Sanjay from Newcastle, underwent a right uni-compartment knee replacement on the 5th of November 2013. This was due to the progression of osteoarthritis. The immediate post-operative x-rays revealed that the tibial implant had been placed too posteriorly, resulting in a significant overhang (8mm) of this component, with the anterior edge of the tibial component being recessed to the anterior cortex of the tibia, meaning it was over the softer cancellous bone. These components are designed to be over the hard cortical bone that surrounds the cancellous bone in the middle.
The placement of the tibial component caused it to sink anteriorly, and this quickly resulted in early loosening. Sanjay was therefore listed for revision surgery in July 2014. He endured a difficult recovery period But was eventually able to return to his usual daily activities.
Pryers was assisted by two medical experts who were able to rebut the Defendant’s suggestion that this was simply aseptic loosening, a risk associated with such a procedure. We were able to show that both intraoperative and subsequent imaging showed exactly the same degree of posterior overhang, meaning that the loosening was specifically caused by the anterior aspect of the component sinking into the cancellous bone.
The Defendant never admitted liability but shortly after agreeing to exchange liability evidence, an offer was made. Sanjay’s claim was successfully settled for £30,000.