Preliminary In Vivo Evaluation of Coracoclavicular Ligament Mechanics During Shoulder Elevation After Acromioclavicular Joint Reconstruction.

ABSTRACT:

Background

Persistent instability and altered scapular mechanics after acromioclavicular joint (ACJ) reconstruction may stem from inadequate replication of native coracoclavicular (CC) ligament function. However, in vivo data on postoperative CC ligament behavior during dynamic shoulder motion remain lacking.

Purpose

To assess in vivo functional distance and timing characteristics of the conoid and trapezoid ligaments during active shoulder elevation after ACJ reconstruction, using dynamic stereo x-ray (DSX) imaging and patient-specific 3-dimensional (3D) models.

Study design

Cross-sectional study; Level of evidence, 3.

Methods

Twelve participants (10 men and 2 women, mean age 39 ± 10 years, mean body mass 92 ± 17 kg) who had sustained an acute unilateral ACJ d

SUBMITTER: Konrath J 

PROVIDER: S-EPMC12932875 | biostudies-literature | 2026 Feb

REPOSITORIES: biostudies-literature