The relationships between coronal plane alignments and patient-reported outcomes following high tibial osteotomy : a systematic review

Tawy, G ORCID:, Shahbaz, H, McNicholas, M and Biant, LC 2021, 'The relationships between coronal plane alignments and patient-reported outcomes following high tibial osteotomy : a systematic review' , Cartilage .

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Objective This systematic review aimed to determine whether coronal angular corrections correlate with patient reported outcomes following valgus-producing high tibial osteotomy (HTO). Design Ovid MEDLINE, Embase, and Web of Science were systematically searched. Studies that reported hip-knee-ankle angles (HKA) or femorotibial angles (FTA), and the Oxford Knee Score (OKS), visual analogue scale (VAS) score, Knee Injury and Osteoarthritis Outcome Score (KOOS), or EQ-5D before and after valgus-producing HTO were eligible. Correlation analyses were performed where appropriate to investigate the relationships between variables. PROSPERO ID: CRD42019135467. Results This study included 39 articles including 50 cohorts. VAS was reported in 22 studies, OKS in 9, KOOS in 12 and EQ-5D in 2. The HKA angle was corrected from 7.1° ± 1.7° varus to 2.3° ± 1.7° valgus at final follow-up. The FTA changed from 3.0° ± 2.0° varus to 7.7° ± 1.3° valgus. Outcome scores improved with clinical and statistical significance postoperatively. Spearman correlations for nonparametric data revealed greater changes in knee alignment were moderately associated with larger improvements in VAS scores ( r = 0.50). Furthermore, those who experienced greater changes in alignment showed larger improvements in the KOOS Activity and Quality of Life domains ( r = 0.72 and r = 0.51, respectively). Conclusion On average, patients did not achieve the “ideal correction” of 3° to 6° valgus postoperatively. Nevertheless, statistical and clinical improvements in patient-reported outcome measure scores were consistently reported. This suggests that the “ideal correction” may be more flexible than 3° to 6°.

Item Type: Article
Additional Information: ** From Crossref journal articles via Jisc Publications Router **Journal IDs: pissn 1947-6035; eissn 1947-6043 **History: issued 22-04-2021; published_online 22-04-2021
Schools: Schools > School of Health and Society > Centre for Health Sciences Research
Journal or Publication Title: Cartilage
Publisher: SAGE Publications
ISSN: 1947-6035
Related URLs:
SWORD Depositor: Publications Router
Depositing User: Publications Router
Date Deposited: 04 May 2021 13:11
Last Modified: 28 Aug 2021 10:48

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