Orthopaedic Clinic, IRCCS Hospital Policlinico San Martino, Genoa, Italy.
DISC - Department of Surgical Sciences and Integrated Diagnostics, University of Genoa, Italy.
Hip Int. 2023 Jul;33(4):664-671. doi: 10.1177/11207000221093248. Epub 2022 Apr 24.
The primary aim was to evaluate the long-term follow-up of Collum Femoris Preserving (CFP) stem, specifically focusing on stem survivorship, complications, as well as on clinical and radiological results. The secondary study objective is an age-based sub-analysis (<65 years vs. ⩾65 years) of long-term results.
We performed a retrospective analysis of patients who underwent CFP implantation between 1997 and 2009. A total of 311 patients (342 hips) were included with a mean follow-up of 15.8 ± 2.2 (range 11-24) years. 2 age groups were analysed: Group-Y (age <65) and Group-E (age ⩾65). Group-Y included 182 hips (mean follow-up 16.3 ± 4.2 years), whereas Group-E included 160 hips (mean follow-up 15.5 ± 3.7 years). Clinical (HHS, OHS and VAS) and radiological data were obtained at final follow-up. Any complications, reoperations, prosthetic components revisions and stem revisions were analysed.
According to HSS score, 95% of patients reported excellent/good results (95.6% Group-Y vs. 94.4% Group-E) with an overall stem survival rate of 93.3% (94% Group-Y vs. 92.5% Group-E; = 0.37). Overall, 87% of stem revisions were performed with primary stems. The rate of prosthetic components revision was 9.9 % (9.9% in Group-Y vs. 10% in Group-E; = 1). The reoperation rate was 10.8% (11.5% in Group-Y vs. 10.0% in Group-E; = 0.73).
The CFP stem provides good clinical and radiological long-term results with low rate of complications in both young and elderly patients. No significant difference in stem revision and reoperation rates was observed between the 2 groups. Both in elderly and young patients, CFP stem allows revisions to be performed with primary stems.
本研究的主要目的是评估 Collum Femoris Preserving（CFP）柄的长期随访结果，特别是关注柄的存活率、并发症以及临床和影像学结果。次要研究目的是对年龄分组（<65 岁与 ⩾65 岁）进行长期结果的亚分析。
我们对 1997 年至 2009 年间接受 CFP 植入的患者进行了回顾性分析。共纳入 311 例患者（342 髋），平均随访 15.8±2.2（11-24）年。我们分析了 2 个年龄组：组-Y（年龄 <65 岁）和组-E（年龄 ⩾65 岁）。组-Y 包括 182 髋（平均随访 16.3±4.2 年），组-E 包括 160 髋（平均随访 15.5±3.7 年）。最终随访时获取临床（HHS、OHS 和 VAS）和影像学数据。分析任何并发症、再次手术、假体组件翻修和柄翻修情况。
根据 HSS 评分，95%的患者报告了优秀/良好的结果（组-Y 为 95.6%，组-E 为 94.4%），总体柄存活率为 93.3%（组-Y 为 94%，组-E 为 92.5%； = 0.37）。总体而言，87%的柄翻修采用的是原始柄。假体组件翻修率为 9.9%（组-Y 为 9.9%，组-E 为 10%； = 1）。再次手术率为 10.8%（组-Y 为 11.5%，组-E 为 10.0%； = 0.73）。
CFP 柄在年轻和老年患者中均能提供良好的临床和影像学长期结果，并发症发生率低。两组间的柄翻修和再次手术率无显著差异。在老年和年轻患者中，CFP 柄均允许使用原始柄进行翻修。
