Free lateral tarsal artery perforator flap for repair of volar skin defect of thumb
Medicine(2023)
Abstract
To investigate the effect of free lateral tarsal artery perforator flap in the repair of the volar skin defect of the thumb. From January 2020 to December 2022, the free lateral tarsal artery perforator flap was used to repair the skin defect of the palmar side of the thumb in 11 cases. There were 9 males and 2 females with an average age of 45 years (range, 35-62 years). The causes of injury were mechanical injury in 8 cases, traffic accident in 3 cases, combined with different degrees of tendon and bone exposure and injury. The time from injury to operation was 1 to 4 hours, with an average of 2.5 hours. The size of the flap ranged from 3.0 cm x 3.0 cm to 5.5 cm x 5.0 cm, and the donor site was repaired with the skin graft. All the flaps and skin grafts survived successfully, and the wounds healed in the first stage. All patients were followed up for 6 to 24 months, with an average of 15 months. The appearance of the flap was good, with normal color, no pigmentation, and a soft texture. The 2-point discrimination of the flap was 6 to 11 mm, with an average of 8.5 mm at 6 months after operation. At the last follow-up, 8 cases were excellent and 3 cases were good according to the trial standard of upper limb function evaluation of the Chinese Society of Hand Surgery of the Chinese Medical Association, and the excellent and good rate was 100%. There was no significant effect on the sensation and function of the feet in the donor site, and the patient satisfaction was high. Free lateral tarsal artery perforator flap is a good choice to repair the skin defect of the palmar side of the thumb because of its simple operation, high survival rate and good sensory recovery of the recipient area.
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Key words
lateral tarsal artery perforator flap,microsurgery,skin defect
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