Validation and interval scale transformation of the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) in patients undergoing knee arthroplasty, using the Rasch model

Leung, Ying Ying; Thumboo, Julian; Yeo, Seng-Jin; Wylde, Vikki; Tannant, Alan

doi:10.1016/j.ocarto.2022.100322

Cited by 3 publications

(2 citation statements)

References 47 publications

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“…Some authors mention that the analysis of categorical data should be done under the Rasch model; however, in this study the conventional WOMAC scale was used to evaluate the functional improvement of the patients. 23 Data on complications in postoperative TKA patients according to BMI are needed to adequately assess the risk-benefit of TKA in patients with obesity.…”

Section: Discussionmentioning

confidence: 99%

Short-term functional outcomes in patients undergoing primary total knee arthroplasty according to their body mass index

Oropeza-Bonfanti,

Bobadilla-Lescano,

Martinez-Escalante

et al. 2024

Int J Res Orthop

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Background: The impact of an increased body mass index (BMI) in patients with ostheoarthritis who undergo total knee arthroplasty (TKA) remains a controversial variable in terms of risks and benefits. This study aimed to evaluate the influence of BMI in the functional outcomes of patients with ostheoarthritis who underwent TKA. Methods: We followed a cohort of patients who underwent total knee arthroplasty with a primary diagnosis of osteoarthritis. Patients were stratified into 3 groups according to the World Health Organization classification of BMI. We assessed the association between BMI group and functional scores using the Western Ontario and McMaster osteoarthritis index (WOMAC) over the time intervals of pre– and postoperatively at 1 month, 3 months and 1 year. Results: The difference in means between pre-surgical WOMAC and WOMAC at first follow-up according to each BMI group was divided as follows: normal 10.9 (p=0.195), overweight 15.7 (p≤0.001) and obese 20.6 (p≤0.001). Study participants with a higher BMI had worse preoperative WOMAC scores and had greater improvement from baseline to 1 month. After one year of follow-up, participants in all BMI groups had similar WOMAC scores. Conclusions: Patients with obesity who underwent TKA showed greater functional improvement one month after surgery compared to the other BMI groups. Subsequently, it was observed at the end of the 12-month follow-up that all patients, regardless of BMI, had improved functional outcomes, and the magnitude of improvement was similar in all BMI groups.

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Section: Discussionmentioning

confidence: 99%

Short-term functional outcomes in patients undergoing primary total knee arthroplasty according to their body mass index

Oropeza-Bonfanti,

Bobadilla-Lescano,

Martinez-Escalante

et al. 2024

Int J Res Orthop

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“…Clinical outcomes were evaluated using ROM, and Western Ontario McMaster Universities Osteoarthritis Index (WOMAC) [21] was used for evaluating patient reported outcomes. All patients were evaluated preoperatively, 6, and 12 months postoperatively, and annually thereafter.…”

Section: Methodsmentioning

confidence: 99%

Controlled posterior condylar milling technique for unicompartmental knee arthroplasty minimises tibia resection during gap balancing: Short‐term clinical results

Koh,

Lim,

Park

et al. 2024

Knee surg. sports traumatol. arthrosc.

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PurposeThe purpose of this study was to demonstrate the clinical utility of controlled posterior condylar milling (CPCM) in gap balancing while minimally resecting the tibia during fixed‐bearing unicompartmental knee arthroplasty (UKA).MethodsThis study is a retrospective cohort study. Patients who underwent medial UKA for isolated medial compartment osteoarthritis with a minimum follow‐up of 2 years were included. The patients were divided into two groups: the conventional group (n = 56) and the CPCM group (n = 66). In the CPCM group, the proximal tibia was resected at the level of the distal end of the subchondral bone. If the flexion gap was tighter than extension, the posterior condyle was additionally milled to adjust gap tightness. Standing knee X‐ray and scanogram were used to evaluate alignment and tibia resection amount. Range of motion (ROM) and Western Ontario McMaster Universities Osteoarthritis Index (WOMAC) scores were used to evaluate clinical outcomes.ResultsThe CPCM group showed significantly smaller tibia resection (3.6 ± 1.9 mm) compared to the conventional group (5.2 ± 2.7 mm) (p < 0.001). Postoperative ROM (133.0 ± 8.3°, 135.2 ± 7.2°, n.s.) and WOMAC (19.3 ± 13.6, 23.6 ± 17.7, n.s.) were not significantly different between the two groups. Postoperative periprosthetic fractures occurred in two patients in conventional group, while the CPCM group had no periprosthetic fractures.ConclusionThe CPCM technique may be a simple and useful intraoperative technique that can achieve minimal tibia resection and promising clinical outcomes while easily adjusting gap tightness between flexion and extension during medial fixed‐bearing UKA.Level of EvidenceLevel III.

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The influence of pain catastrophizing on pain and function after knee arthroplasty in knee osteoarthritis

Chan,

Saffari,

Wong

et al. 2024

Sci Rep

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Validation and interval scale transformation of the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) in patients undergoing knee arthroplasty, using the Rasch model

Cited by 3 publications

References 47 publications

Short-term functional outcomes in patients undergoing primary total knee arthroplasty according to their body mass index

Short-term functional outcomes in patients undergoing primary total knee arthroplasty according to their body mass index

Controlled posterior condylar milling technique for unicompartmental knee arthroplasty minimises tibia resection during gap balancing: Short‐term clinical results

The influence of pain catastrophizing on pain and function after knee arthroplasty in knee osteoarthritis

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