A 28-year clinical and radiological follow-up of alumina ceramic-on-crosslinked polyethylene total hip arthroplasty A FOLLOW-UP REPORT AND ANALYSIS OF THE OXIDATION OF A SHELF-AGED ACETABULAR COMPONENT

作者：Rajpura A^*; Board T N; Siney P D; Jones H Wynn; Williams S; Dabbs L; Wroblewski B M

来源：Bone & Joint Journal, 2017, 99B(10): 1286-1289.

Aims
Our aim in this study was to describe a continuing review of 11 total hip arthroplasties using 22.225 mm Alumina ceramic femoral heads on a Charnley flanged femoral component, articulating against a silane crosslinked polyethylene.
Patients and Methods
Nine patients (11 THAs) were reviewed at a mean of 27.5 years (26 to 28) post-operatively. Outcome was assessed using the d'Aubigne and Postel, and Charnley scores and penetration was recorded on radiographs. In addition, the oxidation of a 29-year-old shelf-aged acetabular component was analysed.
Results
The mean clinical outcome scores remained excellent at final follow-up. The mean total penetration remained 0.41 mm (0.40 to 0.41). There was no radiographic evidence of acetabular or femoral loosening or osteolysis. There was negligible oxidation in the shelf-aged sample despite gamma irradiation and storage in air.
Conclusion
These results highlight the long-term stability and durability of this type of crosslinked, antioxidant containing polyethylene when used in combination with a small diameter alumina ceramic femoral head.

• 出版日期2017-10