指固有神经背侧支移位重建指腹感觉功能

目的 介绍示中环指指固有神经背侧支移位,修复同指对侧指固有神经或邻指指固有神经撕脱离断伤的方法.方法 2003年8月至2008年12月,对56例72指指固有神经撕脱离断伤患者,取同指对侧或邻指相邻侧指固有神经背侧支移位,与受损指固有神经远断端缝合修复.结果 术后56例均获得6个月至1.5年的随访,平均1年2个月.修复侧指腹感觉均恢复,两点分辨觉为6～9 mm(平均7.3 mm),感觉为S4.指腹饱满.结论 示中环指指固有神经背侧支移位,修复同指对侧指固有神经或邻指指固有神经撕脱离断伤的方法,能恢复指腹良好感觉,方法简单,疗效确切.

Abstract：

Objective To introduce the surgical method of transferring dorsal branch of the proper digital nerve of index, middle or ring finger to the lacerated digital nerve on the opposite side of the same finger or the neighboring finger. Methods From August 2003 to December 2008, 72 lacerated proper digital nerves in 56 cases were repaired by transferring dorsal branch of the proper digital nerve from the opposite side of the same finger or from the neighboring side of the neighboring finger. The transferred nerve was coapted to the distal end of the lacerated nerve. Results All 56 cases were followed for 6 months to 1.5 years postoperatively, with an average of 14 months. Recovery of sensation of the reinnervated finger pulps was observed in all cases. Two-point discrimination was 6 to 9 mm, average being 7.3 mm. Sensory function was rated as S4. The pulps were full in contour. Conclusion Transferring dorsal branch of the proper digital nerve of index, middle or ring finger to the lacerated digital nerve on the opposite side of the same finger or the neighboring finger was a simple and effective method to restore sensory function of the pulp.     

改良第二掌背动脉皮瓣修复示中指中末节套脱伤

Objective To investigate the operative procedure and the clinical results of the modified reversed island flap based on the second dorsal metacarpal artery (SDMA) for repairing index or long finger degloving defects.Methods From May 2004 to January 2010, circumferential soft tissue defect in the middle and distal phalanx of the index or long fingers in 17 patients were repaired by the modified reversed island flaps based on SDMA.The dorsal digital nerve in the flap was coapted to the severed proper digital nerve.The area of the flaps ranged from 2.5 cm × 5.6 cm to 5.0 cm × 6.5 cm.The donor sites were closed by skin graft.Results Postoperatively blister and necrosis of the distal flap occurred in 2 cases which was cured by dressing change.All the other flaps survived uneventfully.Primary healing of the flaps and donor sites was achieved.All 17 patients were follow-up for 4 to 27 months with an average of 15.3 months.The flaps were pliable, full but not bulky.Two-point discrimination was 7 to 11 mm (mean 8.6 mm).Hand function as judged by the total active range of motion of the fingers was excellent in 8 fingers, good in 7 fingers and fair in 2 fingers.The satisfactory rate was 88.2%.Conclusion Modified SDMA reversed island flap transfer with dorsal digital nerve coaptation is an ideal procedure to repair index or long finger degloving injuries.The area of the harvested flap is large enough to cover the circumferential soft tissue defect in the middle and distal phalanx.The surgery is safe due to the reliable flap circulation.     

改良第二掌背动脉皮瓣修复示中指中末节套脱伤

Objective To investigate the operative procedure and the clinical results of the modified reversed island flap based on the second dorsal metacarpal artery (SDMA) for repairing index or long finger degloving defects.Methods From May 2004 to January 2010, circumferential soft tissue defect in the middle and distal phalanx of the index or long fingers in 17 patients were repaired by the modified reversed island flaps based on SDMA.The dorsal digital nerve in the flap was coapted to the severed proper digital nerve.The area of the flaps ranged from 2.5 cm × 5.6 cm to 5.0 cm × 6.5 cm.The donor sites were closed by skin graft.Results Postoperatively blister and necrosis of the distal flap occurred in 2 cases which was cured by dressing change.All the other flaps survived uneventfully.Primary healing of the flaps and donor sites was achieved.All 17 patients were follow-up for 4 to 27 months with an average of 15.3 months.The flaps were pliable, full but not bulky.Two-point discrimination was 7 to 11 mm (mean 8.6 mm).Hand function as judged by the total active range of motion of the fingers was excellent in 8 fingers, good in 7 fingers and fair in 2 fingers.The satisfactory rate was 88.2%.Conclusion Modified SDMA reversed island flap transfer with dorsal digital nerve coaptation is an ideal procedure to repair index or long finger degloving injuries.The area of the harvested flap is large enough to cover the circumferential soft tissue defect in the middle and distal phalanx.The surgery is safe due to the reliable flap circulation.     

Reconstruction of finger pulp defect with reversed fasciocutaneous island flap from same finger

Objective:To investigate the clinical curative effect of reconstruction of finger pulp defect by anastomosis of reversed fasciocutaneous island flap with dorsal branch of the digital nerve of the same finger. Methods: The restoration of finger pulp defect with fasciocutaneous island flap from the same finger was conducted in 25 cases (30 fingers) from January 2002 to June 2003. Nine patients (11 fingers) whose flaps with dorsal branch of the digital nerve anastomosed with the digital inherent nerve around the surface of the wound were Group A and the others were Group B. The follow-up was carried out at 3 and 9 months after the operation to observe the shape of finger pulp and the sense restoration between two groups. Results: All flaps of 25 cases (30 fingers) survived. Three months after operation, the patients had fully grown finger pulps and recovered the superficial sensation and tactile sense of finger pulps. The two point discrimination on average was 5. 00 mm±0. 23 mm in Group A and 6.00 mm±0.30 mm in Group B. The difference between two groups was highly significant. Nine months later, their senses of finger pulps between two groups were recovered basically. Conclusions: The reversed fasciocutaneous island flap from the same finger is the first choice to reconstruct the finger pulp defect, and the anastomosis of dorsal branch of the digital nerve shall be determined according to the specific condition.     

改良掌背动脉穿支皮瓣修复手指软组织缺损

目的 探讨吻合皮神经改良掌背动脉穿支皮瓣修复手指软组织缺损的方法及临床疗效.方法 2005年1月至2008年3月收治31例38指软组织缺损患者,男26例31指,女5例7指;年龄14～66岁,平均29.6岁.其中示指11指,中指18指,环指6指,小指3指.31例中9例伴肌腱断裂(伸肌腱断裂6例,屈肌腱断裂3例),其中伸肌腱缺损3指;伴中节指骨骨折5例.缺损范围为1.0cm×0.8 cm～3.2 cm×2.5 cm.缺损平面均位于近侧指间关节以远,应用不带掌背动脉全长的掌背动脉远端穿支逆行岛状皮瓣修复,皮瓣血管蒂的旋转点由传统指蹼游离缘近侧1.5 cm背侧改至掌侧,并吻合指背神经.皮瓣切取范围1.2 cm×1.0 cm～3.5 cm×2.8 cm.供区直接缝合或游离植皮.结果 术后3例皮瓣远端出现张力性水疱表皮结痂,经换药后愈合;其余皮瓣顺利成活,皮瓣及供区切口均Ⅰ期愈合.28例35指术后获3～25个月(平均15.3个月)随访.皮瓣质地柔软,外观饱满.两点辨别觉为6～9 mm,平均7.7 mm.术后8个月,手功能按手指总主动活动度法评定:优20指,良13指,可2指,优良率为94.3%.结论 吻合皮神经改良掌背动脉远端穿支逆行岛状皮瓣移植修复手指软组织缺损,疗效满意,是一种较好的方法.

Abstract：

Objective To report operative procedures and clinical results of repairing finger soft tissue defects with a modified reversed island flap pedicled on a perforating branch of the dorsal metacarpal artery. Methods From January 2005 to March 2008,we repaired 38 finger soft tissue defects in 31 patients (26 men and 5 women) with a modified reversed island flap pedicled on a distal perforating branch of the dorsal metacarpal artery and anastomosis of the cutaneous nerve.Their ages ranged from 14 to 66 years,with a mean of 29.6 years.Altogether 11 index,18 middle,6 ring and 3 little fingers were injured.Nine patients were complicated with rupture of tendons,3 with extenso-tendon defects and 5 with middle phalanx fractures.The defect areas ranged from 1.0 cm × 0.8 cm to 3.2 cm× 2.5 cm.The flap areas ranged from 1.2 cm× 1.0 cm to 3.5 cm× 2.8 cm.The flap did not carry a full length of the dorsal metacarpal artery but only the distal perforating branch of the artery.The rotating point of the flap pedicle was altered from the dorsal to the palmar side to extend the vessel pedicle.The donor sites were closed by suture or skin graft. Results Twenty-eight patients (35 fingers) were followed up for 3 to 25 months (mean,15.3 months) .All flaps survived with satisfactory appearance,sensation and function.All flaps and donor sites obtained primary healing.The two-point discrimination was 6 to 9 mm (mean,7.7 mm).According to Total Active Movement (TAM) evaluation system,the results were excellent in 20,good in 13 and fair in 2 fingers,with a good to excellent rate of 94.3％. Conclusion The modified reversed island flap pedicled on a distal perforating branch of the dorsal metacarpal artery and anastomosis of the cutaneous nerve is an easy,safe and effective treatment for finger soft tissue defects.     

改良第二掌背动脉皮瓣修复示中指中末节套脱伤

目的 探讨应用第二掌背动脉(second dorsal metacarpal artery,SDMA)逆行岛状皮瓣修复示、中指中末节皮肤套状撕脱伤的方法及疗效.方法 2004年5月至2010年1月,收治17例示指或中指中末节皮肤套状撕脱伤患者.采用SDMA岛状皮瓣进行修复,并缝合指背神经.皮瓣切取面积为2.5 cm×5.6 cm～5.0cm×6.5 cm,供区创面行游离植皮.结果 术后2例皮瓣远端出现张力性水泡,表皮结痂,经换药后愈合;其余皮瓣顺利存活.皮瓣及供区植皮切口均Ⅰ期愈合.术后17例获得4～27个月的随访,平均15.3个月.皮瓣质地柔软,外观饱满无臃肿.两点分辨觉为7～11 mm,平均8.6 mm.手功能按手指总主动活动度(total active movement,TAM)法评定:优8指,良7指,可2指;优良率为88.2%.结论 缝合指背神经的改良SDMA逆行岛状皮瓣,皮瓣切取面积足够覆盖示、中指中末节套状撕脱伤皮肤缺损创面,皮瓣血运可靠,手术安全,是一种较好的手术方法.

Abstract：

Objective To investigate the operative procedure and the clinical results of the modified reversed island flap based on the second dorsal metacarpal artery (SDMA) for repairing index or long finger degloving defects.Methods From May 2004 to January 2010, circumferential soft tissue defect in the middle and distal phalanx of the index or long fingers in 17 patients were repaired by the modified reversed island flaps based on SDMA.The dorsal digital nerve in the flap was coapted to the severed proper digital nerve.The area of the flaps ranged from 2.5 cm × 5.6 cm to 5.0 cm × 6.5 cm.The donor sites were closed by skin graft.Results Postoperatively blister and necrosis of the distal flap occurred in 2 cases which was cured by dressing change.All the other flaps survived uneventfully.Primary healing of the flaps and donor sites was achieved.All 17 patients were follow-up for 4 to 27 months with an average of 15.3 months.The flaps were pliable, full but not bulky.Two-point discrimination was 7 to 11 mm (mean 8.6 mm).Hand function as judged by the total active range of motion of the fingers was excellent in 8 fingers, good in 7 fingers and fair in 2 fingers.The satisfactory rate was 88.2%.Conclusion Modified SDMA reversed island flap transfer with dorsal digital nerve coaptation is an ideal procedure to repair index or long finger degloving injuries.The area of the harvested flap is large enough to cover the circumferential soft tissue defect in the middle and distal phalanx.The surgery is safe due to the reliable flap circulation.     

指根部远近端蒂岛状皮瓣修复相邻两指指端缺损

Objective To introduce a new surgical procedure for repairing fingertip defects of two neighboring fingertips.Methods Seven cases of fingertip defects of two neighboring fingers were treated by transferring a proximal and a distal island flap harvested from the base of one of the involved fingers.The distal flap was transferred to repair defect of the same finger,while the proximal one was transferred to repair defect of the neighboring finger.There were defects of the index and middle fingers in 2 cases,defects of the middle and ring fingers in 4 cases,and defects of the ring and little fingers in 1 case.Finger pulp defect occurredins 8 digits,soft tissue defect distal to middle phalanx in 4 digits,and defect of ringer stump in 2 cases.Exoosure of the tendon,nerve or bone was seen in all cases.The size of the proximal flaps ranged from 1.2cm× 1.5 cm to 2.3 cm×1.5cm,while the size of distal flaps ranged from 1.0cm×1.0 cm to 1.5cm×1.0cm. Results All 14 flaps in the 7 cases survived completdy.One patient underwent secondary correction of crooked nail 6months after the fkap surgery.Postoperative follow-up rangea from 6 months to 18 months.All repaired fingers had satisfactory appearance and texture.Two-point discrimination was 8 to 12 mm.The good and excellent rate of finger function recovery was 95.7%according to the provisional functional assessment criterion for upper limbs issued by the Chinese Hand Surgery Society. Condusion The flap design of this procedure is based on the anatomical characteristics of communicating branches of the digital artery at the base of the finger.Two flaps from the base of the same finger are harvested to make full use of the harvestable area of the donor finger,and avoid damage to another finger.This procedure expands the applicable indications of finger base island flaps and is an ideal method to repair defects of neighboring fingers.     

指根部远近端蒂岛状皮瓣修复相邻两指指端缺损

Objective To introduce a new surgical procedure for repairing fingertip defects of two neighboring fingertips.Methods Seven cases of fingertip defects of two neighboring fingers were treated by transferring a proximal and a distal island flap harvested from the base of one of the involved fingers.The distal flap was transferred to repair defect of the same finger,while the proximal one was transferred to repair defect of the neighboring finger.There were defects of the index and middle fingers in 2 cases,defects of the middle and ring fingers in 4 cases,and defects of the ring and little fingers in 1 case.Finger pulp defect occurredins 8 digits,soft tissue defect distal to middle phalanx in 4 digits,and defect of ringer stump in 2 cases.Exoosure of the tendon,nerve or bone was seen in all cases.The size of the proximal flaps ranged from 1.2cm× 1.5 cm to 2.3 cm×1.5cm,while the size of distal flaps ranged from 1.0cm×1.0 cm to 1.5cm×1.0cm. Results All 14 flaps in the 7 cases survived completdy.One patient underwent secondary correction of crooked nail 6months after the fkap surgery.Postoperative follow-up rangea from 6 months to 18 months.All repaired fingers had satisfactory appearance and texture.Two-point discrimination was 8 to 12 mm.The good and excellent rate of finger function recovery was 95.7%according to the provisional functional assessment criterion for upper limbs issued by the Chinese Hand Surgery Society. Condusion The flap design of this procedure is based on the anatomical characteristics of communicating branches of the digital artery at the base of the finger.Two flaps from the base of the same finger are harvested to make full use of the harvestable area of the donor finger,and avoid damage to another finger.This procedure expands the applicable indications of finger base island flaps and is an ideal method to repair defects of neighboring fingers.     

指动脉远侧指间关节皮支蒂指侧方岛状皮瓣修复指端软组织缺损

目的 探讨以指动脉远侧指间关节皮支为蒂指侧方岛状皮瓣修复同指指端软组织缺损的临床效果.方法 2009年6月至2010年3月,对15例15指手指远侧指间以远的指端缺损的患者,采用以指动脉远侧指间关节皮支为蒂指侧方岛状皮瓣转移修复,术中切取皮瓣范围1.2 cm×0.8 cm～2.0 cm × 3.0 cm,供区取前臂全厚皮片移植修复.结果 15例15指术后获得随访10例10指,时间为6～12个月,皮瓣和移植皮片全部顺利成活,皮瓣质地柔软,外观满意,颜色与周围皮肤接近,顺行推进岛状皮瓣的两点辨距觉为5～6 mm,逆行岛状皮瓣的两点辨距觉为7～10 mm,远侧指间关节屈伸活动无明显障碍.手功能ATM法评定,优8指,良1指,可1指.结论 应用该皮瓣修复指端软组织缺损,不损伤指动脉和指神经,简化了传统的指根部岛状皮瓣的手术,是一种较好的方法.

Abstract：

Objective To investigate the repair of soft tissue defect at finger tip with square island flap pedicled with skin perforator of digital artery on the distal interphalangeal joint( DIP). Methods From Jun. 2009 to Mar. 2010, 15 cases with soft tissue defects at 15 fingers tip were treated with this island flaps. The flap size ranged from 1. 2 cm × 0. 8 cm to 2. 0 cm × 3. 0 cm. The defects at donor sites were covered with skin grafts from forearm. Results All the flaps and skin grafts survived. 10 fingers in 10 cases were followed up for 6-12 months. The color, texture and contour of the flaps were good. The twopoint discrimination distance was 5-6 mm on the directed island flaps, and 7-10 mm on the reverse island flaps. No obvious functional problem was found in DIP motion. The hand function was assessed as excellent in 8 fingers, good in 1 finger and medium in 1 finger. Conclusions The main artery and nerve will not be sacrified when the island flap is used. The operative procedures are easily performed for the treatment of fingertip skin defect.     

游离足底内侧皮瓣修复腕掌尺侧皮肤神经缺损

目的 探讨修复腕掌尺侧皮肤神经同时缺损的新方法.方法 2000年4月至2009年8月,应用游离足底内侧皮瓣修复腕掌尺侧皮肤并神经缺损5例.足拇趾胫侧趾底固有神经修复小指尺掌侧固有神经缺损1例;桡神经浅支修复尺神经及其深浅支缺损2例,修复尺神经浅支、第4指掌侧总神经及小指尺掌侧固有神经缺损1例;尺神经手背支修复尺神经浅支、第4指掌侧总神经及小指尺掌侧固有神经缺损1例.足底内侧血管与尺血管吻合.供区取同侧大腿皮片移植修复.结果 术后皮瓣及移植皮片全部成活.5例获得6个月至4年的随访,皮瓣质地好、外观满意,无手内肌萎缩和爪形手畸形,皮瓣和手指感觉恢复达S3～S3+,皮瓣两点辨距觉为7～10 mm.尺神经深浅支缺损病例术后综合评价均为优.结论 游离足底内侧皮瓣是修复腕掌尺侧皮肤神经缺损的有效方法.

Abstract：

Objective To explore a new method for repair of concurrent skin and nerve defect at palm and carpal on ulnar side. Methods From April 2000 to August 2009, five cases with concurrent skin and nerve defect at palm and carpal on ulnar side were reconstructed with free medial plantar flaps.Palmar nervous proprii defect at ulnar side of little finger was repaired by the first toe tibia nervous proprii in one case. The superficial branch of radial nerve was applied to repair the defect of ulnar nerve, as well as its deep or superficial branch in two cases. The superficial branch of radial nerve was also used to repair the defect of superficial branch of ulnar nerve, common palmar digital nerve of the fourth finger, Little finger ulnar palmar nervous proprii in one case. The dorsal branch of ulnar nerve was applied to repair the defect of superficial branch of ulnar nerve, common palmar digital nerve of the fourth finger, little finger ulnar palmar nervous proprii in one case. The vascular bundle of medial plantar flap was anastomozised with ulnar vascular bundle. The wounds at donor sites were covered with free skin grafts which were obtained from upper leg. Results All the flaps and skin grafts were survived completely. The five patients were followed up for six months to four years with no muscular atrophy or claw hand deformity. The esthetic result was satisfied. The Sensory of flaps and fingers recovered to S3 to S3+. The two-point discrimination distance on flaps was range from 7 mm to 10 mm. The postoperative comprehensive evaluation was excellent in the cases whose superficial and deep branches of ulnar nerve were repaired.Conclusions Free medial plantar flap is an effective method to repair concurrent skin and nerve defect at palm and carpal on the ulnar side.     

缝合神经的指固有动脉背支血管链皮瓣修复指远端皮肤缺损

目的 探讨缝合神经的指固有动脉背支血管链皮瓣修复指远端皮肤缺损的疗效.方法 2008年12月至2009年11月,对24例26指指远端皮肤缺损患者,以指固有动脉背侧支形成的血管链为血供,于近节指体侧方设计皮瓣,皮瓣轴线为指体侧方中线,皮瓣蒂宽0.8～1.0cm,皮瓣转折点为中节指体中远端,逆行转移修复指远端皮肤缺损,皮瓣携带指固有神经背侧支或指背神经与创面指神经断端进行缝合修复,重建手指感觉.结果 术后26指皮瓣均存活.随访时间为6～8个月,皮瓣外形理想,质地良好,感觉恢复优良,两点分辨觉为4～8 mm,患指指间关节平均活动度恢复优良.结论 采用缝合神经的指固有动脉背支血管链皮瓣修复指远端皮肤缺损,操作简单,血供可靠,不牺牲指固有动脉、神经,供区损伤小,术后并发症少,并能重建感觉,是一种理想的手术修复方法.     

缝合神经的指固有动脉背支血管链皮瓣修复指远端皮肤缺损

目的 探讨缝合神经的指固有动脉背支血管链皮瓣修复指远端皮肤缺损的疗效.方法 2008年12月至2009年11月,对24例26指指远端皮肤缺损患者,以指固有动脉背侧支形成的血管链为血供,于近节指体侧方设计皮瓣,皮瓣轴线为指体侧方中线,皮瓣蒂宽0.8～1.0cm,皮瓣转折点为中节指体中远端,逆行转移修复指远端皮肤缺损,皮瓣携带指固有神经背侧支或指背神经与创面指神经断端进行缝合修复,重建手指感觉.结果 术后26指皮瓣均存活.随访时间为6～8个月,皮瓣外形理想,质地良好,感觉恢复优良,两点分辨觉为4～8 mm,患指指间关节平均活动度恢复优良.结论 采用缝合神经的指固有动脉背支血管链皮瓣修复指远端皮肤缺损,操作简单,血供可靠,不牺牲指固有动脉、神经,供区损伤小,术后并发症少,并能重建感觉,是一种理想的手术修复方法.     

指固有动脉背侧支为蒂的逆行掌指背筋膜皮瓣的临床应用

目的 探讨以指固有动脉背侧支为蒂的逆行掌指背筋膜皮瓣修复手指中、远节皮肤软组织缺损的效果.方法 从2007年6月至2009年6月,应用以指固有动脉背侧支为蒂的逆行掌指背筋膜皮瓣修复25例手指中、远节皮肤软组织缺损,皮瓣旋转点位于手指近节中点或近节远段.结果 24例皮瓣完全成活,1例皮瓣远端少部分表皮层坏死.随访病例20例,随访12～18个月.6例皮瓣蒂部局部臃肿需要二期修薄,其余皮瓣血运良好,耐寒,皮瓣薄而质地柔软,外观色泽良好,皮瓣供区无伸肌腱粘连和指蹼挛缩.5例吻合神经的皮瓣两点分辨觉6～10 mm,15例未吻合神经的皮瓣两点分辨觉8～14 mm.结论 以指固有动脉背侧支为蒂的逆行掌指背筋膜皮瓣血运可靠,旋转弧长,操作简单,皮瓣更接近创面,对皮瓣供区损伤更小,可以吻合皮神经重建皮瓣感觉,是一种修复手指中、远节软组织缺损的理想方法.     

指背筋膜逆行岛状皮瓣修复指腹缺损

目的 介绍指背筋膜逆行皮瓣修复指腹、指尖缺损的手术方法及临床效果。方法 在手指近节中远段及近侧指间关节背倒设计皮瓣，皮瓣边缘不超过手指侧正中线，轴点位于远侧指间关节背桡侧或尺背侧，指背侧缘为轴心线。切取的皮瓣内含有指固有神经背侧支，转移后与创面指固有神经断端缝合。结果 本组16例皮瓣全部成活，随访5～18个月，外形美观，质地柔软、耐磨，指腹两点辨别觉为4mm—7．5mm。供区无并发症发生。结论 该皮瓣具有不损伤主要动脉、神经，操作简便，质地良好，血供可靠等优点，重建的指腹感觉恢复满意，是修复指腹缺损的较好方法。     

吻合血管的第二掌背动脉皮瓣修复手指掌侧皮肤伴双侧指固有神经、动脉缺损

目的:探讨吻合血管的第二掌背动脉(second dorsal metacarpal artery,SDMA)皮瓣修复手指掌侧皮肤伴双侧指固有神经、动脉缺损的手术方法及临床疗效。方法:自2017年2月至2019年3月,我们对11例手指掌侧皮肤伴双侧指固有神经、动脉缺损患者采用SDMA皮瓣修复创面,皮瓣近端切断的SDMA与...     

伤指背筋膜岛状皮瓣修复手指软组织缺损

目的 介绍以伤指指背筋膜为蒂，带指固有神经背侧支的岛状皮瓣顺行或逆行转移修复指腹或指背软组织缺损的方法。方法 在手指近、中节背侧沿指固有神经背侧支走行方向设计并切取筋膜蒂皮瓣，切取皮瓣时蒂部带一矩形皮瓣，以减轻转位后皮瓣蒂部的张力。皮瓣顺行转移不需缝合神经，逆行转移时与受区神经缝合。皮瓣切取范围不超过手指侧中线，切取面在腱周浅层，皮瓣转移轴线沿指固有神经背侧支走向。结果 本组17例22指皮瓣全部成活。结论 采用伤指指背筋膜蒂岛状皮瓣转移修复指腹或指背皮肤缺损是一种简单安全，行之有效的手术方法。     

缝合神经的掌骨背逆行筋膜蒂皮瓣修复逆行指动脉皮瓣术后供区皮肤缺损

目的：探讨采用缝合神经的掌骨背逆行筋膜蒂皮瓣修复逆行指动脉皮瓣切取后指神经裸露及软组织缺损的方法及疗效。方法应用缝合神经的掌骨背逆行筋膜蒂皮瓣修复逆行指动脉皮瓣移植后供区软组织缺损20例21指,软组织缺损面积：1.5 cm×2.0 cm～2.0 cm×3.0 cm。随访检测患指皮瓣外观、关节活动度及感觉等指标。结果术后20例皮瓣全部成活。术后经5个月随访,修复后患指指动脉皮瓣供区外形饱满,质地柔软,局部皮肤感觉及供区各关节活动范围令人满意。结论采用缝合神经的掌骨背逆行筋膜蒂皮瓣修复逆行指动脉皮瓣切取后供区指神经裸露及软组织缺损是有效而简单的方法,并可获得良好的外形及功能。     

Outcome of free digital artery perforator flap transfer for reconstruction of fingertip defects

Background:

Fingertip defect can be treated with many flaps such as random pattern abdominal flap, retrograde digital artery island flap, V-Y advancement flap, etc. However, swelling in the fingertip, dysfunction of sensation, flexion and extension contracture or injury in the hemi-artery of the finger usually occurs during the recovery phase. Recently, digital artery perforator flaps have been used for fingertip reconstructions. With the development of super microsurgery techniques, free flaps can be more effective for sensory recovery and durability of the fingertip.

Materials and Methods:

Six cases (six fingers) of fingertip defects were treated with free digital artery perforator flaps of appropriate size and shape from the proximal phalanx. During surgery, the superficial veins at the edge of flap were used as reflux vessels and the branches of the intrinsic nerve and dorsal digital nerve toward the flap were used as sensory nerves. The proximal segment of the digital artery (cutaneous branches) towards the flap was cut off to form the pedicled free flap. The fingertips were reconstructed with the free flap by anastomosing the cutaneous branches of digital artery in the flap with the distal branch or trunk of the digital artery, the flap nerve with the nerve stump and the veins of the flap with the digital artery accompanying veins or the superficial veins in the recipient site.

Results:

Six flaps survived with successful skin grafting. Patients were followed up for 6-9 months. The appearance and texture of the flaps was satisfactory. The feeling within the six fingers recovered to S4 level (BMRC scale) and the two point discrimination was 3-8 mm.

Conclusion:

Free digital artery perforator flap is suitable for repairing fingertip defect, with good texture, fine fingertip sensation and without sacrificing the branch of the digital artery or nerve.     

指固有神经背侧支的应用解剖学研究

目的 为指固有神经背侧支的临床应用提供解剖学基础。方法 观测12只新鲜成人手标本48个手指指固有神经背侧支出的出现率、直径、走向及分支。结果 示、中、环指及小指桡侧指固有神经发出的单一分支形成背侧支者占92．86％（78．84）,背侧支缺如者占7．14％（6．84侧）。各指背侧支均在近节手指近、中1／3平面发出,并从指侧面斜向指背远端走行。在近指间关节桡背（或尺背）侧向背面及中节指背发出2－5条分支。除小指外,2－4指指桡、尺侧背侧支的直径粗细均有显著性差异（P＜0．05）,桡侧＞尺侧。小指飞侧无指固有神经背侧支。结论 示、中、环及小指的桡侧指固有神经背侧支走向恒定,可包含在同指逆行岛状皮瓣内,适用于修复指腹软组织缺损。     

Innervated reverse dorsal digital island flap for fingertip reconstruction

PURPOSE: Various methods of fingertip reconstruction with a sensory flap have been reported. Digital island flaps or cross-finger flaps have to be used for large defects; however, the digital artery is sacrificed when creating conventional homodigital island flaps and 2 surgeries are required for the cross-finger flap. We describe our experience with an innervated reverse dorsal digital island flap that does not require sacrifice of the digital artery. METHODS: We used innervated reverse dorsal digital flaps for fingertip reconstruction in 8 patients. The flap was supplied by the vascular network between the dorsal digital artery (the terminal branch of the dorsal metacarpal artery) and the dorsal branch of the digital artery. Venous drainage was through the cutaneous veins and the venous network associated with the dorsal arterial network. The flap was designed on either the dorsal proximal or the dorsal middle phalangeal region. The flap was harvested with the dorsal branch of the digital nerve (for the dorsal middle phalanx), the dorsal digital nerve (for the dorsal proximal phalanx), or the superficial branch of the radial nerve (for the thumb), which was anastomosed to the distal end of the digital nerve. After flap transfer the donor site was covered with a full-thickness skin graft. RESULTS: Of the 8 flaps, 6 survived completely, 1 had partial epithelial skin necrosis, and 1 showed central compression skin necrosis. Three flaps showed congestive changes from the first to the fifth day after surgery, which resolved by massage. All patients achieved satisfactory recovery of sensation; the static 2-point discrimination ranged from 3 mm to 5 mm and the Semmes-Weinstein test results ranged from 0.036 g to 0.745 g. CONCLUSIONS: The innervated reverse dorsal digital island flap provides another option for homodigital tip coverage. The advantages are that the digital artery is not sacrificed and only 1 surgery is needed. A disadvantage is the potential for venous congestion for the first 4 or 5 days after surgery.