, Volume 31, Issue 2, pp 142–146 | Cite as

Il trattamento del ginocchio protesizzato instabile

  • Francesco Benazzo
  • Matteo Ghiara
  • Stefano Marco Paolo Rossi

Treatment of instability following total knee arthroplasty


Instability following total knee arthroplasty is one of the major causes of revision surgery. In most cases, it may be prevented by using an appropriate prosthesis and a good surgical technique. Particular attention should be given to confirmation of diagnosis for which thorough history taking, complete physical examination and radiographic evaluation are needed. Concerning the treatment, an accurate diagnosis and identification of the aetiology of instability is crucial for establishing proper treatment plans; instability would persist without correction of the cause of the initial instability. For successful revision surgery, balanced medio-lateral and flexion-extension gaps should be achieved. The correct level of constraint must be chosen: constrained or rotating-hinge total knee prosthesis should also be considered as an alternative option for certain subsets of patients with instability.


Conflitto di interesse

Gli autori Francesco Benazzo, Matteo Ghiara e Stefano Marco Paolo Rossi 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 2017

Authors and Affiliations

  • Francesco Benazzo
    • 1
  • Matteo Ghiara
    • 1
  • Stefano Marco Paolo Rossi
    • 1
  1. 1.Clinica Ortopedica e Traumatologica, Università degli Studi di PaviaFondazione IRCCS Policlinico San MatteoPaviaItalia

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