The path of screw insertion for stabilization of the scapholunate joint. A radiological study

Murphy, Luke; Oliver, Flannery; O’Sullivan, Michael E.

doi:10.1177/1753193412460811

Cited by 1 publication

(2 citation statements)

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“…9 In these techniques a radial styloidectomy was performed, as necessary, and the screw was inserted from the midportion of the scaphoid and passed parallel to the normal radial inclination traversing towards the medial pole of the lunate, under radiological guidance. In our radiological study 12 we found that in 33% of cases the line of best fit did not pass through the lunate vertex. In these cases if the screw was placed in the line aiming towards the lunate vertex, we would be concerned that the screw would perforate the articular surfaces.…”

Section: Discussionmentioning

confidence: 65%

“…11 In our radiological report, 12 where the radial and ulnar styloids were used as landmarks, the best path of screw insertion was commencing at the radial styloid and aiming on average 5 degrees volar and 4 mm proximal to the ulnar styloid. However, these exact measurements would be difficult to obtain accurately and a neutral alignment from the tip of the radial to ulnar styloid would be more easily reproducible.…”

Section: Introductionmentioning

confidence: 86%

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The Path of Screw Insertion for Stabilization of the Scapholunate Joint: A Cadaveric Study

et al. 2014

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The aim of this study was to determine the path of screw placement to avoid breaching the articular surface of both lunate and scaphoid bones at the radiocarpal and midcarpal joints. An Acutrak screw was inserted into the right scapholunate joint of ten cadavers starting immediately distal to the tip of the radial styloid and aiming for the tip of the ulnar styloid. The articular surfaces of the scaphoid and lunate bones in all ten cadavers were exposed and examined. A computed tomography (CT) scan of four wrists was performed. Eight of the ten cadavers had no perforation or destruction of the articular surfaces. Screw stabilization of the scapholunate joint can be performed without perforation or destruction of the lunate or scaphoid surfaces. We recommend that if this form of fixation is being used then the screw should be inserted commencing at the radial styloid tip and aiming for ulnar styloid tip, under radiological guidance.

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Section: Discussionmentioning

confidence: 65%

Section: Introductionmentioning

confidence: 86%