IN THE ARMY there was an excellent opportunity to develop a satisfactory curative operation for the treatment of pilonidal cysts and sinuses. A satisfactory method was developed only after several procedures had first been tried which in 1942, when this work was begun, were considered adequate. The purpose of this paper is to compare the early and the late results obtained from various operative procedures.
The following operations were employed:
A. Block excision of the cyst and its ramifications followed by packing the wound open with petrolatum gauze and later with packs of diluted solution of sodium hypochlorite. The wounds healed by secondary intention.
B. Block excision followed by petrolatum gauze packing, packing with diluted solution of sodium hypochlorite and secondary skin grafts after a clean granulating area was established.
C. Block excision, with undermining and closure by means of retention sutures placed in the buttocks, with no suture material