Shoulder & elbow · 2026
Clinical and radiographic outcomes of reverse shoulder arthroplasty performed with 40 mm polyethylene glenospheres vs. 36 mm cobalt chrome glenospheres at minimum 2-years follow-up.
СтатьяНазвание и аннотация: Перевод в очереди
Обработка статьи · этапы, ошибки и управление
Загрузка состояния…
Ошибки и ограничения
История · было → стало
Состояние обновляется каждые 5 секунд, пока блок открыт. Процент показывается только там, где известен объём работы. Пауза останавливает продолжение этапа; текущий запрос к источнику может завершиться.
Boekel Pamela, Piggott Robert P, Conyard Christopher, Bale Stephen, Walton Michael, Monga Puneet, Malhas Amar, Trail Ian A
Аннотация
INTRODUCTION: Most reverse total shoulder arthroplasty utilise a cobalt chrome (CoCr) glenosphere with a polyethylene liner. The Lima Shoulder Modular Replacement (SMR)™ platform has inverted the materials to potentially decrease polyethylene debris when the humeral liner contacts the scapula.
METHODS: This retrospective, multi-centre study was conducted to examine the equivalence of the Lima SMR™ 40 mm highly cross-linked polyethylene (XLPE) glenospheres to the 36 mm CoCr glenospheres, examining patients from 2013 to 2022 with a minimum of 2-year clinical and radiographic follow-up.
RESULTS: 199 patients were investigated: 107 with the XLPE glenosphere and 92 with the CoCr glenosphere. At 2-year follow-up, there was no significant difference in Oxford Shoulder scores (p = 0.081). There were more areas of glenoid radiolucency in the CoCr group (n = 18 zones in eight patients) at 2 years (z = -2.04, p = 0.04). There was no significant difference in notching (16% in the XLPE group, 20% in CoCr group (p = 0.190)). Two patients in the XLPE group were revised and five in the CoCr group.
DISCUSSION: XLPE glenosphere outcomes were largely equivalent to a CoCr glenosphere at 2 years. While the XLPE glenosphere had fewer major complications, this could be attributed to other factors including the larger diameter, rather than the polyethylene glenosphere.
LEVEL OF EVIDENCE: Level III - retrospective comparative study.
METHODS: This retrospective, multi-centre study was conducted to examine the equivalence of the Lima SMR™ 40 mm highly cross-linked polyethylene (XLPE) glenospheres to the 36 mm CoCr glenospheres, examining patients from 2013 to 2022 with a minimum of 2-year clinical and radiographic follow-up.
RESULTS: 199 patients were investigated: 107 with the XLPE glenosphere and 92 with the CoCr glenosphere. At 2-year follow-up, there was no significant difference in Oxford Shoulder scores (p = 0.081). There were more areas of glenoid radiolucency in the CoCr group (n = 18 zones in eight patients) at 2 years (z = -2.04, p = 0.04). There was no significant difference in notching (16% in the XLPE group, 20% in CoCr group (p = 0.190)). Two patients in the XLPE group were revised and five in the CoCr group.
DISCUSSION: XLPE glenosphere outcomes were largely equivalent to a CoCr glenosphere at 2 years. While the XLPE glenosphere had fewer major complications, this could be attributed to other factors including the larger diameter, rather than the polyethylene glenosphere.
LEVEL OF EVIDENCE: Level III - retrospective comparative study.