Revista espanola de cirugia ortopedica y traumatologia · 2026
[Translated article] Influence of prosthetic lateralization on tuberosity healing in reverse shoulder arthroplasty for proximal humerus fractures.
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.
Gómez D J, Bermeo C, Viollaz G, Muratore A, Durán R, Teruya G, Tedeschi A, Moya D
Аннотация
INTRODUCTION: To evaluate the effect of prosthetic lateralization on tuberosity healing following reverse shoulder arthroplasty (RSA) for proximal humerus fractures (PHFs) in older adults.
MATERIAL AND METHODS: This single-center retrospective study included patients aged >65 years with displaced Neer 3- or 4-part PHFs treated with RSA within four weeks of injury. Patients were allocated according to the global lateralization of the prosthesis: very highly lateralized (VHL; 21.4mm, Arrow®, n=53) and lateralized (L; 14.7mm, Unique®, n=20). Tuberosity healing was assessed radiographically and classified as anatomic, non-anatomic, or failed consolidation. Statistical analysis was performed using Student's t-test or Mann-Whitney U test for continuous variables, and Chi-square or Fisher's exact test for categorical variables.
RESULTS: The final cohort consisted of 73 patients (62 women, 11 men) with a mean age of 76.2±6.9years. Overall tuberosity healing occurred in 60 patients (82.2%), while 13 (17.8%) demonstrated failed consolidation. The L group showed a significantly higher overall healing rate (100%) compared with the VHL group (75.5%; p=.020). Anatomic healing was achieved in 55% of the L group and 28% of the VHL group (p=.020). All failures occurred exclusively in the VHL cohort (24.5%). The overall complication rate was 6.8%, with no significant differences between groups.
CONCLUSION: Very high prosthetic lateralization (>20mm) is associated with reduced rates of anatomic tuberosity healing and a higher incidence of failed consolidation, likely due to increased mechanical tension that compromises osteointegration in osteoporotic bone.
MATERIAL AND METHODS: This single-center retrospective study included patients aged >65 years with displaced Neer 3- or 4-part PHFs treated with RSA within four weeks of injury. Patients were allocated according to the global lateralization of the prosthesis: very highly lateralized (VHL; 21.4mm, Arrow®, n=53) and lateralized (L; 14.7mm, Unique®, n=20). Tuberosity healing was assessed radiographically and classified as anatomic, non-anatomic, or failed consolidation. Statistical analysis was performed using Student's t-test or Mann-Whitney U test for continuous variables, and Chi-square or Fisher's exact test for categorical variables.
RESULTS: The final cohort consisted of 73 patients (62 women, 11 men) with a mean age of 76.2±6.9years. Overall tuberosity healing occurred in 60 patients (82.2%), while 13 (17.8%) demonstrated failed consolidation. The L group showed a significantly higher overall healing rate (100%) compared with the VHL group (75.5%; p=.020). Anatomic healing was achieved in 55% of the L group and 28% of the VHL group (p=.020). All failures occurred exclusively in the VHL cohort (24.5%). The overall complication rate was 6.8%, with no significant differences between groups.
CONCLUSION: Very high prosthetic lateralization (>20mm) is associated with reduced rates of anatomic tuberosity healing and a higher incidence of failed consolidation, likely due to increased mechanical tension that compromises osteointegration in osteoporotic bone.