Versatility of perforator sparing buttock rotation flap in repair of pressure sores

Abstract

Eleven perforator-sparing gluteal fasciocutaneous rotation flaps were used for coverage of pressure sores in 10 patients with mean age 38.4 years. Nine patients were paraplegic, and one patient was ambulatory. All pressure ulcers were classified as grade 4. The pressure sores were sacral in five patients, unilateral ischial in five patients, and unilateral trochantric in one patient. Seven ulcers were recurrent and four were primary. The flap sizes ranged from 7 × 7 cm to 15 × 13 cm. In a total of 11 flaps, nine flaps included two perforators, one flap included three perforators, and one flap included single perforator. Skin incision is the same as that for the conventional gluteal rotation flap. The flap is elevated subfascially until at least two dominant musculocutaneous perforators of the superior or inferior gluteal arteries are encountered. In the recurrent ischial sores, the inferior part of gluteus maximus was used to fill dead space at the base of the ulcer as a separate muscle flap. Eight of 11 flaps healed uneventfully without complications. Mean follow-up period was 18.6 months (range 37–5 months). The recurrence rate in the same region was 0% during follow-up period. The appearances of pressure sores in other sites occurred in two patients that healed with conservative treatment. There was no major complication such as total flap necrosis. Only minor complications occurred which were treated without surgical intervention. The perforator-sparing gluteal rotation fasciocutaneous flap is a versatile and reliable flap for coverage of all gluteal pressure sores. This is an ideal flap for patients in whom the risk of ulcer recurrence is high as the rerotation is possible in case of recurrence.