Summary
In an experimental study in nine sheep, self-reinforced poly-L-lactic pins were used to fix subcapital femoral osteotomies. One out of three was consolidated at 3 weeks. At 6 weeks, one out of 3 had failed, and the other two were united by bone. At 12 weeks all the osteotomies had healed. These results showed that absorbable SR-PLLA pins could be used to fix this type of osteotomy.
Résumé
On a utilisé dans une étude expérimentale portant sur neuf moutons adultes des broches résorbables de poly-L-lactide (SR-PLLA) pour fixer des ostéotomies sous-capitales du fémur. Les examens radiographiques, microradiographiques et histologiques ont montré qu'à la troisième semaine l'ostéotomie était consolidée une fois sur trois, à la sixième semaine deux fois sur trois et à la douzième semaine dans tous les cas. Les résultats de cette étude montrent qu'il est possible d'utiliser des broches résorbables de SR-PLLA pour la fixation des ostéotomies fémorales sous-capitales, mais il semble nécessaire de réaliser des séries expérimentales plus importantes, en ayant recours à des implants améliorés.
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Vasenius, J., Laitinen, O., Pohjonen, T. et al. Fixation of subcapital femoral osteotomies by poly-L-lactic acid pins. International Orthopaedics 17, 144–147 (1993). https://doi.org/10.1007/BF00186374
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DOI: https://doi.org/10.1007/BF00186374