Femoral component placement changes soft tissue balance in posterior-stabilized total knee arthroplasty

Clinical Biomechanics
Hirotsugu MuratsuRyosuke Kuroda

Abstract

We developed a new tensor for total knee arthroplasty enabling the soft tissue balance measurement after femoral trial placement with the patello-femoral joint reduced. The purpose of the present study is to compare the measurements of joint gap and ligament balance between osteotomized femoral and tibial surfaces in posterior-stabilized total knee arthroplasty with that between surfaces of femoral trial component and tibial osteotomy. Using this tensor, the effect of femoral trial placement on the soft tissue balance was analyzed in 80 posterior-stabilized total knee arthroplasties for varus osteoarthritic knees. Both joint gap and varus ligament imbalance were measured with 40 lb of joint distraction force at extension and flexion, and compared between before and after femoral trial placement. In assessing the joint gap, there was significant decrease as much as 5.3mm at extension, not flexion, after femoral trial prosthesis placement. Varus ligament imbalances were significantly reduced with 3.1° at extension and increased with 1.2° in average at flexion after femoral trial placement. These changes at extension were caused by tensed posterior structures of the knee with the posterior condyle of the externally rotated aligned...Continue Reading

References

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Citations

Jul 2, 2011·Knee Surgery, Sports Traumatology, Arthroscopy : Official Journal of the ESSKA·Koji TakayamaRyosuke Kuroda
Aug 17, 2011·Knee Surgery, Sports Traumatology, Arthroscopy : Official Journal of the ESSKA·Shinya OkaMasahiro Kurosaka
Oct 4, 2011·Knee Surgery, Sports Traumatology, Arthroscopy : Official Journal of the ESSKA·Nobuyuki YoshinoShinro Takai
Nov 29, 2011·Knee Surgery, Sports Traumatology, Arthroscopy : Official Journal of the ESSKA·Hiroshi SasakiRyosuke Kuroda
Jan 17, 2013·Knee Surgery, Sports Traumatology, Arthroscopy : Official Journal of the ESSKA·Tomoyuki MatsumotoMasahiro Kurosaka
May 15, 2012·Archives of Orthopaedic and Trauma Surgery·Eirik AunanStephan M Röhrl
Aug 21, 2013·Knee Surgery, Sports Traumatology, Arthroscopy : Official Journal of the ESSKA·Tokio MatsuzakiMasahiro Kurosaka
Feb 13, 2014·Archives of Orthopaedic and Trauma Surgery·Seiju HayashiYu Mochizuki
Sep 28, 2013·Knee Surgery, Sports Traumatology, Arthroscopy : Official Journal of the ESSKA·Dae-Hee LeeSeung-Beom Han
May 22, 2013·Knee Surgery, Sports Traumatology, Arthroscopy : Official Journal of the ESSKA·Shinya OkaMasahiro Kurosaka
Feb 1, 2014·Knee Surgery, Sports Traumatology, Arthroscopy : Official Journal of the ESSKA·Shigetoshi OkamotoYukihide Iwamoto
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Oct 13, 2012·Clinical Biomechanics·Tomoyuki MatsumotoMasahiro Kurosaka
May 9, 2015·Archives of Orthopaedic and Trauma Surgery·Takashi SuzukiYasuaki Tokuhashi
Mar 29, 2014·Advances in Orthopedics·Arata NakajimaKoichi Nakagawa
Dec 30, 2014·Knee Surgery, Sports Traumatology, Arthroscopy : Official Journal of the ESSKA·Tokio MatsuzakiMasahiro Kurosaka
Jun 29, 2016·The Journal of Arthroplasty·Timothy A BurkhartBrent Lanting
Sep 6, 2012·Clinics in Orthopedic Surgery·Dai-Soon KwakYong In
Sep 6, 2019·Knee Surgery, Sports Traumatology, Arthroscopy : Official Journal of the ESSKA·Sang Jun SongCheol Hee Park
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Feb 9, 2017·Archives of Orthopaedic and Trauma Surgery·Eirik AunanStephan M Röhrl

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