Die PIP-Prothese – Was haben wir gelernt? Erfahrungen über 10 Jahre

Abstract

Overall, the results after PIP joint replacement are very good. All patients reported a marked improvement in pain reduction. In group B a significant reduction in the rate of loosening of the prosthesis was shown. Moreover, the rate of swan neck deformity, the range of motion, the reduction of pain and the patient's satisfaction improved over the last years. The application of a new PIP-joint-score for a standardized evaluation of the outcome indicated a good correlation with patient satisfaction over time. The experience of the past years enabled improvements in PIP joint replacement. We consider cementing the prosthesis, a large contact area between the prosthesis and the bone and an emphasis on easy intraoperative flexion/extension as factors which can improve the results after PIP joint replacement. However, some problems could not been solved to date. In this respect, prospective clinical and biomechanical studies are necessary.

Analyse der Passgenauigkeit der Prothesenköpfe der Ascension® PyroCarbon-Fingermittelgelenksprothese

“…, insbesondere die der Unterdimensionierung auf eine Fingermittelgelenksprothese übertragbar sind. Nach der Erfahrung von Vogt et al[7] mit der SR TM -PIP-Prothese sei es vorteilhaft für die Stabilität im Knochen, wenn die Kontaktfläche der Prothese genügend groß ist. Der Prothesenkragen sollte der knöchernen Schnittfläche aufliegen.…”

Free Vascularized Second-Toe Distal Interphalangeal Joint Transfer for Reconstruction of Finger Defects

“…Osteoarthritis-related defects of the finger joint can be repaired with temporary replacements, such as implants [1][2][3][4][5], permanent arthrodesis, and vascularized joint grafts like joint flaps or articular flaps [6][7][8][9][10][11]. Among these methods, the best one is believed to be the permanent substitution through an autogenous vascularized joint transfer utilizing the proximal interphalangeal joint of the second toe [6][7][8][9][10][11].…”