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Orthopaedics
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Femoral stem - cemented
The Exeter stem has been in clinical use for well over 30 years now with an excellent track record in terms of its lack of requirement for revision. Long-term follow-up of patients has shown a 90% stem survivorship and 70% cup survivorship at 30 years. Our experience at Freeman Hospital in Newcastle over 15 years from 1998 – 2012 has been very similar. Of approximately 2000 Primary THR Exeter stems performed in this time, no femoral stem has been revised for aseptic loosening. Of the acetabular components, 150 ABG (Stryker) uncemented cups used between 1999 and 2000, none have been revised for loosening or wear. The remaining 2850 majority were cemented cups and of these 4 have subsequently required revision for aseptic loosening.
Our experience at Freeman Hospital in Newcastle over 15 years from 1998 – 2012 has been very similar. Of approximately 2000 Primary THR Exeter stems performed in this time, no femoral stem has been revised for aseptic loosening. Of the acetabular components, 150 ABG (Stryker) uncemented cups used between 1999 & 2000, none have been revised for loosening or wear. The remaining 2850 majority were cemented cups and of these 4 have subsequently required revision for aseptic loosening.
Conventionally, this stem is well suited to the posterior approach and standard advanced cementation techniques. The design is easy to learn, use and teach thus giving reproducibly reliable outcomes as confirmed in the UK National Joint Registry.
Click to view graph (Figure 1).
Sizing: range of sizes and intra-operive versatility should be your friend, but as with all things, if not used correctly can result in errors.
Figure 9 & Figure 10: DDH case – small socket – 40/22mm required. Leg length restored. Modularity of head sizes and offsets allows accurate restoration of leg length and offset.
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