Radical cure of pilonidal sinus by a transposition rhomboid flap

A new operation for pilonidal sinus is described. This utilizes a rhomboid transposition flap to cover the defect left after radical excision. The results show healing by first intention in 29 out of 30 patients. No patient remained in hospital for more than ten days. Minor infection took place in five cases and major infection in one case. Patients have been followed for up to three years. No recurrence has yet been encountered. The reasons for the success of this operation are discussed.