title: Effect of muscle strength and pain on hand function in patients with trapeziometacarpal osteoarthritis. A cross-sectional study.
abstract: OBJECTIVE
  To assess the relationship between muscle strength (Jama), and pain (VAS) levels with hand function (DASH) in patients with trapeziometarcapal osteoarthritis. Cross-sectional study.
  
  
  METHODS
  Sample of 72 patients with osteoarthritis stage 2-3 (Eaton) and trapeziometacarpal osteoarthritis. Patients were recruited when they came to the Hand Surgery Unit.
  
  
  METHODS
  Grip strength, pinch, pain and hand function were measured, and correlation and regression coefficients between them were obtained.
  
  
  RESULTS
  For function, the most significant model (R(2)=0.83) included pain and strength. But it is tip to tip pinch force which has a stronger relationship with DASH (Standardized B: -57) questionnaire. Pain also influenced strength measured with the dynamometer but it was tip to tip pinch force that was the most affected.
  
  
  CONCLUSIONS
  Findings confirm that there is a significant correlation between function referred by the patient and variables that can be measured in the clinic such as grip strength and pinch. The correlation between pain intensity and function was also significant, but tip to tip pinch strength had the greatest impact on the function.
authors: Universidad de Málaga, Centro Tecan, Clínica de la mano, Málaga, España. Electronic address: cantero@centrotecan.com.
authors: Raquel
authors: R
authors: Cantero-Téllez
authors: Campus Universitario Teatinos, Universidad de Málaga, Málaga, España.
authors: Rocío
authors: R
authors: Martín-Valero
authors: Departamento de Fisioterapia, Universidad de Málaga, Málaga, España.
authors: Antonio
authors: A
authors: Cuesta-Vargas
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D052737:Carpometacarpal Joints; D003430:Cross-Sectional Studies; D005260:Female; D006225:Hand / Q000503:physiopathology*; D018737:Hand Strength; D006305:Health Status Indicators; D006801:Humans; D008297:Male; D008875:Middle Aged; D053581:Muscle Strength Dynamometer; D059352:Musculoskeletal Pain / Q000175:diagnosis / Q000209:etiology / Q000503:physiopathology*; D010003:Osteoarthritis / Q000503:physiopathology*; D010147:Pain Measurement; D052581:Pinch Strength
keywords: Artrosis trapecio-metacarpiana; Dolor del pulgar; First finger pain; Función; Function; Rizarthrosis; Rizartrosis; Trapeziometacarpal osteoarthritis