system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
Watson Jones operation is done for?
assistant
The correct answer is  Prosthesis of of the hip are used for the replacement of head of femur following non union and AVN. Hip can be approached either by anterior ( WATSON JONES) , Lateral ( Gibson&;s) or posterior ( Moore&;s or Southern&;s) approaches. REF:TB of ohopaedics - Ebnezar - 3rd edn - pg no 623.