Safe distances in coracoclavicular stabilization of high-grade acromioclavicular joint injury: a cadaveric study.
- 1Department of Orthopedics, Faculty of Medicine, Prince of Songkla University, Hat Yai, 90110, Songkhla, Thailand.
- 2Department of Orthopedics, Faculty of Medicine, Prince of Songkla University, Hat Yai, 90110, Songkhla, Thailand. [email protected].
- 3PSU Cadaveric Surgical Training Center, Faculty of Science, Prince of Songkla University, Hat Yai, 90110, Songkhla, Thailand.
Abstract
Background
Regarding treatments for acute high-grade acromioclavicular (AC) joint injury, combined coracoclavicular (CC) ligament stabilization and AC capsule repair are associated with the risk of iatrogenic neurovascular injury. However, previous studies have only evaluated the distances from the coracoid base to the neurovascular structure in intact AC joints; thus, it is questionable whether the distances from the existing evidence are reliable. This study aimed to measure and compare the distances from the coracoid base and tip to the neurovascular bundle in the beach chair, supine, and lateral decubitus positions in cadavers with high-grade AC joint injury.Methods
This study included four male and four female full-body fresh-frozen cadavers. We created high-grade AC joint injuries in 8 right and 8 left shoulders, and measured the distances from the anteromedial borders of the coracoid base and tip to the lateral border of the neurovascular structure in the horizontal, oblique, and vertical planes using cadavers in the beach chair, supine, and lateral decubitus positions.Results
The average distances from the coracoid base to the neurovascular structure were shortest in the lateral decubitus position, with distances in the horizontal, oblique, and vertical planes of 39.93 ± 9.13, 26.29 ± 7.68, and 32.03 ± 8.87 mm, respectively. All distances were affected by body position, except for the distance in the beach chair and supine positions in the vertical plane.Conclusions
When performing CC stabilization for acute high-grade AC joint injuries, the lateral decubitus position may provide a smaller anatomical safety margin compared with the supine and beach chair positions in this cadaveric model.
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BibTeX
@article{maliwankul2026safe,
title = {{Safe distances in coracoclavicular stabilization of high-grade acromioclavicular joint injury: a cadaveric study.}},
author = {Korakot Maliwankul and Chaiwat Chuaychoosakoon and Amornrat Chookliang and Wachiraphan Parinyakhup and Prapakorn Klabklay and Tanarat Boonriong},
journal = {BMC musculoskeletal disorders},
year = {2026},
month = jul,
doi = {10.1186/s12891-026-10240-1},
url = {https://europepmc.org/article/MED/42897572},
note = {CC BY-NC-ND},
}
RIS
TY - JOUR
TI - Safe distances in coracoclavicular stabilization of high-grade acromioclavicular joint injury: a cadaveric study.
AU - Korakot Maliwankul
AU - Chaiwat Chuaychoosakoon
AU - Amornrat Chookliang
AU - Wachiraphan Parinyakhup
AU - Prapakorn Klabklay
AU - Tanarat Boonriong
PY - 2026
DA - 2026/07/01
JO - BMC musculoskeletal disorders
DO - 10.1186/s12891-026-10240-1
UR - https://europepmc.org/article/MED/42897572
AB - Background Regarding treatments for acute high-grade acromioclavicular (AC) joint injury, combined coracoclavicular (CC) ligament stabilization and AC capsule repair are associated with the risk of iatrogenic neurovascular injury. However, previous studies have only evaluated the distances from the coracoid base to the neurovascular structure in intact AC joints; thus, it is questionable whether the distances from the existing evidence are reliable. This study aimed to measure and compare the distances from the coracoid base and tip to the neurovascular bundle in the beach chair, supine, and lateral decubitus positions in cadavers with high-grade AC joint injury.Methods This study included four male and four female full-body fresh-frozen cadavers. We created high-grade AC joint injuries in 8 right and 8 left shoulders, and measured the distances from the anteromedial borders of the coracoid base and tip to the lateral border of the neurovascular structure in the horizontal, oblique, and vertical planes using cadavers in the beach chair, supine, and lateral decubitus positions.Results The average distances from the coracoid base to the neurovascular structure were shortest in the lateral decubitus position, with distances in the horizontal, oblique, and vertical planes of 39.93 ± 9.13, 26.29 ± 7.68, and 32.03 ± 8.87 mm, respectively. All distances were affected by body position, except for the distance in the beach chair and supine positions in the vertical plane.Conclusions When performing CC stabilization for acute high-grade AC joint injuries, the lateral decubitus position may provide a smaller anatomical safety margin compared with the supine and beach chair positions in this cadaveric model.
SN - 1471-2474
ER -