Impact of Screw Length on Proximal Scaphoid Fracture Biomechanics
نویسندگان
چکیده
منابع مشابه
Impact of Screw Length on Fixed Proximal Scaphoid Fracture Biomechanics: In Vitro Study with Cyclic Loading and Load to Failure
Introduction: Internal fixation used as treatment for scaphoid fractures has increased with advances in surgical techniques [1]. Proximal pole scaphoid fractures present a clinical challenge due to their lower success rate when cast immobilization and internal fixation are utilized [2]. Screws maximizing length have been shown to impact wrist motion for fixed scaphoid waist fractures [3]. Addit...
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We report a case of fixation of a scaphoid fracture using an Acutrak(®) screw. This screw is cannulated and headless, which allows it to be implanted below the surface of the bone. It uses the same concept of variable thread pitch as the Herbert screw, but unlike the Herbert screw, is fully threaded, with continuously varying pitch along its length. This variable pitch creates constant compress...
متن کاملThe Importance of Screw Design in Scaphoid Fracture Fixation
The purpose of this study was to determine the influence of gender, screw design, and the approach on maximal screw length in scaphoid fracture fixation. Measurements were performed on 3D reconstructions of 20 CT scans of normal scaphoids. A comparison was made between 15 different available screw designs and between volar and dorsal screw placement. The length of the scaphoid along its central...
متن کاملThe biomechanics of varied proximal locking screw configurations in a synthetic model of proximal third tibial fracture fixation.
OBJECTIVE To determine if 1) angularly stable devices created by compressing ("locking") proximal locking screws to intramedullary nails using end caps or compression screws or 2) increasing the number of proximal screws from two to three increases the stiffness of intramedullary constructs that stabilize proximal third tibia fractures in a nonosteopenic bone model. METHODS Four proximal lock...
متن کاملScaphoid fracture: functional outcome following fixation with Herbert Screw.
BACKGROUND Most scaphoid fractures though heal uneventfully with cast treatment, immobilization with cast is associated with complication like wrist stiffness. Open reduction and fixation with Herbert Screw though technically demanding procedure can yield excellent results and prevents complication like nonunions and loss of wrist function. OBJECTIVES To assess clinical outcome and radiologic...
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ژورنال
عنوان ژورنال: Journal of Wrist Surgery
سال: 2019
ISSN: 2163-3916,2163-3924
DOI: 10.1055/s-0039-1685514