Bawale Rajesh, Choudhry Baseem, Samsani Srinivasa
Department of Trauma and Orthopaedics, Medway Maritime Hospital, Windmill Road, Gillingham, ME7 5NY, UK.
, Chigwell, UK.
Arthroplasty. 2021 Oct 9;3(1):42. doi: 10.1186/s42836-021-00099-z.
The cementless acetabular implants are commonly used in primary and revision hip arthroplasty. Reconstruction of acetabulum in case of bone defects can be challenging. The aims of this single center study are to review the mid-term outcomes of porous tantalum cups (TM) and evaluate complications.
The midterm outcome of a trabecular metal tantalum modular uncemented cup was evaluated in 59 hips in 58 patients. In our group, we had 23 males and 35 females. The mean age was 70.11 years (range, 30 to 87 years). Four patients were lost to follow-up and 13 died during the period without having further surgeries attributed to the hip arthroplasty. The remaining 41 patients (42 revision hip arthroplasties) had complete data available.
The mean follow-up was 87 months, ranging from 24 to 144 months. Standard pelvic anteroposterior (AP) radiographs were used to assess and preoperatively classify acetabular defects as per Paprosky classification. The serial radiographs showed excellent stability, bone opposition and graft incorporation. Four patients had further surgeries. Two of these were due to infection (one superficial and one deep infection). One of the patients had washout and then removal of metal work, the other patient only had a washout and symptoms settled. One patient had vascular compromise and went for surgery to stem the bleeding. One patient had re-revision due to stem loosening and hence required surgery but the revision cup remained stable. We noted a 96% survival at an average of 7.2 years follow-up.
The mid-term results with the trabecular metal cementless cup appeared to be promising in both primary and revision hip arthroplasty, even in the presence of considerable bone loss which requires bone grafting and augments.
IV.
非骨水泥型髋臼假体常用于初次及翻修髋关节置换术。髋臼骨缺损时的重建具有挑战性。本单中心研究的目的是回顾多孔钽杯（TM）的中期疗效并评估并发症。
对58例患者的59髋小梁金属钽模块化非骨水泥杯的中期疗效进行评估。我们组中有23例男性和35例女性。平均年龄为70.11岁（范围30至87岁）。4例患者失访，13例在随访期间死亡，均未因髋关节置换术进行进一步手术。其余41例患者（42髋翻修髋关节置换术）有完整可用数据。
平均随访87个月，范围为24至144个月。使用标准骨盆前后位（AP）X线片评估并根据Paprosky分类对术前髋臼缺损进行分类。系列X线片显示出极佳的稳定性、骨对合及植骨融合情况。4例患者进行了进一步手术。其中2例是由于感染（1例表浅感染和1例深部感染）。1例患者进行了清创并取出金属植入物，另1例患者仅进行了清创，症状缓解。1例患者出现血管受压，进行了手术止血。1例患者因股骨柄松动进行了再次翻修，因此需要手术，但翻修杯保持稳定。我们发现在平均7.2年的随访中生存率为96%。
小梁金属非骨水泥杯在初次及翻修髋关节置换术中的中期结果似乎很有前景，即使存在需要植骨和增加骨量的大量骨质流失情况。
IV级
