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BMC Musculoskeletal Disorders

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Open Access 01-12-2022 | Osteoarthrosis | Research

Does obesity affect patient-reported outcomes following total knee arthroplasty?

Authors: Fatemeh Baghbani-Naghadehi, Susan Armijo-Olivo, Carla M. Prado, Leah Gramlich, Linda J. Woodhouse

Published in: BMC Musculoskeletal Disorders | Issue 1/2022

Abstract

Background

There is an existing perception that obesity has a negative impact on complications following total knee arthroplasty (TKA). However, data on the impact of obesity levels on patient-reported outcomes (PROMs) is sparse. We investigated the association between different obesity classes with PROMs among patients who underwent TKA.

Methods

We performed retrospective secondary analyses on data extracted from the total joint replacement data repository (Alberta, Canada) managed by the Alberta Bone and Joint Health Institute (ABJHI). Patients had WOMAC and EQ5D scores measured at baseline in addition to 3 and/or 12 months following TKA. Patients were stratified according to the World Health Organization (WHO) classification, into five body mass index (BMI) groups of normal, overweight, BMI class I, BMI class II, and BMI class III. The association between BMI and mean changes in WOMAC subscales (pain, function, and stiffness) and EQ-5D-5L index over the time intervals of baseline to 3 months and 3 to 12 months following TKA was assessed. Linear mixed-effects models were used, and the models were adjusted for age, sex, length of surgery, comorbidities, year of surgery, and geographical zone where the surgery was performed.

Results

Mean age was 65.5 years (SD = 8.7). Postoperatively, there was a significant improvement (p < 0.001) in WOMAC subscales of patient-reported pain, function, and stiffness, as well as EQ-5D-5L regardless of BMI group. Although, patients in BMI class II and class III reported significantly improved pain 3 months after TKA compared to those with normal BMI, all BMI groups attained similar level of pain reduction at 12 months after TKA. The greatest improvement in all WOMAC subscales, as well as EQ5D index, occurred between baseline and 3 months (adjusted p < 0.0001).

Conclusion

The findings indicate that patients reported improved pain, function, and stiffness across all BMI groups following TKA. Patients with BMI classified as obese reported similar benefits to those with BMI classified as normal weight. These results may help health care providers to discuss expectations regarding the TKA recovery in terms of pain, function, and quality of life improvements with their TKA candidates.

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Title: Does obesity affect patient-reported outcomes following total knee arthroplasty?
Authors: Fatemeh Baghbani-Naghadehi
Susan Armijo-Olivo
Carla M. Prado
Leah Gramlich
Linda J. Woodhouse
Publication date: 01-12-2022
Publisher: BioMed Central
Keywords: Osteoarthrosis
Obesity
Obesity
Osteoarthrosis
Published in: BMC Musculoskeletal Disorders / Issue 1/2022
Electronic ISSN: 1471-2474
DOI: https://doi.org/10.1186/s12891-022-04997-4

Keynote webinar | Spotlight on medication adherence

Springer Medicine

Does obesity affect patient-reported outcomes following total knee arthroplasty?

Abstract

Background

Methods

Results

Conclusion

Keynote webinar | Spotlight on medication adherence

Springer Medicine

Abstract

Background

Methods

Results

Conclusion

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