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Updated: Aug 14, 2026

Individualized Stem-positioning in Calcar-guided Short-stem Total Hip Arthroplasty
Published on: February 27, 2018
[Radiological appearance of the cementless ALLOCLASSIC SL-stem implanted in very old patients with primary hip
H Pieringer1, V Auersperg, G Labek
1Orthopädische Abteilung Allgemeines Krankenhaus Linz, Osterreich. herwigpi@yahoo.com
Aim:
The radiological appearance of the cementless ALLOCLASSIC SL-stem, implanted in patients with primary osteoarthritis of the hip and aged at least 80 years at time of surgery, was investigated.
Method:
66 hips in 58 patients were analysed. 17 patients (19 hips) died in the interim, 5 patients (5 hips) were not available for follow-up because of health reasons (4) or lack of co-operation (1). 1 stem had to be explanted after a periprosthetic fracture of the femur. Finally, 41 total hip arthroplasties in 35 patients could be analysed after an average of 67.9 months (39.2-93.4).
Results:
Bone atrophy - especially in the proximal Gruen zones - was frequently found. In contrast, radiolucent lines and osteolyses were rare occurrences. The Harris Hip score was preoperatively on average 33.0 points, at time of follow-up 81.7 points. The survival rate (endpoint aseptic loosening) was 100 % after a mean follow-up of 5.7 years.
Conclusion:
Also in very old patients the implantation of a cementless stem is possible and provides very good results.

