Radiographic assessment of component orientation in elbow arthroplasty. A technical description.
We describe an alternative method of taking standardized radiographs of the elbow in patients with rheumatoid arthritis, taking into account fixed deformities. The technique enables assessment of the orientation of joint replacement components, including their axial rotational alignment. The accuracy of the method for calculating axial rotational alignment has been evaluated using a skeleton model. Within the 20 degrees limits of arm position the accuracy was found to be on average 1.4 degrees for the humerus and 2.2 degrees for the ulna.
Department of Orthopedics, Freeman Hospital, Newcastle-upon-Tyne, U.K.
P J
PJ
Briggs
S R
SR
Smith
D001172:Arthritis, Rheumatoid / Q000000981:diagnostic imaging; D004551:Elbow Joint / Q000000981:diagnostic imaging*; D006801:Humans; D066298:In Vitro Techniques; D007595:Joint Prosthesis; D008953:Models, Anatomic; D011859:Radiography; D012399:Rotation