The concept of repair in knee arthroplasty technology.

Description

Abstract: An orthopaedic medical device's success is measured using clinical testing, patient-reported outcome measures (PROMs), and quality-adjusted life years (QALYs). However, the most significant influence has been the cumulative revision rates (CPR) reported annually by national arthroplasty registries. CPR measures the success of a prosthesis by calculating the total number of revisions that the joint requires during the entire operational use of that device. The influence of registries has ascertained that surgeons use CPR as the primary measure when picking a prosthesis in countries with national health insurance. For device manufacturers, revision surgery requires an assessment of the mechanical features of the device to ascertain the cause of failure and if a change to the device would decrease instances of revision. The first meniscal bearing knee replacement, The Oxford Knee™, launched in 1982, has done the most successful retrospective analysis and has become the most used device of its kind since 2009. While known as the Oxford Knee (OK) by the orthopaedic community, the device manufacturer is very clear in separating the three developmental phases – called OK Phase I, OK Phase II and OK Phase III, and emphasises the necessary repairs done to both the device and the surgical tools necessary for the procedure. Here, the concept of repair takes on a new meaning – for success, meaning a lower CPR, changes need to be made to the device itself and the tools with which the device is placed in a patient. The latter is also a repair of the surgeon's skill – the developed guide tools, a set of correctional devices that aim to assure that the surgeon performs the procedure in the pre-designed 'correct' way.

Period	10 Jul 2024
Event title	The International Committee for the History of Technology and the Society for the History of Technology (ICOHTEC-SHOT) joint 2024 Annual Meeting: Reparando / Repair in the History of Technology
Event type	Conference
Location	Viña del Mar, ChileShow on map
Degree of Recognition	International