| Does the severity of preoperative varus deformity influence postoperative alignment in both conventional and computer-assisted total knee arthroplasty? | |
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MedLine Citation:
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PMID: 23108683 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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PURPOSE: The postoperative alignment was compared according to the severity of preoperative varus deformity in computer-assisted and conventional total knee arthroplasty (CAS-TKA). METHODS: The study reviewed 127 consecutive CAS-TKA and 236 conventional TKA, retrospectively. In CAS-TKA, 77 knees with a varus deformity ≤15.0° were classified in group CAS-A and 50 knees with a varus deformity >15.0° were classified in group CAS-B. In conventional groups, 204 knees with a varus deformity ≤15.0 were classified in group Conventional-A and 32 knees with a varus deformity >15.0° were classified in group Conventional-B. The postoperative mechanical axis (MA) was compared among groups CAS-A, CAS-B, Conventional-A and Conventional-B. RESULTS: The average postoperative MA was 0.7° varus in group CAS-A, 2.8° varus in group CAS-B, 1.1° varus in group Conventional-A and 3.2° varus in group Conventional-B (p < 0.001). The postoperative MA was within 3° in 81.8, 62.0, 58.8 and 37.5 % of group CAS-A, CAS-B, Conventional-A and Conventional-B, respectively. CONCLUSIONS: The severity of preoperative varus deformity influences postoperative alignment despite using CAS. More careful correction of the alignment is required, especially in TKA performed on patients with a greater varus deformity. LEVEL OF EVIDENCE: III. |
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Authors:
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Dae Kyung Bae; Sang Jun Song; Dong Beom Heo; Dae Hyun Tak |
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Publication Detail:
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Type: JOURNAL ARTICLE Date: 2012-10-30 |
Journal Detail:
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Title: Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA Volume: - ISSN: 1433-7347 ISO Abbreviation: Knee Surg Sports Traumatol Arthrosc Publication Date: 2012 Oct |
Date Detail:
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Created Date: 2012-10-30 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 9314730 Medline TA: Knee Surg Sports Traumatol Arthrosc Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Affiliation:
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Department of Orthopaedic Surgery, College of Medicine, Kyung Hee University, 26 Kyunghee-daero, Dongdaemun-gu, Seoul, 130-702, Korea. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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