Cruciate-sacrificing total knee arthroplasty and insert design: A radiologic study of sagittal laxity

Orthopaedics & Traumatology, Surgery & Research : OTSR
B Appy FedidaP Mertl

Abstract

Ultracongruent inserts avoid some of the drawbacks of central spine postero-stabilized inserts. However, early wear has been reported, and may be due to increased sagittal laxity. The principal objective of the present study was to compare sagittal laxity in rotating platform total knee replacements (TKR) according to insert design: ultracongruent versus central spine. The principal hypothesis was that insert design influences global sagittal laxity. A retrospective comparative study recruited 3 consecutive series of patients treated for primary osteoarthritis of the knee, with a minimum 1 year's follow-up. The UC series comprised 35 knees in 34 patients, receiving a Total Knee Triathlon™ (Stryker Orthopaedics, Mahwah, NJ) TKR with ultracongruent insert, at a mean 2.0 years' follow-up. The UC+ series comprised 36 knees in 34 patients, receiving the BalanSys™ (Mathys Ltd, Bettlach, Switzerland) TKR with ultracongruent insert, at a mean 2.5 years' follow-up; in this model, the anterior edge of the insert is higher than in the UC series ("deep-dish" design). The PS series comprised 43 knees in 40 patients, receiving a Total Knee Triathlon™ (Stryker Orthopaedics, Mahwah, NJ) TKR with central spine posterior stabilization, at a mean...Continue Reading

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Citations

Sep 24, 2016·Knee Surgery, Sports Traumatology, Arthroscopy : Official Journal of the ESSKA·Jörg LütznerStephan Kirschner
Feb 21, 2018·Knee Surgery, Sports Traumatology, Arthroscopy : Official Journal of the ESSKA·Ji-Hoon BaeYoung-Soo Shin
Apr 26, 2017·Knee Surgery, Sports Traumatology, Arthroscopy : Official Journal of the ESSKA·Eun-Kyoo SongJong-Keun Seon
Dec 2, 2020·The Journal of Bone and Joint Surgery. American Volume·Man Soo KimYong In
Aug 27, 2021·Knee Surgery, Sports Traumatology, Arthroscopy : Official Journal of the ESSKA·Pedro HinarejosJuan Carlos Monllau

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