Comparative analysis of quadriceps and hamstrings strength in knee osteoarthritis before and after total knee arthroplasty: a cross-sectional study.

Autor: Cavanellas NT; Instituto Nacional de Traumatologia e Ortopedia, Laboratório de Pesquisa Neuromuscular, Rio de Janeiro, RJ, Brazil., Cossich VRA; Instituto Nacional de Traumatologia e Ortopedia, Laboratório de Pesquisa Neuromuscular, Rio de Janeiro, RJ, Brazil., Nicoliche EB; Instituto Nacional de Traumatologia e Ortopedia, Laboratório de Pesquisa Neuromuscular, Rio de Janeiro, RJ, Brazil., Martins MB; Instituto Nacional de Traumatologia e Ortopedia, Laboratório de Pesquisa Neuromuscular, Rio de Janeiro, RJ, Brazil., Sousa EB; Instituto Nacional de Traumatologia e Ortopedia, Laboratório de Pesquisa Neuromuscular, Rio de Janeiro, RJ, Brazil., Salles JI; Instituto Nacional de Traumatologia e Ortopedia, Laboratório de Pesquisa Neuromuscular, Rio de Janeiro, RJ, Brazil.
Jazyk: angličtina
Zdroj: Revista brasileira de ortopedia [Rev Bras Ortop] 2018 Feb 23; Vol. 53 (2), pp. 158-164. Date of Electronic Publication: 2018 Feb 23 (Print Publication: 2018).
DOI: 10.1016/j.rboe.2018.02.009
Abstrakt: Objective: Compare the maximal isokinetic muscle strength of knee extensor and flexor muscles between patients with knee osteoarthritis and patients submitted to total knee arthroplasty.
Methods: Volunteers were divided into five groups ( n  = 20): Control; Ahlbäck I and II; Ahlbäck IV; six months after total knee arthroplasty; 12 months after total knee arthroplasty. An isokinetic knee strength evaluation was conducted for the quadriceps and hamstrings at 60°/s.
Results: Significant differences in the peak torque of the quadriceps and hamstrings were found among the groups ( p  < 0.001). The Ahlbäck IV, six-month, and 12-month postoperative groups demonstrated lower values when compared to the Control and Ahlbäck I and II groups. When percentage values were compared to the Control group, mean differences ranged from 7% to 41%.
Conclusion: Patients with healthy knees or early stage osteoarthritis have higher quadriceps and hamstrings strengths than those with a more advanced stage of the disease, even after knee replacement. These findings suggest that the traditional rehabilitation programs do not recover strength to levels observed in individuals without knee osteoarthritis.
Databáze: MEDLINE
Externí odkaz: