Revision of Failed Total Hip Arthroplasty Acetabular Cups to Porous Tantalum Components: A 5-Year Follow-Up Study
Section snippets
Materials and Methods
Between July 2000 and December 2002, 263 consecutive patients across 5 surgical centers underwent revision of a failed acetabular component in which TM acetabular components were used. Patients presenting with infection, tumors, irradiated pelvis, and patients receiving antitumor drugs were excluded from this series. There were 150 women and 113 men with a mean age of 69.5 years (range, 39-84 years) at the time of revision (Table 1). The mean time from the previous procedure to revision was 8.9
Results
The overall mean follow-up was 73.6 months (range, 60-84 months), and no patient was lost to follow-up. There were 6 deaths unrelated to the revision procedure (2.3%). However, the clinical and radiologic assessments for all 6 patients were collected within the minimum 5-year follow-up period and were subsequently included in this study.
The preoperative HHS rating improved from a mean of 43.6 ± 11.4 (range, 23-62) before revision, to a mean of 82.1 ± 10.7 (range, 48-96) at 1 year after revision
Discussion
Although acetabular revision is a technically demanding operation, our results show that acetabular composite stability and durability can be achieved when using tantalum acetabular components. The rate of success with tantalum components is also similar to that achieved with the custom-made triflange cup [15] and higher than that reached with conventional or extra large cementless cups supplemented by screws, morsellized or structural allografts, and reconstruction rings or cages 17, 18, 47.
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2018, International Journal of Surgery Case ReportsCitation Excerpt :However, reported outcomes of THA with cement for patients with an irradiated pelvis have been disappointing [4,5,7]. With the recent advent of tantalum trabecular metal cups and its material properties of a high coefficient of friction and high in vivo ingrowth potential, it has become a valid treatment option in situations like complex THA revisions [8–10] and in irradiated recipient bone [11,12]. Thus, we present a case report of post-irradiation (for cervical cancer) bilateral THA loosening due to deficient acetabular osseointegration causing aseptic acetabular loosening on one side and catastrophic septic loosening with a Paprosky type IIIB acetabular defect with pelvic discontinuity on the contralateral side.
Reconstruction for pelvic discontinuity and massive acetabular defects
2020, Revista Espanola de Cirugia Ortopedica y Traumatologia
No benefits or funds were received in support of the study.