Chirurgie de la main
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Chirurgie de la main · Jan 1999
Comparative StudyA biomechanical study of Tang's multiple locking techniques for flexor tendon repair.
This study was designed to biomechanically compare Tang's multiple looped locking techniques with various suture techniques for flexor tendon repair in the hand. Fifty flexor digitorum profondus tendons taken from pig toes were used as models; The tendons were transected in the middle part of zone 2 defined as the area beneath bifurcation of the flexor digitorum superficialis tendons, and were repaired by five different suture methods: (1) modified Kessler, (2) Tsuge's suture, (3) double Kessler, (4) modified Kessler plus Tsuge, and (5) Tang's suture. The repaired tendons were placed in an Instron tensile testing machine to determine the tensile properties of the repair. 2 mm gap formation force and ultimate tensile strength were measured during the test. ⋯ Gap formation force, ultimate strength and energy to failure for double Kessler or the Kessler plus Tsuge were significantly greater than those for the Kessler or the Tsuge (p < 0.05 or < 0.01). The tendons repaired by Tang's method tolerated a significantly higher tensile load (133 to 198% of the other techniques) than the other methods. Among the methods tested, Tang's multiple looped locking suture provides sufficient gap resistance and tensile strength that may be able to withstand early active mobilization after primary flexor tendon repair.
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Chirurgie de la main · Jan 1998
Case Reports[Apropos of a case of epidermoid carcinoma of the nail bed with intraneural metastasis to the median nerve].
The authors report a case of squamous cell carcinoma of the nail bed with multiple metastases including a metastasis of the median nerve. This particular site raises the problem of the mechanism of dissemination and the aggressiveness of this squamous cell carcinoma of the nail bed contrasts with the data reported in the literature. The initial treatment of this tumour must consist of amputation of the distal phalanx.