PMC9302012_01
(A) Plain AP view of the hand, bone lysis and periosteal reaction are visible on the proximal phalanx of the fourth ray. G Left side (in French: Gauche). (B) Plain lateral view of the hand. G Left side (in French: Gauche)
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Standard radiographs revealed bone lysis and periosteal reaction suggestive of malignant evolution of the previous lesion's remnants into chondrosarcoma (Figures 1a and b).
Plain AP view of the hand after amputation of the fourth ray, as per the modified Le Viet technique. G Left side (in French: Gauche).
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The patient then underwent tumor resection with amputation of the fourth ray at the base of the metacarpal, as per the modified Le Viet technique (Figure 2).
Palmar view of the hand after transcarpal amputation.
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Transcarpal amputation was performed, and only the first two rays of the hand were preserved (Figure 3).
(A) Palmar view of the hand after the defect was covered with a posterior interosseous flap. (B) Dorsal view of the forearm with the donor site.
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The defect was covered with a posterior interosseous flap (Figures 4a and b).
(A) The key pinch test with a thumb-index force at 5.5 kg. (B) The Jamar hand dynamometer with a grip force of 10 kg. (C) The pincer grasp of the patient.
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The thumb-index force was 5.5 kg and the wrist was capable of generating a force of 10 kg (Figure 5a-c).