Author/Authors :
angEli Malavolta, duardo Universidade de São Paulo - Hospital das Clínicas - Faculdade de Medicina - Instituto de Ortopedia e Traumatologia - Grupo de Ombro e Cotovelo, São Paulo, SP, Brazil , Yulin PriEto chang, vErônica Universidade de São Paulo - Hospital das Clínicas - Faculdade de Medicina - Instituto de Ortopedia e Traumatologia - Grupo de Ombro e Cotovelo, São Paulo, SP, Brazil , traballibozzi Pinto dE castro, MarcEllo Universidade de São Paulo - Hospital das Clínicas - Faculdade de Medicina - Instituto de Ortopedia e Traumatologia - Grupo de Ombro e Cotovelo, São Paulo, SP, Brazil , brandao andradE-silva, FErnando Universidade de São Paulo - Hospital das Clínicas - Faculdade de Medicina - Instituto de Ortopedia e Traumatologia - Grupo de Ombro e Cotovelo, São Paulo, SP, Brazil , hEnriquE assunção, JorgE Universidade de São Paulo - Hospital das Clínicas - Faculdade de Medicina - Instituto de Ortopedia e Traumatologia - Grupo de Ombro e Cotovelo, São Paulo, SP, Brazil , EMilio conForto gracitElli, Mauro Universidade de São Paulo - Hospital das Clínicas - Faculdade de Medicina - Instituto de Ortopedia e Traumatologia - Grupo de Ombro e Cotovelo, São Paulo, SP, Brazil , aMado FErrEira nEto, arnaldo Universidade de São Paulo - Hospital das Clínicas - Faculdade de Medicina - Instituto de Ortopedia e Traumatologia - Grupo de Ombro e Cotovelo, São Paulo, SP, Brazil
Abstract :
Objective: To evaluate the influence of partial- and full-thickness upper third subscapularis tendon tears on the functional scores of patients undergoing arthroscopic rotator cuff repair. Methods: Patients who underwent arthroscopic rotator cuff repair were divided into three groups according to the subscapularis tendon condition: intact, partial-thickness tear, or full-thickness upper third tear. Functional scores were compared among groups. Second, the influence of biceps and infraspinatus tears on the scores was tested using multivariate regression analysis. Results: We evaluated 307 shoulders in 297 patients. Full-thickness upper third subscapularis tears presented significantly worse scores than intact tendons. Partial-thickness tears had scores that did not differ significantly from those of the other groups. Patients with full-thickness upper third tears presented a greater rate of injured and unstable biceps tendons. The multivariate analysis showed that biceps and infra-spinatus tendon tears did not influence the scores or the intergroup comparison. Conclusion: Full-thickness upper third subscapularis tendon tears presented worse functional scores than intact sub-scapularis tendons among patients undergoing posterosuperior rotator cuff repair. Patients with full-thickness subscapularis tears were more likely to suffer biceps tears, but this fact did not influence functional scores. Level of Evidence I; Clinical randomized trial
