A Novel Radiological Classification System of the Proximal Humerus.

Autor:	Sangaletti R; Sezione Di Chirurgia Protesica Ad Indirizzo Robotico - Unità Di Traumatologia Dello Sport, Poliambulanza Foundation Hospital Institute, Brescia, Italy.; Department of Orthopaedic Surgery, HELIOS ENDO-Klinik Hamburg, Hamburg, Germany., Abuljadail S; Orthopaedic Surgery, King Faisal University, Hofuf, Saudi Arabia.; Department of Orthopaedic Surgery, HELIOS ENDO-Klinik Hamburg, Hamburg, Germany., Akkaya M; Department of Orthopaedic Surgery, HELIOS ENDO-Klinik Hamburg, Hamburg, Germany.; Department of Orthopaedics and Traumatology, Ankara Yildirim Beyazit Universitesi Tip Fakultesi, Ankara, Turkey., Zanna L; Department of Orthopaedic Surgery, HELIOS ENDO-Klinik Hamburg, Hamburg, Germany., Gehrke T; Department of Orthopaedic Surgery, HELIOS ENDO-Klinik Hamburg, Hamburg, Germany., Citak M; Department of Orthopaedic Surgery, HELIOS ENDO-Klinik Hamburg, Hamburg, Germany.
Jazyk:	angličtina
Zdroj:	Zeitschrift fur Orthopadie und Unfallchirurgie [Z Orthop Unfall] 2024 Dec; Vol. 162 (6), pp. 600-605. Date of Electronic Publication: 2023 Nov 08.
DOI:	10.1055/a-2195-0914
Abstrakt:	Different anatomical variants have been reported for the proximal and distal femur. Given this context, the goal of our study was to answer the following question: Can we also identify different anatomical variants of the proximal humerus?Two hundred anteroposterior (AP) radiographs of the proximal humerus with an equal gender distribution and equal laterality per gender were reviewed. The metaphyseal diameter of the proximal humerus at the level of the anatomical neck (X) and the intramedullary diameter at 10 cm from the apex of the greater tuberosity (Y) were measured. A new ratio was established, based on both measurements (Y/X). Radiographs showed different anatomical variants: type A: Y/X < 0.3, type B: Y/X = 0.3-0.4, type C: Y/X > 0.4. Two observers reviewed the AP radiographs independently and blindly in 2 different sessions.Three different anatomical groups (A, B and C) were identified based on the 25th and 75th percentiles. A higher percentage of type C was observed among females and a higher percentage of type A among males. A high inter-observer reliability was noted, with a Cronbach's alpha of 0.97 (ICC 0.96-0.98). The intra-observer reliability for observer 1 had a Cronbach's alpha of 0.98.A novel radiological classification of the proximal humerus has been established based on 3 different anatomical types (A, B and C). Further studies are needed to establish whether the novel classification system can be used as an indicator for aseptic loosening of cemented or cementless total shoulder arthroplasty. Competing Interests: The authors declare that they have no conflict of interest. (Thieme. All rights reserved.)
Databáze:	MEDLINE
Externí odkaz:	Zobrazit plný text záznamu