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Cartilage Status, Rather Than Chronologic Age, Determines the Outcomes of Open Wedge High Tibial Osteotomy: A Cartilage StatuseMatched Cohort Study

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Abstract
Purpose: To evaluate the true effects of chronologic age on the clinical and radiologic outcomes of open wedge high tibial
osteotomy (OWHTO) in a sample of patients who had been matched according to cartilage status in the medial and lateral
compartments. Methods: The records of 107 OWHTO cases were reviewed. To evaluate potential differences in the
outcomes according to age, the subjects were divided into 2 groups by the median age: older group and younger group.
The Hospital for Special Surgery scores and Knee Society objective and functional scores before surgery and at the latest
follow-up were compared between the groups. Then, the subjects in each group were matched 1:1 according to cartilage
status in the medial and lateral compartments, which had been evaluated during arthroscopy prior to the osteotomy. The
clinical scores were compared between the matched groups. The change in the medial joint space width (DJSW) from 6 to
12 months postoperatively to the latest follow-up was also compared before and after matching. Results: With a median
age of 55 years, 44 and 63 cases were allocated into the older and younger groups, respectively. Prior to cartilage status
matching, the latest Hospital for Special Surgery and Knee Society functional scores were significantly higher in the older
group (P ¼ .042 and P ¼ .025, respectively). After matching, each group included 41 cases, and the differences in these
clinical scores were no longer significant (P ¼ .164 and P ¼ .165, respectively). No difference in DJSW was observed
between the groups, regardless of matching status (P ¼ .901 before matching, P ¼ .979 after matching). Conclusions: The
clinical outcomes of OWHTO were affected by cartilage status, rather than by the chronologic age itself. No difference was
observed in the radiologic outcome (DJSW) with respect to age. OWHTO should not be waived in treating elderly patients
without highly advanced cartilage degeneration simply because of their chronologic ages. Level of Evidence: Level III,
retrospective cohort study.
Author(s)
김종민빈성일송주호이범식
Issued Date
2021
Type
Article
Keyword
AnalysisOsteotomy
DOI
10.1016/j.arthro.2021.03.075
URI
https://oak.ulsan.ac.kr/handle/2021.oak/8681
https://ulsan-primo.hosted.exlibrisgroup.com/primo-explore/fulldisplay?docid=TN_cdi_proquest_miscellaneous_2518545978&context=PC&vid=ULSAN&lang=ko_KR&search_scope=default_scope&adaptor=primo_central_multiple_fe&tab=default_tab&query=any,contains,Cartilage%20Status,%20Rather%20Than%20Chronologic%20Age,%20Determines%20the%20Outcomes%20of%20Open%20Wedge%20High%20Tibial%20Osteotomy:%20A%20Cartilage%20StatuseMatched%20Cohort%20Study&offset=0&pcAvailability=true
Publisher
ARTHROSCOPY-THE JOURNAL OF ARTHROSCOPIC AND RELATED SURGERY
Location
미국
Language
영어
ISSN
0749-8063
Citation Volume
37
Citation Number
9
Citation Start Page
2915
Citation End Page
2922
Appears in Collections:
Medicine > Medicine
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