Mechanical Stimulation on Pain Level and Functional Discomfort After Breast Cancer Surgery

Inclusion Criteria: * Age \> 18 years * Patient who had total mastectomy for a breast cancer or pre-cancerous lesions * Associated with axillary dissection or removal of the sentinel lymph nodes * Presenting with functional discomfort and/or pain at the control consultation, 3 weeks after the mastectomy and justifying the prescription of physiotherapy * Possibility to be treated by a physiotherapist who can carry out both techniques and accepts to perform either one of the techniques according to the randomized allocation of the treatment * Patient covered by the French social security regime * Signed and informed consent Exclusion Criteria: * Immediate breast reconstruction * Total bilateral mastectomy * Contraindication to mechanical stimulation technique * Patient who are planning to move houses in the next 6 months * Patients under guardianship