Radiologic Comparison of Humeral Position according to the Implant Designs Following Reverse Shoulder Arthroplasty: Analysis between Medial Glenoid/Medial Humerus, Lateral Glenoid/Medial Humerus, and Medial Glenoid/Lateral Humerus Designs
Clinics in Shoulder and Elbow
; : 192-199, 2018.
Article
en En
| WPRIM
| ID: wpr-739746
Biblioteca responsable:
WPRO
ABSTRACT
BACKGROUND:
The currently available reverse shoulder arthroplasty (RSA) designs can be classified into medial glenoid/medial humerus (MGMH), lateral glenoid/medial humerus (LGMH), and medial glenoid/lateral humerus (MGLH) prosthesis designs. The purpose of this study was to radiologically analyze the effect of different RSA designs on humeral position following RSA.METHODS:
A total of 50 patients who underwent primary RSA were retrospectively analyzed. Among 50 patients, 33 patients (group A MGMH) underwent RSA with Aequalis system (Wright, Inc, Bloomington, MN, USA), 6 (group B LGMH) with Aequalis system using bony increased offset, and 11 (group C MGLH) with Aequalis Ascend Flex system. The acromiohumeral distance, acromioepiphyseal distance (AED), lateral humeral offset (LHO), LHO from the center of rotation (LHO(COR)), and deltoid length were radiologically measured to quantify the distalization and lateralization of the humerus.RESULTS:
The increment in postoperative AED was 19.92 ± 3.93 mm in group A, 24.52 ± 5.25 mm in group B, and 25.97 ± 5.29 mm in group C, respectively (p=0.001). The increment in postoperative LHO was 0.13 ± 6.30 mm, 8.00 ± 12.14 mm, and 7.42 ± 6.88 mm, respectively (p=0.005). The increment in postoperative LHOCOR was 20.76 ± 6.06 mm, 22.04 ± 5.15 mm, and 28.11 ± 4.14 mm, respectively (p=0.002).CONCLUSIONS:
The radiologic analysis of the effect of different RSA designs on humeral position following RSA showed significant differences in the increment in postoperative AED, LHO, and LHO(COR) between the 3 groups. Therefore, MGLH design seems to be more effective for humeral distalization and lateralization compared to original Grammont design.Palabras clave
Texto completo:
1
Base de datos:
WPRIM
Asunto principal:
Artroplastia
/
Diseño de Prótesis
/
Hombro
/
Estudios Retrospectivos
/
Húmero
Tipo de estudio:
Observational_studies
Límite:
Humans
Idioma:
En
Revista:
Clinics in Shoulder and Elbow
Año:
2018
Tipo del documento:
Article