Sistemi di scarico articolare extra-capsulari del ginocchio: stato dell’arte

  • Pietro ZeddeEmail author
  • Francesco Mattia Uboldi
  • Federica Denti
  • Leonardo Puddu
  • Sebastiano Cudoni

Extra-capsular knee joint unloading implant system: state of the art


The treatment of early osteoarthritis of the knee can also be addressed with the use of different techniques that provide for the discharge of the affected joint compartment. Internal extra-articular devices consist of metal or polycarbonate-urethane shock absorbers fixed to the femur and tibia by angular stability plates. Their purpose is to unload the joint and allow for reduction of the intra-articular compressive strength in the first degrees of flexion without modifying its anatomy and biomechanics and, therefore, being reversible. The literature is lacking in medium- and long-term clinical results with the presence of limited case series or case reports with contrasting results that do not provide significant conclusions on their efficacy but highlight some complications. Further studies are needed, as the theory is very promising.


Conflitto di interesse

Gli autori Francesco Mattia Uboldi, Pietro Zedde, Federica Denti, Leonardo Puddu, Sebastiano Cudoni dichiarano di non avere alcun conflitto di interesse.

Consenso informato e conformità agli standard etici

Tutte le procedure descritte nello studio e che hanno coinvolto esseri umani sono state attuate in conformità alle norme etiche stabilite dalla dichiarazione di Helsinki del 1975 e successive modifiche. Il consenso informato è stato ottenuto da tutti i pazienti inclusi nello studio.

Human and Animal Rights

L’articolo non contiene alcuno studio eseguito su esseri umani e su animali da parte degli autori.


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Copyright information

© Società Italiana Ortopedici Traumatologi Ospedalieri d’Italia 2019

Authors and Affiliations

  • Pietro Zedde
    • 1
    Email author
  • Francesco Mattia Uboldi
    • 2
  • Federica Denti
    • 3
  • Leonardo Puddu
    • 2
  • Sebastiano Cudoni
    • 1
  1. 1.U.O.C. di Ortopedia e Traumatologia Ospedale Giovanni Paolo II – ASSLOlbiaItalia
  2. 2.Dipartimento di OrtopediaUniversità degli Studi di SassariSassariItalia
  3. 3.Dipartimento di Chimica e FarmaciaUniversità degli Studi di SassariSassariItalia

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