Review Article

Skeletal Radiology

, Volume 41, Issue 5, pp 493-501

First online:

How to read a postoperative knee replacement radiograph

  • Nawfal Al-HadithyAffiliated withTrauma and Orthopaedics, Luton and Dunstable Hospital Email author 
  • , Madhavan C. PapannaAffiliated withTrauma and Orthopaedics, Luton and Dunstable Hospital
  • , Sana FarooqAffiliated withAccident and Emergency, Barnet General Hospital
  • , Yegappan KalairajahAffiliated withTrauma and Orthopaedics, Luton and Dunstable Hospital

Rent the article at a discount

Rent now

* Final gross prices may vary according to local VAT.

Get Access


Knee replacement surgery is the most common joint replacement surgery in England and Wales. Postoperative radiographs are associated with long-term outcome at both early and late stages, and their correct interpretation is therefore vital. These radiographs will commonly be assessed by surgical trainees, emergency doctors, orthopaedic surgeons, nurse practitioners, and radiologists. The aim of this paper is to provide the reader with a systematic approach to assessing these radiographs, whether it be in the immediate postoperative period or during subsequent follow-ups, and to provide sufficient knowledge to critique the procedure. An outline of prostheses and their indications alongside a comprehensive review of the assessment of important angles, alignment, and correct positioning of femoral and tibial components is presented.


Knee radiograph Assessment Postoperative Replacement Arthroplasty