Acetabular revisions using porous tantalum components: A retrospective study with 5-10 years follow-up

查看全文 作　　者：Francesco Roberto [1]Evola;Luciano [1]Costarella;Giuseppe [1]Evola;Martina [2]Barchitta;Antonella [2]Agodi;Giuseppe [1]Sessa

机构地区：[1]Department of Surgery, Orthopaedic Clinic, University of Catania;[2]Department of Medical and Surgical Sciences and Advanced Technologies 'GF Ingrassia', University of Catania

出　　处：《World Journal of Orthopedics》索引2017年第8卷第7期,共8页

摘　　要：AIM To evaluate the clinical and X-ray results of acetabular components and tantalum augments in prosthetic hip revisions.METHODS Fifty-eight hip prostheses with primary failure of the acetabular component were reviewed with tantalum implants. The clinical records and X-rays of these cases were retrospectively reviewed. Bone defect evaluations were based on preoperative CT scans and classified according to Paprosky criteria of Radiolucent lines and periprosthetic gaps; implant mobilization and osteolysis were evaluated by X-ray. An ad hoc database was created and statistical analyses were performed with SPSS software(IBM SPSS Statistics for Windows, version 23.0). Statistical analyses were carried out using the Student's t test for independent and paired samples. A P value of < 0.05 was considered statistically significant and cumulative survival was calculated by the KaplanMeier method.RESULTS The mean follow-up was 87.6 ± 25.6 mo(range 3-120 mo). 25 cases(43.1%) were classified as minor defects, and 33 cases(56.9%) as major defects. The preoperative HHS rating improved significantly from a mean of 40.7 ± 6.1(range: 29-53) before revision, to a mean of 85.8 ± 6.1(range: 70-94) at the end of the follow-up(Student's t test for paired samples: P < 0.001). Considering HHS only at the end of follow-up, no statistically significant difference was observed between patients with a major or minor defect(Student's t test for independent samples: P > 0.05). Radiolucent lines were found in 4 implants(6.9%). Postoperative acetabular gaps were observed in 5 hips(8.6%). No signs of implant mobilization or areas of periprosthetic osteolysis were found in the x-rays at the final follow-up. Only 3 implants failed: 1 case of infection and 2 cases of instability. Defined as the end-point, cumulative survival at 10 years was 95%(for all reasons) and 100% for aseptic loosening of the acetabular component.CONCLUSION The medium-term use of prosthetic tantalum components in prosthetic hip revisions is safe and effective in a wide variety of acetabular bone defects. 关键词：Porous TANTALUM Bone defect ACETABULAR revision OSSEOINTEGRATION Biological FIXATION Augment RETROSPECTIVE study

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Acetabular revisions using porous tantalum components: A retrospective study with 5-10 years follow-up

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