WebApr 10, 2024 · Methods Thirty cadaveric scaphoid specimens were assigned to one of 3 different fixation groups: (1) single 3.0-mm compression screw, (2) two 2.2-mm screws, … WebHerbert Screw Fixation of Scaphoid Frx. - Discussion: - screw is threaded at both ends and can be countersunk beneath articular surface, obviating the need for. removal after frx has healed; - it is designed to achieve compression by use of a differential thread-pitch between its proximal & distal ends, and it has guiding jig that maintains ...
双头空心加压螺钉治疗舟骨骨折术后功能恢复的相关因素分析
WebAlternative techniques include headless compression screws, staples and plate/screw constructions; Headless compression screws are gaining in popularity; Ideal radioscaphoid angle in which to fuse varies between 45 and 60 degrees of palmar flexion; Technique . Kirschner Wires . 6-8cm dorsal incision centered over the STT joint WebIf loss of compression makes screw extraction necessary, follow the instructions on screw extraction on page 24. Scaphoid. Synthes 11 7 Countersink screw Instruments 03.226.000 Compression Sleeve 03.226.004 Screwdriver Shaft, cannulated, Stardrive T8 314.430 Handle with Quick Coupling hedi bahri
Carpal tunnel syndrome - Part I (anatomy, physiology, etiology and ...
WebMethods: Thirty cadaveric scaphoid specimens were assigned to one of 3 different fixation groups: (1) single 3.0-mm compression screw, (2) two 2.2-mm screws, and (3) scaphoid plate. A 3-mm volar wedge osteotomy was created at the scaphoid waist to simulate a nonunion model. WebFigure 4: Dynamic cannulated compression screws work by having the thread wider apart at one end (orange) compared to the other end of the screw (yellow) In scaphoid fractures the screw is passed through the distal pole and then the proximal pole. As a result, ... Web1. Ozyurekoglu T, Turker T. Results of a method of 4-corner arthrodesis using headless compression screws. J Hand Surg Am. 2012;37(3):486–492. 2. Wheeler DL, McLoughlin SW. Biomechanical assessment of … hedi ben brahim