONCLUSIONS: The patients immobilized with long leg casts until 5 weeks after PCL reconstruction showed significantly better results in Telos posterior stress radiographs and distribution of IKDC grades 2 years postoperatively and did not show limited ROM when compared with the patients who wore braces only. However, IKDC subjective scores were not found to be different between the 2 groups. LEVEL OF EVIDENCE: Level I, prospective randomized comparative study.
Kyoung Ho Yoon; Sung Woo Park; Sang Hak Lee; Man Ho Kim; Soo Yeon Park; Hoon Oh
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2013-1-23
Journal Detail:
Title:  Arthroscopy : the journal of arthroscopic & related surgery : official publication of the Arthroscopy Association of North America and the International Arthroscopy Association     Volume:  -     ISSN:  1526-3231     ISO Abbreviation:  Arthroscopy     Publication Date:  2013 Jan 
Date Detail:
Created Date:  2013-1-28     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8506498     Medline TA:  Arthroscopy     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2013 Arthroscopy Association of North America. Published by Elsevier Inc. All rights reserved.
Department of Orthopaedic Surgery, School of Medicine, Kyung Hee University, Seoul, South Korea.
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