FUNCTIONAL OUTCOME OF ACROMIOCLAVICULAR JOINT RECONSTRUCTION USING SINGLE ENDOBUTTON
DOI:
https://doi.org/10.52764/jms.26.34.2.7Keywords:
Acromioclavicular joint, Coracoclavicular ligament, Endobutton, Rockwood classification, Shoulder reconstruction, Constant score, Functional outcomeAbstract
Abstract
Objective: This study aims to determine the functional outcome of acromioclavicular joint reconstruction using the single Endobutton technique in patients with Rockwood type III-VI AC joint dislocations.
Material & Methods: This quasi-experimental study was conducted in the Department of Orthopedics at MTI – Khyber Teaching Hospital, Peshawar, from April 2025 to March 2026. A total of 117 patients were included using nonprobability consecutive sampling. All patients were aged 20 to 60 years and had Rockwood type III-VI AC joint dislocations. All patients underwent open reduction followed by coracoclavicular reconstruction with a single Endobutton and TightRope fixation. Functional outcomes were assessed preoperatively and at 6 and 12 weeks postoperatively using the Constant-Murley score. SPSS version 26 was used for statistical analysis, and a repeated-measures analysis was applied to compare outcomes over time.
Results: The mean Constant-Murley score improved significantly from 38.4 ± 6.7 preoperatively to 64.7 ± 7.2 at 6 weeks and 87.3 ± 5.5 at 12 weeks (p < 0.001). Across all subgroups, improvement was consistent, with slightly better outcomes in younger individuals and those with lower Rockwood grades. Radiographic assessment showed a maintained reduction in 93% of patients, with minimal complications and no hardware failures or neurovascular injuries.
Conclusion: Single Endobutton fixation provides significant early functional improvement, with a high rate of maintained reduction and a low complication rate. This technique is less complex and more reliable for managing Rockwood type III-VI AC joint dislocations, making it cost-effective. Further long-term comparative studies are recommended.
Keywords: Acromioclavicular joint, Coracoclavicular ligament, Endobutton, Rockwood classification, Shoulder reconstruction
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Copyright (c) 2026 Ubaid Ullah, Abbas Ali, Rizwan Ullah, Imtiaz ur Rehman, Adnan Ahmad, Syed Dilbagh Ali Shah
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