case_images: PMC10901587_01
case_images: Case 1: (
  A
  ) A crush amputation of the index finger at the proximal phalanx. (
  B
  ) X-ray image at the time of injury. (
  C
  ) Intraoperative view of the replantation. (
  D
  ) Immediately after the replantation, the proximal interphalangeal joint was kept at an extended position without any orthosis. (
  E
  ) Intraoperative view of the second surgery: a silicone rod insertion and the A2 pulley reconstruction. (
  F
  ) X-ray image at 18 months after the replantation. (
  G
  ) At 7 years and 9 months after the replantation, the patient achieved full extension of the proximal interphalangeal joint. (
  H
  ) At 7 years and 9 months after the replantation, the total active motion was 215 degrees.
case_images: 10-1055-a-2190-8487-i22jul0140cr-1.jpg
case_images: PMC10901587_01_10-1055-a-2190-8487-i22jul0140cr-1.jpg
case_images: FI22jul0140cr-1
case_images: A 20-year-old healthy man sustained a crush amputation of the right index finger at the proximal phalanx while he was working ( Fig. 1A, B ). Because of the risk of infection of the silicone rod tendon spacer, which could spread beyond the local area to the forearm, the silicone rod was not inserted during primary replantation ( Fig. 1C ). The operation took 6 hours and 20 minutes ( Fig. 1D ). The A1 and A2 pulleys were defective, and the A2 pulley was reconstructed to limit the risk for bowstringing ( Table 1 ; Fig. 1E ). Table 2 ); the Semmes-Weinstein monofilament test (SWT) results were 2.83 and 3.61 in radial side and ulnar side, respectively; static two-point discrimination (s2PD) was 10 mm; and the moving two-point discrimination (m2PD) was 9 mm ( Table 3 ).   The finger length and contour were preserved ( Fig. 1F-H ; Video 1 , available in the online version only). The Disabilities of Arm, Shoulder, and Hand (DASH) score was 1.72. 
case_images: PMC10901587_02
case_images: Case 2: (
  A
  ) An avulsion amputation of the ring finger at the proximal interphalangeal joint. (
  B
  ) X-ray image at the time of injury. (
  C
  ) Immediately after the replantation, the proximal interphalangeal joint was kept at the extended position without any orthosis. (
  D
  ) Intraoperative view of the second surgery: a silicone rod insertion, bilateral nerve reconstructions, and the distal interphalangeal joint arthrodesis. (
  E
  ) X-ray image immediately after the third surgery: the tendon grafting and the proximal interphalangeal joint skeletal traction. (
  F
  ) X-ray image at 20 months after the replantation. (
  G
  ) At 20 months after the replantation, the patient achieved full extension of the proximal interphalangeal joint. (
  H
  ) At 20 months after the replantation, the total active motion was 180 degrees.
case_images: 10-1055-a-2190-8487-i22jul0140cr-2.jpg
case_images: PMC10901587_02_10-1055-a-2190-8487-i22jul0140cr-2.jpg
case_images: FI22jul0140cr-2
case_images: A 23-year-old healthy man sustained an avulsion amputation of the left ring finger at the PIPJ while he was working ( Fig. 2A, B ). The operation took 6.5 hours ( Fig. 2C ). The A1, A2, and A4 pulleys were preserved ( Fig. 2D ; Table 4 ). The SWT results were 3.84 and 4.56 in radial and ulnar sides, respectively, the s2PD was 12 mm, and the m2PD was not able to distinguish two points ( Table 6 ). The finger length and contour were preserved ( Fig. 2F-H ; Video 2 , available in the online version only). The DASH score was 0.83.