Header

UZH-Logo

Maintenance Infos

The influence of obesity and gender on outcome after reversed L-shaped osteotomy for hallux valgus


Wirth, Stephan H; Renner, Niklas; Niehaus, Richard; Farei-Campagna, Jan; Deggeller, Marcel; Scheurer, Fabrice; Palmer, Katie; Jentzsch, Thorsten (2019). The influence of obesity and gender on outcome after reversed L-shaped osteotomy for hallux valgus. BMC Musculoskeletal Disorders, 20(1):450.

Abstract

BACKGROUND

Hallux valgus deformity (HV) affects around every fourth individual, and surgical treatment is performed in every thousandth person. There is an ongoing quest for the best surgical management and reduction of undesirable outcomes. The aim was to explore associations of obesity and gender with radiological and clinical outcome after reversed L-shaped osteotomy (ReveL) for HV.

MATERIALS AND METHODS

This study was carried out in a retrospective cohort design at a single University Hospital in Switzerland between January 2004 and December 2013. It included adult patients treated with ReveL for HV. The primary exposure was body mass index (BMI) at the time of ReveL. The secondary exposure was gender. The primary outcome was radiological relapse of HV (HV angle [HVA] > 15 degrees [°]) at the last follow-up. Secondary outcomes were improvable patient satisfaction, complication, redo surgery, and optional hardware removal. Logistic regression analysis adjusted for confounders.

RESULTS

The median weight, height, and BMI were 66.0 (interquartile range [IQR] 57.0-76.0) kilograms (kg), 1.65 (IQR 1.60-1.71) metres (m), and 24.0 (IQR 21.3-27.8) kg/m$^{2}$. Logistic regression analysis did not show associations of relapse with BMI, independent of age, gender, additional technique, and preoperative HVA (adjusted odds ratio [OR$_{adjusted}$] = 1.10 [95% (%) confidence interval (CI) = 0.70-1.45], p = 0.675). Relapse was 91% more likely in males (OR$_{adjusted}$ = 1.91 [95% CI = 1.19-3.06], p = 0.007). Improvable satisfaction was 79% more likely in males (OR$_{adjusted}$ = 1.79 [CI = 1.04-3.06], p = 0.035). Hardware removal was 47% less likely in males (OR$_{adjusted}$ = 0.53 [95% CI 0.30-0.94], p = 0.029).

CONCLUSIONS

In this study, obesity was not associated with unsatisfactory outcomes after ReveL for HV. This challenges the previous recommendation that preoperative weight loss may be necessary for a successful surgical treatment outcome. Males may be informed about potentially higher associations with unfavourable outcomes. Due to the risk of selection bias and lack of causality, findings may need to be confirmed with clinical trials.

Abstract

BACKGROUND

Hallux valgus deformity (HV) affects around every fourth individual, and surgical treatment is performed in every thousandth person. There is an ongoing quest for the best surgical management and reduction of undesirable outcomes. The aim was to explore associations of obesity and gender with radiological and clinical outcome after reversed L-shaped osteotomy (ReveL) for HV.

MATERIALS AND METHODS

This study was carried out in a retrospective cohort design at a single University Hospital in Switzerland between January 2004 and December 2013. It included adult patients treated with ReveL for HV. The primary exposure was body mass index (BMI) at the time of ReveL. The secondary exposure was gender. The primary outcome was radiological relapse of HV (HV angle [HVA] > 15 degrees [°]) at the last follow-up. Secondary outcomes were improvable patient satisfaction, complication, redo surgery, and optional hardware removal. Logistic regression analysis adjusted for confounders.

RESULTS

The median weight, height, and BMI were 66.0 (interquartile range [IQR] 57.0-76.0) kilograms (kg), 1.65 (IQR 1.60-1.71) metres (m), and 24.0 (IQR 21.3-27.8) kg/m$^{2}$. Logistic regression analysis did not show associations of relapse with BMI, independent of age, gender, additional technique, and preoperative HVA (adjusted odds ratio [OR$_{adjusted}$] = 1.10 [95% (%) confidence interval (CI) = 0.70-1.45], p = 0.675). Relapse was 91% more likely in males (OR$_{adjusted}$ = 1.91 [95% CI = 1.19-3.06], p = 0.007). Improvable satisfaction was 79% more likely in males (OR$_{adjusted}$ = 1.79 [CI = 1.04-3.06], p = 0.035). Hardware removal was 47% less likely in males (OR$_{adjusted}$ = 0.53 [95% CI 0.30-0.94], p = 0.029).

CONCLUSIONS

In this study, obesity was not associated with unsatisfactory outcomes after ReveL for HV. This challenges the previous recommendation that preoperative weight loss may be necessary for a successful surgical treatment outcome. Males may be informed about potentially higher associations with unfavourable outcomes. Due to the risk of selection bias and lack of causality, findings may need to be confirmed with clinical trials.

Statistics

Citations

Dimensions.ai Metrics

Altmetrics

Downloads

6 downloads since deposited on 07 Feb 2020
6 downloads since 12 months
Detailed statistics

Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:04 Faculty of Medicine > Balgrist University Hospital, Swiss Spinal Cord Injury Center
Dewey Decimal Classification:610 Medicine & health
Scopus Subject Areas:Health Sciences > Rheumatology
Health Sciences > Orthopedics and Sports Medicine
Language:English
Date:15 October 2019
Deposited On:07 Feb 2020 13:55
Last Modified:11 May 2020 19:16
Publisher:BioMed Central
ISSN:1471-2474
OA Status:Gold
Free access at:PubMed ID. An embargo period may apply.
Publisher DOI:https://doi.org/10.1186/s12891-019-2823-6
PubMed ID:31615482

Download

Gold Open Access

Download PDF  'The influence of obesity and gender on outcome after reversed L-shaped osteotomy for hallux valgus'.
Preview
Content: Published Version
Filetype: PDF
Size: 535kB
View at publisher
Licence: Creative Commons: Attribution 4.0 International (CC BY 4.0)