Analyse comparative 3D de la glène normale chez le Japonais et le Français - 23/11/17
Three-dimensional assessment of the normal Japanese glenoid and comparison with the normal French glenoid
, S. Nonaka b, R. Ozaki a, M. Yoshida c, M. Yoneda d, G. Walch eAbstract |
Introduction |
In 2014, reverse total shoulder arthroplasty was approved in Japan. We were concerned that the baseplate might be incompatible with Japanese who were generally smaller than Westerners. Therefore, we investigated the dimensions and morphology of the normal Japanese glenoid and compare with the normal French glenoid.
Materials and methods |
One hundred Japanese shoulders without glenoid lesions (50 men and 50 women) were investigated and compared with 100 French shoulders (50 men and 50 women). Computed tomography was performed with 3-dimensional image reconstruction and images were analyzed using Glenosys software. Glenoid parameters (width, height, retroversion and inclination) were compared between Japanese and French subjects.
Results |
In Japanese subjects, the mean glenoid width was 25.5mm, height was 33.3mm, retroversion was 2.3° and inclination was 11.6° superiorly. In French subjects, the mean glenoid width was 26.7mm, height was 35.4mm, retroversion was 6.0° and inclination was 10.4° superiorly. Glenoid width and height were significantly smaller in Japanese subjects than French subjects (P=0.001 and P<0.001), while retroversion was significantly greater in French subjects (P<0.001). There was no significant difference of inclination.
Conclusions |
These findings will help surgeons to identify suitable patients for RSA and perform the procedure with appropriate preoperative planning.
Level of evidence |
IV: retrospective or historical series.
Le texte complet de cet article est disponible en PDF.Keywords : Glenoid dimensions, Glenoid morphology, Three-dimensional CT, Reverse total shoulder arthroplasty
| ☆ | Cet article peut être consulté in extenso dans la version anglaise de la revue Orthopaedics & Traumatology: Surgery & Research sur Science Direct (sciencedirect.com) en utilisant le DOI ci-dessus. |
Vol 103 - N° 8
P. 920 - décembre 2017 Retour au numéro
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