A computed tomography based study on rotational alignment accuracy of the femoral component in total knee arthroplasty using computer-assisted orthopaedic surgery.

International Orthopaedics
Henrica M J van der Linden-van der ZwaagRob G H H Nelissen

Abstract

Rotation of the femoral component in total knee arthroplasty (TKA) is of high importance in respect of the balancing of the knee and the patellofemoral joint. Though it is shown that computer assisted surgery (CAOS) improves the anteroposterior (AP) alignment in TKA, it is still unknown whether navigation helps in finding the accurate rotation or even improving rotation. Therefore the aim of our study was to evaluate the postoperative femoral component rotation on computed tomography (CT) with the intraoperative data of the navigation system. In 20 navigated TKAs the difference between the intraoperative stored rotation data of the femoral component and the postoperative rotation on CT was measured using the condylar twist angle (CTA). This is the angle between the epicondylar axis and the posterior condylar axis. Statistical analysis consisted of the intraclass correlation coefficient (ICC) and Bland-Altman plot. The mean intraoperative rotation CTA based on CAOS was 3.5° (range 2.4-8.6°). The postoperative CT scan showed a mean CTA of 4.0° (1.7-7.2). The ICC between the two observers was 0.81, and within observers this was 0.84 and 0.82, respectively. However, the ICC of the CAOS CTA versus the postoperative CT CTA was only 0...Continue Reading

References

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Citations

Mar 20, 2012·International Orthopaedics·Fabio ConteducaAndrea Ferretti
Oct 17, 2012·International Orthopaedics·Amir SternheimDavid Backstein
Oct 30, 2012·International Orthopaedics·Masahiro HasegawaAkihiro Sudo
Jun 10, 2011·Archives of Orthopaedic and Trauma Surgery·Nicolas VaninStefan Hankemeier
Sep 26, 2013·Knee Surgery, Sports Traumatology, Arthroscopy : Official Journal of the ESSKA·Andrea EnsiniSandro Giannini
Oct 28, 2016·Knee Surgery, Sports Traumatology, Arthroscopy : Official Journal of the ESSKA·Zhenxiang ZhangYaqing Du
Jan 21, 2014·Knee Surgery, Sports Traumatology, Arthroscopy : Official Journal of the ESSKA·Frederic PaternostreEmmanuel Thienpont
Jun 4, 2014·Knee Surgery, Sports Traumatology, Arthroscopy : Official Journal of the ESSKA·Emmanuel ThienpontPeter Koch
Aug 27, 2014·Knee Surgery, Sports Traumatology, Arthroscopy : Official Journal of the ESSKA·Daniel Hernandez-VaqueroJimena Llorens de los Rios
Nov 29, 2012·Knee Surgery, Sports Traumatology, Arthroscopy : Official Journal of the ESSKA·Oliver HauschildFriedrich W Thielemann
Apr 30, 2013·The Journal of Foot and Ankle Surgery : Official Publication of the American College of Foot and Ankle Surgeons·Rosdi DaudAminudin Che Ahmad
Aug 29, 2012·Orthopaedic Surgery·Yan-xi ChenYong-cheng Hu
Mar 28, 2016·Knee Surgery, Sports Traumatology, Arthroscopy : Official Journal of the ESSKA·Michael DrexlerYona Kosashvili
Dec 17, 2014·Knee Surgery & Related Research·Prateek BeheraMandeep Dhillon
Sep 6, 2012·Clinical Orthopaedics and Related Research·R Stephen J Burnett, Robert L Barrack
Apr 1, 2019·European Journal of Orthopaedic Surgery & Traumatology : Orthopédie Traumatologie·Mitsuru HanadaYukihiro Matsuyama
Apr 11, 2021·Scientific Reports·Vicente J León-MuñozFernando Santonja-Medina

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Methods Mentioned

BETA
RSA
PCA

Software Mentioned

BrainLAB
Vector Vision CT
Sectra
CAOS
Vitrea2
SPSS

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