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The weight-bearing scanogram technique provides better coronal limb alignment than the navigation technique in open high tibial osteotomy.
MedLine Citation:
PMID:  23041300     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
BACKGROUND: Successful outcomes following high tibial osteotomy (HTO) require precise realignment of the mechanical axis of the lower extremity. The present study investigated whether the weight-bearing limb scanogram (WBS) technique provided a more accurate mechanical axis realignment than the navigation technique in open high tibial osteotomy (OHTO). METHODS: This prospective study involved 80 knees (78 patients) undergoing OHTO. The WBS technique was used in 40 knees and the navigation technique in 40 knees. Each technique was performed by a different surgeon in a different hospital. Postoperative coronal limb alignment was assessed using the weight-bearing line (WBL) ratio on full-length standing hip-to-ankle radiographs. RESULTS: We found that the mean postoperative WBL ratio was greater in the WBS compared to the navigation group (p=0.001), and hence the ratio for the WBS group was closer to the ratio target of 62%. There was a greater proportion of WBL ratio outliers in the navigation group than the WBS group (25% vs. 10%, p=0.034). CONCLUSION: We conclude that the WBS technique was more accurate than the navigation technique for restoration of coronal leg alignment in OHTO. LEVEL OF EVIDENCE: Level II.
Authors:
Dae-Hee Lee; Seoung-Bum Han; Kwang-Jun Oh; Jun Seop Lee; Jae-Ho Kwon; Jong-In Kim; Smarajit Patnaik; Gautam M Shetty; Kyung-Wook Nha
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-10-4
Journal Detail:
Title:  The Knee     Volume:  -     ISSN:  1873-5800     ISO Abbreviation:  Knee     Publication Date:  2012 Oct 
Date Detail:
Created Date:  2012-10-8     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9430798     Medline TA:  Knee     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2012 Elsevier B.V. All rights reserved.
Affiliation:
Department of Orthopaedic Surgery, Inje University, Ilsanpaik Hospital, Ilsan, Korea; Department of Orthopaedic Surgery, Korea University, Anam Hospital, Seoul, Korea.
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