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Risk Factors for Flexor Pollicis Longus Rupture Following Volar Locking Plate Fixation for a Distal Radius Fracture : Efficacy of the Reduction and Distal Fixation First Technique Naoki KATO 1 , Hiroya SAKAI 1 1Department of Orthopaedic Surgery, Saitama Medical Center, Saitama Medical University Keyword: 橈骨遠位端骨折 , distal radius fracture , ロッキングプレート , locking plate , 屈筋腱皮下断裂 , flexor tendon rupture pp.287-295
Published Date 2013/3/25
DOI https://doi.org/10.11477/mf.1408102645

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  • Abstract
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 Background:Flexor tendon rupture has been recognized as a severe complication of volar locking plate fixation for distal radius fractures, and several factors, including improper reduction of the dorsal tilt, prominent screw heads, improper plate position, and insufficient soft-tissue covering over the distal part of the plate, have recently been described as suspected risk factors. Since a plate placed distal to the watershed line may come into contact with flexor tendons, many authors have stated that locking plates designed to be placed distal to the watershed line should not be used.

 Methods:We have encountered treated five cases of flexor pollicis longus (FPL) tendon rupture following volar locking plate fixation.

 Outcome:In three of the five cases protrusion of the distal-ulnar part of the plate due to insufficient reduction of the rotational displacement caused the FPL tendon rupture even though the locking plates were seated proximal to the watershed line.

 Conclusions:We therefore concluded that particular attention should be paid to proper placement of the distal part of the plate against the volar surface of the radius. We recommend fixing the distal part of the plate first after performing the anatomical reduction. The purpose of this report was to describe our experience with FPL tendon ruptures and to propose the reduction and distal fixation first technique as a reliable fixation technique.


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電子版ISSN 1882-1286 印刷版ISSN 0557-0433 医学書院

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