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Robotic-assisted total hip arthroplasty: from planning to robotization

Published in N°004 - January / February 2020
Article viewed 246 times

Robotic-assisted total hip arthroplasty: from planning to robotization

By Pascal KOUYOUMDJIAN in category TECHNOLOGY
Nimes University Hospital 4 rue du professeur Robert Debré, 30029 Nîmes France

As surgery goes, total hip replacements achieve some of the best outcomes; however, operated patients continue to demand even better functional results.
The short-, mid- and long-term results do not always meet expectations and are sometimes marred by complications or poor results.

 

As surgery goes, total hip replacements achieve some of the best outcomes; however, operated patients continue to demand even better functional results.

The short-, mid- and long-term results do not always meet expectations and are sometimes marred by complications or poor results.

A certain number of factors, such as patient demographic, surgical approach and technique, and implant type can affect the outcome of this type of surgery. Some of these factors are surgeon-dependent, affected only by the choices made during the presurgical planning stage but also by ability to follow the plan exactly and avoid implant malposition.

Looking at the possible causes of failure, especially those dependent on the surgeon, we believe that one of the worst offenders is the implant placement.

Malpositioning is linked to a higher rate of dislocation, impingement within or around the implant which can cause pain or affect functional outcomes, accelerated implant wear, unequal length and, ultimately, a higher rate of revision. It is in fact responsible for up to 40% of revisions.1

Presurgical planning, and the use of hip navigation systems in some cases, has improved implant position.

However, these tools do not fully control the position of the implant and there is still significant room for...

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