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SA Orthopaedic Journal

On-line version ISSN 2309-8309
Print version ISSN 1681-150X


DE WET, Japie J et al. Do anatomical contoured plates address scapula body, neck and glenoid fractures? A multi-observer consensus study. SA orthop. j. [online]. 2021, vol.20, n.4, pp.213-218. ISSN 2309-8309.

BACKGROUND: The surgical management of scapula body, neck and glenoid fractures remains a challenge. This study focuses on templating an available anatomical pre-contoured plating system using three-dimensional (3D)-printed scapulae to assess the ability of these plates to address the aforementioned fractures and to determine consensus on classifying scapula body, neck and glenoid fractures. METHODS: We used a cohort of 22 3D-printed scapulae prototypes and an available anatomical pre-contoured plating system to determine anatomical congruency and fit. Nine investigators templated the scapulae using four pre-contoured plates, and the investigators classified the 22 scapulae using the Ideberg and AO/OTA classification system. RESULTS: Eleven out of 22 fractures were found to be fixable using the plates under study. The long lateral plate addressed 83% of fractures involving the lateral border, while the glenoid plate was unable to adequately address any glenoid fractures. We observed good to excellent (p < 0.001) interobserver reliability for three of the four plates. The interobserver reliability was moderate (ICC = 0.74) for the AO/OTA classification and good (ICC = 0.88) for the Ideberg classification. CONCLUSION: We believe that the anatomical pre-contoured plating system does not address all the fracture patterns encountered in clinical practice and further development in plate design is required. There is good to moderate interobserver reliability using the Ideberg fracture classification for intra-articular fractures and the AO/OTA classification for extra-articular fractures involving the body. Level of evidence: Level 3

Keywords : scapula fracture; open reduction and internal fixation (ORIF); South Africa; scapula plate analysis; 3D printing; fracture classification.

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