3D-CTA assisted anterolateral thigh lobulated perforator flap in repairing soft tissue defect of limb:11 cases report / 中华显微外科杂志

ABSTRACT

Objective To investigate the effectiveness of preoperative 3D-CTA in assisting the preparation of free thinned anterolateral thigh lobulated perforator flap with nerve in repairing soft tissue defect of limb. Methods Between February, 2010 and May, 2018, free super-thin anterolateral thigh lobulated perforator flap with nerve was transferred to repair soft tissue defect of limbs in 11 cases. There were 8 males and 3 females with an average age of 35 (range, 22-56) years.The defect area was 8.0 cm×11.0 cm-9.0 cm×23.0 cm. Preoperation CT scan of the free flap donor site was performed to obtain 3D images of the region with arterial blood supply by digital 3D reconstruction CT, and to determine the origin, direction, classification, length, diameter and the position of pedicle perforator.Postopera鄄tive regular followed-up was carried according to the Upper Limb Function Evaluation Trial Standards of Chinese Medical Association of Hand Surgery and Enneking Evaluation System. Results All 11 flaps survived. No vascular crisis happened.All 11 cases were followed-up for 3 to 12 (average, 5) months.The flaps were supple and elastic with near normal color.There was no bulkiness.Sensory function was recovered well and two point discrimination was 3.0-6.0 mm. According to the Upper Limb Function Evaluation of Upper Limb of Chinese Medical Association of Hand Surgery, the results were excellent in 1 case, good in 3 cases and fair in 1 case.The Enneking system was used to as鄄sesse the lower limbs recovery.The average score was 21, an average of 70% of limb function restored. Conclusion The free super-thin anterolateral thigh lobulated perforator flap with nerve offers advantages to the traditional antero鄄lateral thigh flap. The survived flaps are ideal in terms of covering limb defects and restoring functions. Preoperative 3D-CTA in the anterolateral thigh perforator flap transplantation is an accurate and useful method.It helps a safer and successful operation with optimal outcome.