From: Obesity and long term functional outcomes following elective total hip replacement
Study | N Follow-up | Sample | Surgical Type & Components | Results |
---|---|---|---|---|
Braeken et al [2] (1997) | 193 to 1 year; Retrospective Mean age 63.5 years | 61% were women BMI was found for each patient | Surgical components not described; surgical type not described: data obtained from medical charts and mailings | While high BMI was related to high postoperative pain levels, BMI itself was not a strong contributor to the regression model for WOMAC functional score (parameter estimate value of 0.092). |
Haverkamp et al [14] (2008) | 411 Mean out to 20 years; Retrospective | 69% were women; BMI groups were <25, ≥ 25 and >30 kg/m2 Mean ages were 64–66 years among groups | Anterolateral approach; Weber rotation THA System (Allopro) with cement; | HHS scores were progressively lower for higher BMI brackets at maximum follow-up time (91.6, 86.8 and 83.7 points; p = 0.02); revision rates were similar among BMI complication rates and groups |
LeDuff et al [7] (2007) | 770 2–10 years; Retrospective | 17% were women BMI groups were < or ≥ 30 kg/m2 Mean age 49 years | Posterior approach; 30-37% of metaphyseal stem femoral components were cemented; Conserve Plus hip resurfacing prostheses were used | By 6.2 years of follow-up, UCLA scores for function and activity werelower in the obese patients than non-obese patients by ~8%; SF-12 physical component scores were also lower in the obese group (49.3 vs 51.4 points; p = 0.013); 5 year survivorship was 90.6% and 98.6% in patients with BMI <25 and 30 kg/m2, respectively. |
McLaughlin & Lee [33] | 285 10–18 years; Retrospective | 51% were women; BMI groups were <30 or ≥30 kg/m2 Mean ages 54–57 years | Uncemented T-tap acetabular components (Biomet Inc.) and Taperloc femoral points in obese patients and from 53 to components were used by one surgeon; all were posterolateral approaches | By follow-up HHS ↑ from 52 to 89 89 points in non-obese patients, with no difference between groups; no differences in revision rates or complications occurred between groups |
Yeung et al [24] (2010) | 2,026 6.3 year mean follow-up; Retrospective | 53% were female; BMI groups were <30 or ≥30 kg/m2 | Cementless procedures used; components and approached were not described | HHS scores were lower for the obese compared to the non-obese patients at follow-up (89.9 vs 93.2 points; p < 0.001); HHS scores for function, activities, hip range of motion were lower in the obese group (all p < 0.05); survival rates were for the implants were similar at year 11 (95-96%) |