目的:探讨游离股前外侧区双叶穿支皮瓣的血供方式及临床应用经验。方法:回顾性分析2014年3月至2019年7月，采用股前外侧区双叶穿支皮瓣修复102例四肢创面患者资料，男80例，女22例；年龄9~66岁，平均40.7岁。其中29例为不连续的两处创面，创面面积5 cm×5 cm~30 cm×18 cm；73例为单一创面，创面面积12 cm×11 cm~27 cm×15 cm。术前以彩超定位股前外侧区穿支点，根据创面形状设计双叶皮瓣。根据血供方式的不同设计共干型、双干型、筋膜型、混合型双叶穿支皮瓣移植修复创面。对于穿支为共干型或筋膜型皮瓣，切取游离后直接修复创面；对于穿支为双干型或混合型皮瓣，在皮瓣断蒂后先行穿支内增压吻合，而后再拼合修复创面。股前外侧供区均直接缝合。结果:102例患者共设计双叶穿支皮瓣105侧，其中共干型43侧、双干型30侧、筋膜型24侧、混合型8侧。单叶的皮瓣切取面积为6 cm×5 cm~20 cm×9 cm。1例伴有两处创面者术后17 h双叶皮瓣中的一叶发生动脉危象，手术探查为动脉顽固性痉挛，经移植静脉后皮瓣危象解除，术后该叶皮瓣远端出现约4 cm×3 cm浅表坏死，经换药后瘢痕愈合；2例修复单一创面的双叶皮瓣术后48 h其中一叶发生静脉危象，经拆除缝线，皮瓣表面切口放血7 d后成活。102例患者创面均愈合，愈合时间8~83 d，平均19 d；大腿供区均一期愈合。术后102例患者均获得随访，随访时间6~70个月，平均16个月。末次随访时，皮瓣色泽、质地良好，皮瓣温、痛、触觉部分恢复。根据英国医学研究会感觉评级标准评定：S2级21例，S3级81例。根据中华医学会手外科学会断指再植功能评定标准的血运评价指标，优91例，良11例；优良率100%。供区VAS评分均为0分，多为线性瘢痕存留，其中5例瘢痕宽度超过3 cm，但未出现瘢痕挛缩及疼痛等不适。9例患者术后早期出现供区感觉异常，3个月后逐步恢复。结论:应用不同血供类型的双叶股前外侧穿支皮瓣修复四肢创面，可以克服因源动脉不同造成的血供缺失或不足；同时明确血供分型有助于设计分叶皮瓣及切取，术后可大幅提高皮瓣的成活率。“,”Objective:To investigate the blood supply pattern and characteristics of bilobate anterolateral thigh flaps, and to summarize the clinical experience.Methods:Date of 102 cases of limb wounds repaired by bilateral anterolateral thigh perforator flaps from March 2014 to July 2019 were retrospectively analyzed. There were 80 males and 22 females with an average age of 40.7 years (range, 9-66 years). All of the patients suffered from limb trauma with complex tissue defects, among which 29 cases had two adjacent and discontinuous wound surfaces on the same limb, and the area ranged from 5 cm×5 cm to 30 cm×18 cm, while the other 73 cases remained a single wound with the area ranged from 12 cm×11 cm to 27 cm×15 cm. Ultrasonic Doppler was used to locate the perforating branches. According to different patterns of blood supply, flaps of different types were designed and applied respectively. For those who with perforating branches of common trunk type or fascial type, the wound surface can be covered by the flap directly; for those who with perforating branches of double trunks type or mixed type, the turbocharging technique was performed after dissection of the pedicles of the flap, while the wound was repaired by reconnection. All the donor sites were sutured directly.Results:Total of 105 bilobed flaps were designed in 102 patients, including 43 flaps of common trunk type, 30 flaps of double trunks type, 24 flaps of fascial type and 8 flaps of mixed type. The single harvested flap area ranged from 6 cm×5 cm to 20 cm×9 cm. One patient's one piece of the bilobed flap repairing two wounds suffered an arterial crisis at 17 h after surgery. The surgery confirmed there was an intractable arterial spasm and the crisis was relieved after a vein trans-plantation. Then about 4 cm×3 cm superficial necrosis appeared in the most distal part of the flap and healed in secondary after dressing changes. Two cases with single wounds suffered from a vein crisis at 48 h after operation. After removing the suture and blood letting, the flaps survived a week later. The average healing time was 19 days (range, 8-83 days). All the thigh donor sites healed by first stage. All the cases were followed-up for an average period of 16 month (range, 6-70 months). The latest follow-up showed that the flaps were of good color and texture, and the sensation of the flaps recovered partially. According to the British Medical Research Council sensory rating scale: 21 cases were grade S2 and 81 cases were grade S3. According to the revascularization assessments of digital replantation standard by Hand Surgery Branch of Chinese Medical Association, the results were excellent in 91 cases, good in 11 cases, with excellent and good rate of 100%. Linear scars were left in most donor sites and the VAS scores were all zero. 5 cases had a large scar area which the width was more than 3 cm, but there was no scar contracture or pain. 9 cases had an abnormal sensation in the donor area in the early stage and recovered gradually 3 months later without any movement disorder.Conclusion:The use of the bilobed anterolateral femoral perforator flap with different blood supply patterns to repair the wounds of extremities could overcome the lack or deficiency of blood supply caused by perforators with different sources. To clarify the blood supply types is conducive to the flap cutting and leaf splitting during the operation, which greatly improves the survival rate of the flap.