- 作者：Danielle J. Casagrande ; MD ; dcasagra@gmail.com" class="auth_mail" title="E-mail the corresponding author ; Di L. Parks ; MD ; Travis Torngren ; MD ; Mark A. Schrumpf ; MD ; Samuel M. Harmsen ; MD ; Tom R. Norris ; MD ; James D. Kelly II ; MD
- 关键词：Level IV ; Case Series ; Treatment Study
- 刊名：Journal of Shoulder and Elbow Surgery
- 出版年：2016
- 出版时间：July 2016
- 年：2016
- 卷：25
- 期：7
- 页码：1163-1169
- 全文大小：661 K
Methods
We reviewed our patient database, from January 2008 to December 2011, for primary total shoulder arthroplasties performed with a short-stem press-fit humeral component. Radiographs and clinical outcomes were evaluated in the immediate postoperative period and at the most recent follow-up, with at least 24 months of data for all patients.
Results
There were 73 shoulders that met our inclusion criteria, but 4 underwent revision before 2 years' follow-up. Only 1 of these 4 was revised for aseptic humeral loosening. Sixty-nine shoulders had at least 24 months of radiographic follow-up, and 62 had radiographic and clinical follow-up. Of the 69 shoulders, 5 underwent revision for humeral loosening: 1 for aseptic loosening and 4 for infection. Two other shoulders with humeral loosening were asymptomatic, and the patients refused revision surgery. The overall revision rate for humeral loosening was 8.2% (6 of 73 shoulders). Radiolucent zones of any size were seen in 71.0%, with 8.7% of these shoulders identified as having humeral stems at risk of future loosening. Significant improvements were made in most of the measured clinical outcomes.
Conclusions
A high percentage of radiolucency was seen around the short-stem press-fit humeral components evaluated in this study at short-term follow-up. The overall rates of loosening and revision for the humeral implant examined in this study are higher than those noted in other recent studies evaluating press-fit stems. The cause of radiolucency and humeral loosening for this implant is not fully understood.