The customized knee wins out over the off-the-shelf knee |

The customized knee wins out over the off-the-shelf knee

KNEES: OFF-THE-SHELF VS. CUSTOMIZED IMPLANTS (Orthopedics This Week)

A new study has pitted customized knee implants against off-the-shelf implants. The resulting paper, “In Vivo Tibial Fit and Rotational Analysis of a Customized, Patient-Specific TKA versus Off-the-Shelf TKA,” appears in the May 25, 2018 edition of the Journal of Knee Surgery.

Gregory Martin, M.D., with the department of orthopedic surgery at Preferred Orthopaedics of the Palm Beaches, Palm Beaches, Florida, and co-author on the study, told OTW, “We were interested in undertaking this study because many people have persistent pain after total knee arthroplasty using off the shelf implants that could be explained by poor implant fit and/or malrotation. We hypothesized that a customized knee implant would outperform off-the-shelf implants concerning fit and achieving correct rotation.”

“The most important result was that with off-the-shelf implants there is a serious compromise between tibial sizing and tibial rotation, both known sources of pain after total knee arthroplasty. This compromise is basically eliminated with the use of customized implants.”

“With approximately 20% of total knee patients not satisfied after the procedure, customized implants need to be taken seriously as a means to reducing persistent pain and improving patient satisfaction.”

“These results just make sense. We wouldn’t wear a shirt or a pair of shoes that doesn’t fit right, so why would we accept any less for our patients when we are implanting a medical device in them!”

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