The weight-bearing scanogram technique provides better coronal limb alignment than the navigation technique in open high tibial osteotomy
- Authors
- Lee, Dae-Hee; Han, Seoung-Bum; Oh, Kwang-Jun; Lee, Jun Seop; Kwon, Jae-Ho; Kim, Jong-In; Patnaik, Smarajit; Shetty, Gautam M.; Nha, Kyung-Wook
- Issue Date
- 3월-2014
- Publisher
- ELSEVIER SCIENCE BV
- Keywords
- Weight-bearing limb scanography; Navigation; Open high tibial osteotomy; Accuracy
- Citation
- KNEE, v.21, no.2, pp.451 - 455
- Indexed
- SCIE
SCOPUS
- Journal Title
- KNEE
- Volume
- 21
- Number
- 2
- Start Page
- 451
- End Page
- 455
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/99072
- DOI
- 10.1016/j.knee.2012.09.003
- ISSN
- 0968-0160
- Abstract
- 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. (c) 2012 Elsevier B.V. All rights reserved.
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