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Related Experiment Video

Updated: May 21, 2026

Measurement of Dynamic Scapular Kinematics Using an Acromion Marker Cluster to Minimize Skin Movement Artifact

Measurement of Dynamic Scapular Kinematics Using an Acromion Marker Cluster to Minimize Skin Movement Artifact

Published on: February 10, 2015

[Relationship between midcarpal inclination angle and scaphoid kinematic].

L Ardouin¹, M G Racca, M Garcia-Elias

¹Institut Kaplan, Passeig de la Bonanova, n(o) 9, 2-2, 08022 Barcelone, Espagne. ludovicardouin@me.com

Chirurgie De La Main

|June 19, 2012

Summary

The midcarpal inclination angle correlates with scaphoid bone movement. Wrist anatomy, specifically lunate type, influences scaphoid kinematics during radioulnar deviation.

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Last Updated: May 21, 2026

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Area of Science:

Orthopedic biomechanics
Wrist anatomy and kinematics

Background:

The scaphoid bone's kinematic behavior is crucial for wrist function.
Understanding factors influencing scaphoid motion is essential for diagnosing and treating wrist injuries.

Purpose of the Study:

To investigate the correlation between the midcarpal inclination angle and the kinematic behavior of the scaphoid bone.
To determine if lunate morphology influences this relationship.

Main Methods:

Radiographic analysis of 60 patients' wrists in full radial and ulnar deviation.
Classification of lunate types (I and II) by two independent observers.
Measurement of the Midcarpal Inclination Angle and Scaphoid Flexion Index (SFI).

Main Results:

A significant difference in the average midcarpal inclination angle was observed between lunate types I (55.2°) and II (63.8°).
A significant linear relationship was found between the midcarpal inclination angle and the Scaphoid Flexion Index (p=0.02).

Conclusions:

Wrists with a midcarpal inclination angle >60° (lunate type II) exhibit a "columnar pattern" of scaphoid rotation.
Wrists with lunate type I demonstrate a "row pattern" of scaphoid motion during radioulnar inclinations.