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Philadelphia College of Osteopathic Medicine

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Full-Text Articles in Orthopedics

A Bone Of Contention: A Dynamic Ultrasound Assessment Of The Role Of The Radial Head In The Arthrokinematics Of The Proximal Radioulnar Joint, Kolson Lamb, Madison D. Hendricks, Courtney E. Grimes, Cameron A. Johnson, David Nguyen, Ruth Maher May 2023

A Bone Of Contention: A Dynamic Ultrasound Assessment Of The Role Of The Radial Head In The Arthrokinematics Of The Proximal Radioulnar Joint, Kolson Lamb, Madison D. Hendricks, Courtney E. Grimes, Cameron A. Johnson, David Nguyen, Ruth Maher

Research Day

INTRODUCTION: The arthrokinematics of the proximal radioulnar joint (PRUJ) are believed to follow the convex-concave rule, meaning that when the convex radial head articulates with the concave radial notch on the ulna, rolling and gliding occur in opposite directions during forearm pronation and supination. Previous research using helical computerized tomography (CT) identified that the sequence of joint actions is in contrast with this rule, which would indicate a posterior glide of the radius on the ulna during pronation movement and the converse during supination.

OBJECTIVES: The aims of this study are to determine the arthrokinematics of the PRUJ while being …