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Arch Hand Microsurg > Volume 21(1); 2012 > Article
Journal of the Korean Society for Surgery of the Hand 2012;21(1):21-26.
Published online May 31, 2012.
DOI: https://doi.org/10.12790/jkssh.2012.21.1.21   
The Radial Artery Superficial Palmar (RASP) Branch Free Flap for Finger Soft Tissue Reconstruction
Yong Jin Kim, M.D., Young Suk Suh, M.D., Sang Hyun Lee, M.D., Dong Gil Hahm, M.D.
Centum Institute for Hand and Microsurgery, West Busan Centum Hospital, Busan, Korea. yjkimhs@ymail.com
요골 동맥 표재 수장 분지 유리 피판술을 이용한 수지 연부 조직의 재건
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The radial artery superficial palmar branch free flap is based on the perforators of the superficial palmar branch of the radial artery and its venae comitantes. This flap can be used as a sensible flap including palmar cutaneous branch of the median nerve. Forty radial artery superficial palmar branch free flaps were performed at Centum Institute during October 2010 to December 2011. There were 32 males and 8 females and their mean age were 48 years (range 30 to 66 years). The thumb injured in 13 patients, the index finger in 16 patients, the middle finger in 4 patients, the ring finger in 2 patients, and the little finger in 5 patients. The mean size of the flap was 2.5×3.5 cm(range 2×2.5 to 3×7 cm). The donor site was always closed primarily. The overall survival rate was 90.2 percent. The flaps showed well-padded tissue with glabrous skin. All patients have touch sensation and showed 12 mm two point discrimination in an average(range 8 to 15 mm). Donor site morbidity was conspicuous. One patient showed unsightly scar. Early postoperative range of motion of the affected thumb showed slightly limited radial and palmar abduction. But it improved after postoperative 2 months, and patients did not complaint limitation of motion. In conclusion, the radial artery superficial palmar branch free flap can be used as an option for soft tissue reconstruction of finger defects where local or island flaps are unsuitable.
Key Words: Radial artery superficial palmar branch flap, Free flap, Finger defects

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