Objective: To investigate the feasibility and clinical effects of using free perforator propeller myocutaneous flap from buttock in repairing complex wounds in the buttock with deep dead cavity. Methods: A retrospective observational study was conducted. From June 2020 to June 2022, 9 patients with complex wounds in the buttock with deep dead cavity who met the inclusion criteria were admitted to Lanzhou University Second Hospital, including 6 males and 3 females, aged 26 to 62 years, with original wound area ranging from 4.0 cm×3.0 cm to 8.0 cm×7.0 cm and dead cavity depth of 7 to 11 cm. All the wounds were repaired with free perforator propeller myocutaneous flap from buttock, with flap area of 6.0 cm×2.5 cm to 13.0 cm×7.0 cm and muscle flap length of 6 to 11 cm. All the wounds in the donor area were closed and sutured directly. Postoperative myocutaneous flap survival, complications, as well as donor and recipient wound healing were observed, and the shape of donor and recipient areas were followed up. Results: Congestion occurred under the myocutaneous flap of one patient due to poor drainage on post surgery day 2, which was healed after 15 days of drainage and dressing change. The myocutaneous flaps of other patients survived successfully after surgery. The wounds in the donor and recipient areas were all well healed. During the follow-up of 3 to 10 months, the donor and recipient areas were full in shape, with little difference from the healthy side, and were able to bear pressure. Conclusions: The free perforator propeller myocutaneous flap from buttock can repair the deep dead cavity and surface wounds at the same time. The use of this myocutaneous flap in repairing complex wounds in the buttock with deep dead cavity results in minimal damage to the donor area, allows pressure-bearing of the donor and recipient areas after surgery, and ensures a full buttock shape.
目的： 探讨利用臀部自由穿支螺旋桨肌皮瓣修复合并深部死腔的臀部复杂性创面的可行性及临床效果。 方法： 采用回顾性观察性研究方法。2020年6月—2022年6月，兰州大学第二医院收治9例符合入选标准的合并深部死腔的臀部复杂性创面患者，其中男6例、女3例，年龄26~62岁，原始创面面积为4.0 cm×3.0 cm~8.0 cm×7.0 cm，死腔深度为7~11 cm。均采用臀部自由穿支螺旋桨肌皮瓣修复创面，皮瓣面积为6.0 cm×2.5 cm~13.0 cm×7.0 cm，肌瓣长6~11 cm。将供区创面均直接拉拢缝合。观察术后肌皮瓣成活、并发症发生及供受区创面愈合情况。随访观察供受区外形。 结果： 1例患者术后2 d因引流不畅，肌皮瓣下出现淤血，经换药引流15 d愈合，其余患者肌皮瓣术后均顺利成活；供受区创面均愈合良好。随访3~10个月，供受区均外形饱满，与健侧差别不大，能够承压。 结论： 臀部自由穿支螺旋桨肌皮瓣可以同时修复深部死腔和体表创面。采用该肌皮瓣修复合并深部死腔的臀部复杂性创面，供区损伤小，术后供受区能够承压，并能保证臀部饱满的外形。.