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Article History

Received: 3 January 2026

Accepted: 10 March 2026

First Online: 23 March 2026

Declarations

:

: This study was conducted in accordance with the ethical standards of the institutional research committee and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards. The CT data used in this study were derived from a healthy adult male and were used solely for data simulation and model construction. Ethics approval was obtained from the Ethics Committee of Nantong Rici Hospital Affiliated to Yangzhou University. Written informed consent was obtained from the volunteer participant for use of CT imaging data in this computational modeling study.

: Written informed consent was obtained from the volunteer participant for publication of anonymized data in this study.

: The authors declare no competing interests.

: Compared to Group B, Group C exhibited a more favorable biomechanical profile. The combined technique reduced the peak Von Mises stress at the distal clavicle by 37% (44.28 MPa vs. 70.12 MPa). Fragment displacement decreased by 42% in the horizontal plane (4.52 mm vs. 7.76 mm) and by 45% vertically (2.87 mm vs. 5.23 mm). The peak subacromial pressure was also lower in Group C (980 kPa vs. 1520 kPa).

: Within the constraints of this finite element model, augmenting plate fixation with anatomical coracoclavicular ligament reconstruction reduced stress concentration and improved fragment stability in Neer type II fractures, suggesting a biomechanical advantage over plating alone. These computational results support the continued clinical investigation of this combined technique.