Validation of dynamic biplane radiography and three-dimensional model-based tracking for evaluation of dynamic thumb kinematics.

Autor: Munsch MA; University of Pittsburgh, Department of Orthopaedic Surgery, United States., Como CJ; University of Pittsburgh, Department of Orthopaedic Surgery, United States., Gale TH; University of Pittsburgh, Department of Orthopaedic Surgery, United States., Fowler JR; University of Pittsburgh, Department of Orthopaedic Surgery, United States., Anderst WJ; University of Pittsburgh, Department of Orthopaedic Surgery, United States. Electronic address: anderst@pitt.edu.
Jazyk: angličtina
Zdroj: Journal of biomechanics [J Biomech] 2022 Sep; Vol. 142, pp. 111236. Date of Electronic Publication: 2022 Jul 30.
DOI: 10.1016/j.jbiomech.2022.111236
Abstrakt: Dynamic biplane radiography (DBR) in conjunction with model-based tracking (MBT) has provided a suitable mechanism for biomechanical assessment of many joints but has not yet achieved widespread use at the thumb and wrist. The purpose of this work is to determine the accuracy of DBR with markerless MBT for the evaluation of thumb and wrist joint kinematics. Three 0.6 mm stainless steel beads were implanted into each trapezium, scaphoid, first metacarpal, and radius of three cadaveric upper extremities. Each specimen was manipulated in thumb abduction/adduction, thumb flexion/extension, wrist radioulnar deviation, and wrist flexion/extension while synchronized biplane radiographs were collected at 100 Hz. Specimen-specific 3D bone models were created from CT scans. MBT was performed by optimizing the correlation between digitally reconstructed radiographs, created from the volumetric CT-based bone models, and the biplane radiographs. Joint kinematics and joint space were calculated and compared between the "gold standard" bead-based tracking and markerless MBT. The MBT system accuracy (RMS error) in measuring bone position for the static and dynamic trials was 0.25 mm and 0.58 mm, respectively. The overall MBT system accuracy in measuring dynamic joint kinematics was 1.3 mm in translation and 5.0° in rotation. The MBT system accuracy in measuring dynamic joint space was 0.4 mm. DBR with MBT is a non-invasive and accurate method that can be utilized for kinematic analysis of the thumb and wrist.
Competing Interests: Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
(Copyright © 2022 Elsevier Ltd. All rights reserved.)
Databáze: MEDLINE
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