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Case Reports
. 2020 Nov 3:30:100372.
doi: 10.1016/j.tcr.2020.100372. eCollection 2020 Dec.

CT image evaluation of one-screw fixation in the Latarjet procedure

Hiromichi Omae  1
Affiliations
Case Reports

CT image evaluation of one-screw fixation in the Latarjet procedure

Hiromichi Omae. Trauma Case Rep. .

Erratum in

Abstract

Background: In the Latarjet procedure, two screws are used for secure fixation. However, when the graft is small, two-screw fixation is technically difficult. The purpose of this study was to evaluate the bone union of one-screw fixation on CT images.

Methods: Ten shoulders with anterior recurrent dislocation underwent the open Latarjet procedure using one-screw fixation combined with arthroscopic Bankart repair. The bone union and the graft position were evaluated on CT images at 3, 6, and 12 months after the operation.

Results: Seven of 10 shoulders showed bone union at 3 months after the operation. In two shoulders, the removal of cortex was insufficient, and bone union was observed at 6 months. In one shoulder, the distal part of the graft was not in contact with the glenoid, and bone union was observed at 12 months. In one shoulder, the graft was healed in a 70-degree-rotated position. The average thickness of the graft was 7.2 ± 1.0 mm.

Conclusion: One-screw fixation in the Latarjet procedure did not show non-union. Sufficient removal of the graft cortex and good contact were needed for early union.

Keywords: Anterior instability; Bankart repair; Bone union; CT images; Latarjet procedure; One-screw fixation.

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Conflict of interest statement

None.

Figures

Fig. 1
Fig. 1
CT images at 3 months: 7 shoulders showed bone union at 3 months.
Fig. 2
Fig. 2
CT images at 3 months: 2 shoulders showed insufficient bone union at 3 months, due to insufficient removal of the bone cortex (white arrow).
Fig. 3
Fig. 3
CT images at 3 and 6 months: 1 shoulder showed insufficient bone union at 6 months, due to the less contact.
Fig. 4
Fig. 4
3D-CT images at pre-op., 3 and 6 months after op.: 1 shoulder showed the graft fixation at 70 degrees rotated position (black arrow), and the global bone resorption at 6 months.
Fig. 5
Fig. 5
3D-CT images at 3 and 6 months: 9 shoulders showed the slight bone resorption at the proximal end of the graft at 6 months.
Fig. 6
Fig. 6
The average thickness of the graft was 7.2 ± 1.0 mm.
See this image and copyright information in PMC

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