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Knorpelschäden nach Druckbelastung mit subchondral eingebauten Implantaten

Cartilage damage due to subchondral implants under loading

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Summary

Background: Subchondral implants alter the stress distribution in the cancellous bone and induce damage to the overlying cartilage.

Methods: 100 consecutive cases of lateral tibial condyle fractures treated with osteosynthesis were selected. Two groups were established: group I. with 64 cases and metal removal within 12 months, and group II with 36 cases and metal removal after 12 months post operatively. After 5 years on follow up examination and X-ray evaluation the rate of arthrosis was assessed in both groups.

Results: In group II the rate of osteoarthrosis was significantly higher than in the group I.

Conclusions: Subchondraly placed metal implants in the lower extermity should be removed within 12 months post operatively.

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Literatur

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    Richtlinien der schweizerischen AO für die Nachbehandlung operativ versorgter Frakturen — Rüedi Th, Allgöwer M, 1975.

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Farkas, T., Melly, A., Martsa, B. et al. Knorpelschäden nach Druckbelastung mit subchondral eingebauten Implantaten. Acta Chir. Austriaca 32, 122–123 (2000). https://doi.org/10.1007/BF02949895

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