Ergebnisse der totalen H�ftendoprothese

Report on 236 re-examined total hip arthroplasties performed between 3 and 6 years before (69 Huggler-Weber I and 167 McKee-Farrar joints). 76% of the patients were satisfied with their results on the base of acceptable pain control, increased joint mobility and improved functional capacity. Negative estimations usually could be verified by clinical and roentgenographic findings, the main reason for failures being aseptic loosening of one or both of the implant components in a present rate of 17.8%. Additional failures were due to infectious loosening (2.7%) and pararticular ossification (1.3%). Aseptic loosening of Weber-Huggler implants (33%) occured three times as often as with McKee-Farrar joints and usually was confined to the acetabulum. The influence of different factors such as patient's age and previous surgery, preoperative roentgenographic findings, etiology of coxarthrosis and operative technique has been evaluated. It is concluded that the present way of implant cementation with acrylics offers no sufficient long term anchorage and total hip arthroplasty therefore presently should be confined to the elderly. However, the results may be improved by strict indication and proper surgical technique.

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Oberschenkelschaftfrakturen nach Corticalisfensterung und deren Vermeidung

Konermann

1976

Arch orthop Unfall-Chir

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The problem of trepanation of the corticalis is investigated in 2 cases of femoral shaft fractures following a lateral trepanation of the femur, which can very often not be avoided in performing a necessary change of the hip prothesis. It can be demonstrated that because of the stress on the femur and its mechanical characteristics (material distribution, density distribution, breaking strength, "structure" strength and the histological structure), a lateral trepanation of the femoral corticalis is weakening the bone in its mechanically most stressed part whereas an anterior fenestration is mechanically much better. Considering the distribution of the strain in differently formed notches with rapid increase of strain with local rigidity in a pointed notch a mechanically much better rounding of the notch is suggested.

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Ergebnisse der totalen H�ftendoprothese

Cited by 17 publications

References 46 publications

Resektionsarthroplastik nach Girdlestone bei infizierter Hüfttotalprothese (Spätergebnisse)

Resektionsarthroplastik nach Girdlestone bei infizierter Hüfttotalprothese (Spätergebnisse)

Weitere Erfahrungen mit der Totalendoprothese des H�ftgelenks

Oberschenkelschaftfrakturen nach Corticalisfensterung und deren Vermeidung

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