Zimmer-Biomet Persona Partial Knee Replacement (Medial)


Subscribe to get full access to this operation and the extensive Knee Surgery Atlas.


Learn the Zimmer-Biomet Persona Partial Knee Replacement (Medial) surgical technique with step by step instructions on OrthOracle. Our e-learning platform contains high resolution images and a certified CME of the Zimmer-Biomet Persona Partial Knee Replacement (Medial) surgical procedure.


This is the case of a 77 year old man who had exceeded the benefits of non-operative treatment including analgesia and physiotherapy. He did not wish to use an offloader brace.

My practice is to use a fixed bearing partial knee replacement for all lateral unicompartmentals and medial unis where the patient is over the age of 65 or there is concern over the ACL integrity.

The Persona Partial Knee (PPK) is a minimally invasive replacement of one compartment of the knee joint with fixed bearing modular cemented components. It is produced (and in the UK marketed) by Zimmer Biomet. The PPK is a new design which is currently available to use through Beyond Compliance whilst it enters the marketplace. The PPK combines many positive features of previous fixed bearing UKR’s including those that achieved good 10 and 20 year survival.  In addition there have been developments with better polyethylene wear properties by using Vivacit-E Polyethylene which is actively stabilized with Vitamin-E. By using large databases of patient morphotypes the shape of the PPK has been modified to represent the very best fit possible.

As a surgeon with a background and current practice still using mobile uncemented Oxford implants as well, this system provides a very simple yet appropriate transition to the fixed UKR design using a resection rather than a milling technique.

This case was performed as an overnight stay.

Author: Mr James Murray MA FRCS (Tr and Orth) MB BChir (Cantab)

Institution: The Avon Orthopaedic Centre, Southmead Hospital, Bristol ,UK.

  • Each operation and the questions associated become a named course in the CPD section
  • The operative technique itself is read as a lesson as is any company implant information if this is being assessed.
  • You’ll need to tick the box to confirm this has been done and can do this immediately if you have already read the op tech.
  • The vast majority of operations have a 10-15 MCQ quiz covering all aspects of the decision making and the technique
  • There are four possible answers of which one is correct (or on occasion more correct) than the others.
  • There are additional quiz modules on the surgical steps, the implants and problem cases being added continually
  • The course is completed once all the lessons are read and quizzes submitted and passed.
  • On successful completion of each quiz you will receive validated CPD points that add to the certificate in your CPD folder.
  • Your dashboard also will contain a record of the time you have spent logged onto and using the site.
  • The timer suspends after 5 minutes though if there is no activity.
  • When you restart you will resume at the same point in the module.
  • Once you have completed each quiz you will need to feedback on the module first then click “submit” and your paper will be marked.
    The pass mark is 75%.
  • If you fall below this level you will be directed back to re-read the slides where you’ve tripped up.
  • Once these have been read you can re-do just the questions you failed on.
  • Once you have passed the quiz you can return at a future stage & resit .

CPD Points:

  • Operation Quiz – 1 CPD point
  • Surgical steps Quiz – 1/4 CPD point
  • Implants Quiz – 1/4 CPD point
  • Problem case Quiz – 1/2 CPD point

One CPD point equates to one hour of academic activity


Welcome to the Professional Development question section. The objective of taking these tests is to demonstrate that you have understood all aspects of the assessment and management of patients requiring surgical intevention. On successful completion you will receive a certificate accredited by both the Royal College of Surgeons of both England and Edinburgh as well as the British Orthopaedic Association.

Our content is designed for both Surgeons in independent practice and Surgeons in training.


  • Did you find this technique helpful?
  • YesNo

Lessons Status


Logo Logo Logo Logo Logo Logo Logo

Associates & Partners

Logo Logo Logo Logo Logo Logo