Breast cancer is the most prevalent malignancy among women. Conservative and operative treatment methods are associated with a risk of side effects pertaining to the shoulder complex. The surgery complications including chronic pain, upper limb and chest lymphedema, range of motion limitations, and motor control deficiencies may lead to upper limb function impairment and affect the quality of life negatively. Twenty-three women were examined in the tested group and twenty-two women in the control group. The motor control was assessed with dissociation tests as defined by Comerford and Mottram. In order to assess patient-perceived upper limb disability, the Disabilities of the Arm, Shoulder and Hand (DASH) questionnaire was used. The test of glenohumeral (GH) abduction control in frontal plane and in scapular plane and medial rotation control outcomes were found to be statistically significant. It pertains to both: Comparison between groups and analysis within the tested group-body sides comparison. The DASH questionnaire results analysis indicates that there was a higher degree of subjectively perceived disability of upper limb in the tested group. Surgical interventions in the breast cancer treatment and other medical procedures affect the level of motor control and perceived disability of upper limb negatively in this group of patients. Movement faults are statistically more prevalent in the tested group. Movement faults are more prevalent on the operated side in the tested group.
Keywords: breast cancer; carcinoma; functional assessment; motor control; shoulder complex.