Changes in shoulder muscle size and activity following treatment for breast cancer.

摘要: Morbidity of the shoulder after breast cancer is a well-known phenomenon. MRI studies have shown muscle morbidity in cervical and prostate cancer. In clinical observations patient reports include number muscles acting at shoulder. Several these lie field surgery radiotherapy. Timed interaction between that stabilise those as prime movers essential to achieve smooth scapulohumeral rthythm during functional elevation arm. Seventy-four women treated for unilateral carcinoma were included study. All patients filled out Shoulder Pain Disability Index (SPADI). EMG activity four was recorded scaption on affected unaffected side. Muscle cross sectional area signal intensity determined from scans. The association covariates using multiple linear regression techniques. Three 4 side demonstrated significantly less activity, particularly when lowering Upper trapezius greatest loss activity. Decreased both upper rhomboid associated with an increase SPADI score increased time since surgery. Pectoralis major minor smaller Muscles long term are pain disability yet not direct or Primary shortening secondary may be producing movement disorder similar ‘Dropped Syndrome’. Exercise programmes should aim only range but also posture correction education potential long-term effects.