| The reliability of navigation-guided gap technique in total knee arthroplasty. | |
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MedLine Citation:
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PMID: 19298036 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The OrthoPilot TKA navigation system (B. Braun Aesculap, Tuttlingen, Germany) offers software to optimize soft tissue balance using gap balance techniques. However, there are no studies on the reliability of the navigation-guided gap technique. The goal of this study is to establish the reliability of the navigation-guided gap technique. The investigators measured flexion and extension gap in the medial and lateral sides of the knee joint after bone resection to evaluate the reliability of navigation-guided soft tissue balancing. Gap data from 100 cases of navigation-guided total knee arthroplasty were analyzed. We defined trapezoidal gap (unsatisfactory soft tissue balance) as a gap difference < 3 mm between the medial and lateral sides in extension and a 5 mm difference in 90 degrees of flexion. Furthermore, gap difference between flexion and extension greater than 3 mm on the medial side and 5 mm on the lateral side was also considered a trapezoidal gap. Among 100 cases, 84 showed rectangular (acceptable) gap, and 16 showed trapezoidal gap. We also evaluated the correlation between clinical results including range of motion and soft tissue balance as well as characteristics of trapezoidal gap. This study suggests that the navigationguided gap technique is a reliable method for optimizing soft tissue balance. |
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Authors:
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Seung-Beom Han; Kyung-Wook Nha; Jung-Ro Yoon; Dae-Hee Lee; In-Jung Chae |
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Publication Detail:
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Type: Clinical Trial; Journal Article |
Journal Detail:
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Title: Orthopedics Volume: 31 ISSN: 1938-2367 ISO Abbreviation: Orthopedics Publication Date: 2008 Oct |
Date Detail:
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Created Date: 2009-03-20 Completed Date: 2009-04-22 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 7806107 Medline TA: Orthopedics Country: United States |
Other Details:
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Languages: eng Pagination: - Citation Subset: IM |
Affiliation:
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Department of Orthopedics, Korea University Medical Center, Korea University College of Medicine, 1261, 5ga, Anamong, Seongbukgu, 136705, Seoul, Korea. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Aged Aged, 80 and over Arthroplasty, Replacement, Knee / instrumentation*, methods* Female Follow-Up Studies Humans Knee Prosthesis* Male Middle Aged Osteoarthritis, Knee / pathology*, surgery* Recovery of Function* Reproducibility of Results Sensitivity and Specificity Surgery, Computer-Assisted / methods* |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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