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The Anatomic Relationship Between the Wrist Flexion Creases and the Volar Radiocarpal Joint, A Cadaveric Study
Sonu Jain, MD
Andrew Rust, BS
The Ohio State University College of Medicine
2022-01-15
Presenter: Andrew Rust BS
Affidavit:
NA
Director Name: NA
Author Category: Fellow Plastic Surgery
Presentation Category: Clinical
Abstract Category: Hand
Previous research has characterized the relationship between the wrist flexion creases and the neurovasculature of the volar radiocarpal joint; the relationship between the wrist creases and the volar radiocarpal joint, however, has not been objectively measured and quantified. In this study, we will describe the anatomic relationships of the distal and proximal wrist flexion creases with the volar radiocarpal joint, aiming to provide a landmark for surgery or needle placement.
This study was performed on 5 frozen forearms. Measurements were recorded relative to the interfossal ridge of the radius. Using K-wires, we identified the locations of the distal and proximal wrist flexion creases under fluoroscopy.
The location of the wrist creases were then measured using a hypodermic needle filled with dye, which was injected at the location of the wrist creases. The sample was then dissected down to the volar radiocarpal joint, and the distance between the dye and the interfossal ridge was measured.
The wrist creases were found to be proximal to the volar radiocarpal joint. Under fluoroscopy, the interfossal ridge was located 5.44ą1.27 mm proximally to the proximal wrist crease and 14.16ą1.71 mm proximally to the distal wrist crease. Using dye injected at the proximal and distal wrist creases, the interfossal ridge was located 6.00ą0.92 mm proximally and 14.08ą0.71 mm proximally, respectively. There was no statistical difference between the distances of the proximal and distal wrist flexion crease to the interfossal ridge measured via fluoroscopy or dye.
