Stefano Gumina1, Vittorio Candela2, Daniele Passaretti2, Gianluca Latino3, Teresa Venditto4, Laura Mariani2, Valter Santilli2. 1. Department of Orthopaedics and Traumatology, Shoulder and Elbow Unit, Sapienza University, Rome, Italy. Electronic address: s.gumina@tiscali.it. 2. Department of Orthopaedics and Traumatology, Shoulder and Elbow Unit, Sapienza University, Rome, Italy. 3. Pathophysiology of Nutrition Unit, "Santo Volto" Clinic, Rome, Italy. 4. Physical Medicine and Rehabilitation Unit, Sapienza University, Rome, Italy.
Abstract
BACKGROUND: Rotator cuff tear (RCT) has a multifactorial etiology. We hypothesized that obesity may increase the risk of RCT and influence tear size. MATERIALS AND METHODS: A case-control design study was used. We studied 381 consecutive patients (180 men, 201 women; mean age ± standard deviation, 65.5 ± 8.52 years; range, 43-78 years) who underwent arthroscopic rotator cuff repair. Tear size was determined intraoperatively. The control group included 220 subjects (103 men, 117 women; mean age ± standard deviation, 65.16 ± 7.24 years; range, 42-77 years) with no RCT. Body weight, height, and bicipital, tricipital, subscapularis, and suprailiac skinfolds of all participants were measured to obtain body mass index (BMI) and the percentage of body fat (%BF). For the purposes of the study, the 601 participants were divided into 2 groups by BMI (group A, BMI ≥ 25; group B, BMI < 25). The odds ratios (ORs) were calculated to investigate whether adiposity affects the risk of RCT. Data were stratified according to gender and age. Multiple linear regression analyses were applied to explore the association between obesity and tear size. RESULTS: The highest ORs for both men (OR, 2.49; 95% confidence interval, 1.41-3.90; P = .0037) and women (OR, 2.31; 95% confidence interval, 1.38-3.62; P = .0071) were for individuals with a BMI ≥ 30; 69% (N = 303) of group A and 48% (N = 78) of group B had RCTs. Patients with RCT had a BMI higher than that of subjects with no RCT in both groups (P = .031, group A; P = .02, group B). BMI and %BF significantly increased from patients with a small tear (BMI, 27.85; %BF, 37.63) to those with a massive RCT (BMI, 29.93; %BF, 39.43). Significant differences were found (P = .004; P = .031). CONCLUSIONS: Our results provide evidence that obesity, measured through BMI and %BF, is a significant risk factor for the occurrence and severity of RCT.
BACKGROUND: Rotator cuff tear (RCT) has a multifactorial etiology. We hypothesized that obesity may increase the risk of RCT and influence tear size. MATERIALS AND METHODS: A case-control design study was used. We studied 381 consecutive patients (180 men, 201 women; mean age ± standard deviation, 65.5 ± 8.52 years; range, 43-78 years) who underwent arthroscopic rotator cuff repair. Tear size was determined intraoperatively. The control group included 220 subjects (103 men, 117 women; mean age ± standard deviation, 65.16 ± 7.24 years; range, 42-77 years) with no RCT. Body weight, height, and bicipital, tricipital, subscapularis, and suprailiac skinfolds of all participants were measured to obtain body mass index (BMI) and the percentage of body fat (%BF). For the purposes of the study, the 601 participants were divided into 2 groups by BMI (group A, BMI ≥ 25; group B, BMI < 25). The odds ratios (ORs) were calculated to investigate whether adiposity affects the risk of RCT. Data were stratified according to gender and age. Multiple linear regression analyses were applied to explore the association between obesity and tear size. RESULTS: The highest ORs for both men (OR, 2.49; 95% confidence interval, 1.41-3.90; P = .0037) and women (OR, 2.31; 95% confidence interval, 1.38-3.62; P = .0071) were for individuals with a BMI ≥ 30; 69% (N = 303) of group A and 48% (N = 78) of group B had RCTs. Patients with RCT had a BMI higher than that of subjects with no RCT in both groups (P = .031, group A; P = .02, group B). BMI and %BF significantly increased from patients with a small tear (BMI, 27.85; %BF, 37.63) to those with a massive RCT (BMI, 29.93; %BF, 39.43). Significant differences were found (P = .004; P = .031). CONCLUSIONS: Our results provide evidence that obesity, measured through BMI and %BF, is a significant risk factor for the occurrence and severity of RCT.
Authors: S Gumina; V Candela; L Mariani; T Venditto; C Catalano; S Castellano; V Santilli; G Giannicola; A Castagna Journal: Knee Surg Sports Traumatol Arthrosc Date: 2017-07-13 Impact factor: 4.342
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