ObjectiveTo investigate the treatment efficacy of traumatic proximal interphalangeal (PIP)joint defects with prosthetic replacement.MethodsFrom September 2007 to November 2010, ten patients with joint defect injuries were treated by joint prosthetic replacement (5 index fingers,4 middle fingers,and 1 ring finger),including a reconstructed middle finger.Joint motion range and postoperative pain of all cases were measured to evaluate the treatment.ResultsAll cases went through a smooth operation with primary wound healing,and with neither intraoperative nor postoperative complications happened.The follow-up period was range from 8 months to 2 years.The active motion arcs of PIP joints ranged from 50° to 80°,and satisfactory appearances as well. According to assessment standard of upper extremity described by Chinese Hand Surgery Association,the treatment outcome were excellent in 6 fingers,good in 3 fingers,general in 1 finger.ConclusionJoint prosthetic replacement is a new effective method to treat traumatic proximal interphalangeal joint defect,which is a simple operation with advantages of little trauma and rapid recovery.

Objective To discuss the clinical application of free micro-flap based on the superficial palmar branch of radial artery (SPBRA) to repair the palmar soft tissue defect of the finger.Methods From October,2012 to September,2015,this flap was used in 25 patients to repair the palmar soft tissue defect of the finger.The artery,the vein and the never in the flaps was anastomosed respectively with that in the recipient site.The donor area was sutured directly.Results All patients were followed-up for a mean of 11 months (range,6-20 months).All 25 flaps survived.The character of flap was good,the appearance and sensitive function obtained satisfactory resume.At the last follow-up,the two-point discrimination was 5-10mm on the affected side.According to the Standard of Evaluation of Thumb-Finger Reconstruction of the Chinese Medical Association,there were excellent in 17 cases,and good in 8 cases.The wounds of donor site healed by 1st intention with no visible scars.The function of thumb was not damaged.Conclusion The free micro-flap based on the SPBRA is feasible for soft-tissue defects of finger bacause the undamaged major blood vessels of donor site,the inconspicuous scar,and the good appearance and sensitive function of repaired fingers.

Objective To explore the clinical outcome of free chimeric anterolateral thigh cutaneotendinous flap with rectus femoris muscular flap for repairing the complex tissue defect of dorsum wrist. Methods From June, 2005 to March, 2014, free chimeric anterolateral thigh cutaneotendinous flap with rectus femoris muscular flap was used for repairing the complex tissue defect of dorsum wrist in 15 cases, which were 12 males and 3 females, and aged from 18 to 52 years old. The skin and soft tissue defect ranged from 8.0 cm×5.5 cm to 22.0 cm×12.0 cm. All ac-companied with extensor digitorum tendon loss. The tendon defect ranged from 5.0 cm to 12.0 cm (7.6 cm on average). The flap size ranged from 9.0 cm×6.5 cm to 23.0 cm×13.0 cm. The pedicle length ranged from 4.0 cm to 7.0 cm (5.3 cm on average). Results All flaps survived, and no postoperative complications occurred. The followed-up time ranged from 12 months to 36 months, and the texture of flap was flexible. No bulky was noted, and skin color was similar to the hand skin. The flexor and extensor function of wrist recovered satisfying. The 2-point discrimination of flap ranged from 9 mm to 15 mm (12.5 mm on average). Conclusion Free chimeric anterolateral thigh cutaneo-tendinous flap with rectus femoris muscular flap is a good option for repairing the complex tissue defect of dorsum wrist.