Does preoperative glenoid bony defect determine final coracoid graft positioning in arthroscopic Latarjet?

Background: It has been demonstrated that the accurate positioning of the graft is key to restoring shoulder stability and preventing future arthrosis development. Preoperative anteroinferior glenoid bone loss is frequently encountered when performing a Latarjet, and it has not been determined yet i...

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Main Authors: Maria Valencia, MD, P0hD, Ulrike Novo Rivas, MD, Claudio Calvo, MD, Natalia Martínez-Catalán, MD, Gonzalo Luengo-Alonso, MD, Diana Morcillo Barrenechea, MD, Antonio M. Foruria de Diego, MD, PhD, Emilio Calvo, MD, PhD
Format: Article
Language:English
Published: Elsevier 2023-05-01
Series:JSES International
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Online Access:http://www.sciencedirect.com/science/article/pii/S2666638323000518
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author Maria Valencia, MD, P0hD
Ulrike Novo Rivas, MD
Claudio Calvo, MD
Natalia Martínez-Catalán, MD
Gonzalo Luengo-Alonso, MD
Diana Morcillo Barrenechea, MD
Antonio M. Foruria de Diego, MD, PhD
Emilio Calvo, MD, PhD
author_facet Maria Valencia, MD, P0hD
Ulrike Novo Rivas, MD
Claudio Calvo, MD
Natalia Martínez-Catalán, MD
Gonzalo Luengo-Alonso, MD
Diana Morcillo Barrenechea, MD
Antonio M. Foruria de Diego, MD, PhD
Emilio Calvo, MD, PhD
author_sort Maria Valencia, MD, P0hD
collection DOAJ
description Background: It has been demonstrated that the accurate positioning of the graft is key to restoring shoulder stability and preventing future arthrosis development. Preoperative anteroinferior glenoid bone loss is frequently encountered when performing a Latarjet, and it has not been determined yet if the amount of bony defect can influence graft positioning. The aim of the study was to determine if a preoperative glenoid bony defect has an influence on the final coracoid graft position in the arthroscopic Latarjet procedure. Methods: Fifty-five patients who underwent the arthroscopic Latarjet procedure were included, with a minimum follow-up of 2 years. There were 51 men (92.7%). Mean age was 29.1 (SD 7.63). Western Ontario Shoulder Instability Index, Rowe, and Single Assessment Numeric Evaluation scores were fulfilled. All measurements were performed by a musculoskeletal radiologist based on a multiplanar bidimensional CT scan. Dimensions of the glenoid, glenoid defect, and glenoid track were calculated. Position of the graft was evaluated in the axial (distance to glenoid surface, angulation of the graft and screws) and sagittal planes (percentage of the coracoid graft below the equator) as described by Kany et al and Barth et al respectively. Results: There was a glenoid defect in 41 patients (74.5 %). Mean width of the defect was 4.32 mm (SD 3.08) which represented 15.3% of the native glenoid surface (SD 10.8). 78.2% of the patients were offtrack preoperatively, and 11.9% remained offtrack postoperatively. The final glenoid diameter with the graft was 32.1 mm (SD 4.34). Mean distance from the graft to the glenoid at 50% height was 1.1 mm (SD 2.19 mm) and at 25% height was 1.31 mm (SD 2.05). Mean angulation of the superior and inferior screws were 26.9° (SD 8.2°) and 27.1° (SD 7.35°), respectively. In 81.8% of the cases, the graft was deemed to be flush with the glenoid. The percentage of the coracoid graft under the equator of the glenoid was 71.2 % (SD 21.8). There was not a statistically significant difference in screw angulation or graft positioning in the axial plane when comparing patients who had a glenoid defect with those who did not, or depending on the size (P > .05). Percentage of graft below the equator was, however, lower in patients without bony defect (P = .04). Conclusion: This study showed that accurate position of the coracoid graft is achieved in the presence of a glenoid bony defect. In the cases of intact glenoid, the height of the graft should be carefully evaluated.
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spelling doaj.art-f93ea2b13dae49cf96113a653d7daef62023-04-28T08:56:34ZengElsevierJSES International2666-63832023-05-0173393398Does preoperative glenoid bony defect determine final coracoid graft positioning in arthroscopic Latarjet?Maria Valencia, MD, P0hD0Ulrike Novo Rivas, MD1Claudio Calvo, MD2Natalia Martínez-Catalán, MD3Gonzalo Luengo-Alonso, MD4Diana Morcillo Barrenechea, MD5Antonio M. Foruria de Diego, MD, PhD6Emilio Calvo, MD, PhD7Shoulder an Elbow Surgery Unit, Orthopaedics Hospital Universitario Fundación Jiménez Díaz, Madrid, Spain; Corresponding author: Maria Valencia, MD, PhD, Hospital Universitario Fundación Jiménez Díaz, Avenida Reyes Católicos, Num 2 28040, Madrid, Spain.Musculoskeletal Radiology Department, Hospital Universitario Fundación Jiménez Díaz, Madrid, SpainShoulder an Elbow Surgery Unit, Orthopaedics Hospital Universitario Fundación Jiménez Díaz, Madrid, SpainShoulder an Elbow Surgery Unit, Orthopaedics Hospital Universitario Fundación Jiménez Díaz, Madrid, SpainShoulder an Elbow Surgery Unit, Orthopaedics Hospital Universitario Fundación Jiménez Díaz, Madrid, SpainShoulder an Elbow Surgery Unit, Orthopaedics Hospital Universitario Fundación Jiménez Díaz, Madrid, SpainShoulder an Elbow Surgery Unit, Orthopaedics Hospital Universitario Fundación Jiménez Díaz, Madrid, SpainShoulder an Elbow Surgery Unit, Orthopaedics Hospital Universitario Fundación Jiménez Díaz, Madrid, SpainBackground: It has been demonstrated that the accurate positioning of the graft is key to restoring shoulder stability and preventing future arthrosis development. Preoperative anteroinferior glenoid bone loss is frequently encountered when performing a Latarjet, and it has not been determined yet if the amount of bony defect can influence graft positioning. The aim of the study was to determine if a preoperative glenoid bony defect has an influence on the final coracoid graft position in the arthroscopic Latarjet procedure. Methods: Fifty-five patients who underwent the arthroscopic Latarjet procedure were included, with a minimum follow-up of 2 years. There were 51 men (92.7%). Mean age was 29.1 (SD 7.63). Western Ontario Shoulder Instability Index, Rowe, and Single Assessment Numeric Evaluation scores were fulfilled. All measurements were performed by a musculoskeletal radiologist based on a multiplanar bidimensional CT scan. Dimensions of the glenoid, glenoid defect, and glenoid track were calculated. Position of the graft was evaluated in the axial (distance to glenoid surface, angulation of the graft and screws) and sagittal planes (percentage of the coracoid graft below the equator) as described by Kany et al and Barth et al respectively. Results: There was a glenoid defect in 41 patients (74.5 %). Mean width of the defect was 4.32 mm (SD 3.08) which represented 15.3% of the native glenoid surface (SD 10.8). 78.2% of the patients were offtrack preoperatively, and 11.9% remained offtrack postoperatively. The final glenoid diameter with the graft was 32.1 mm (SD 4.34). Mean distance from the graft to the glenoid at 50% height was 1.1 mm (SD 2.19 mm) and at 25% height was 1.31 mm (SD 2.05). Mean angulation of the superior and inferior screws were 26.9° (SD 8.2°) and 27.1° (SD 7.35°), respectively. In 81.8% of the cases, the graft was deemed to be flush with the glenoid. The percentage of the coracoid graft under the equator of the glenoid was 71.2 % (SD 21.8). There was not a statistically significant difference in screw angulation or graft positioning in the axial plane when comparing patients who had a glenoid defect with those who did not, or depending on the size (P > .05). Percentage of graft below the equator was, however, lower in patients without bony defect (P = .04). Conclusion: This study showed that accurate position of the coracoid graft is achieved in the presence of a glenoid bony defect. In the cases of intact glenoid, the height of the graft should be carefully evaluated.http://www.sciencedirect.com/science/article/pii/S2666638323000518Arthroscopic LatarjetCoracoid graft positioningConsolidation rateShoulder instabilityRecurrence rateArthritis
spellingShingle Maria Valencia, MD, P0hD
Ulrike Novo Rivas, MD
Claudio Calvo, MD
Natalia Martínez-Catalán, MD
Gonzalo Luengo-Alonso, MD
Diana Morcillo Barrenechea, MD
Antonio M. Foruria de Diego, MD, PhD
Emilio Calvo, MD, PhD
Does preoperative glenoid bony defect determine final coracoid graft positioning in arthroscopic Latarjet?
JSES International
Arthroscopic Latarjet
Coracoid graft positioning
Consolidation rate
Shoulder instability
Recurrence rate
Arthritis
title Does preoperative glenoid bony defect determine final coracoid graft positioning in arthroscopic Latarjet?
title_full Does preoperative glenoid bony defect determine final coracoid graft positioning in arthroscopic Latarjet?
title_fullStr Does preoperative glenoid bony defect determine final coracoid graft positioning in arthroscopic Latarjet?
title_full_unstemmed Does preoperative glenoid bony defect determine final coracoid graft positioning in arthroscopic Latarjet?
title_short Does preoperative glenoid bony defect determine final coracoid graft positioning in arthroscopic Latarjet?
title_sort does preoperative glenoid bony defect determine final coracoid graft positioning in arthroscopic latarjet
topic Arthroscopic Latarjet
Coracoid graft positioning
Consolidation rate
Shoulder instability
Recurrence rate
Arthritis
url http://www.sciencedirect.com/science/article/pii/S2666638323000518
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