gms | German Medical Science

Objectives: Acromioclavicular joint dislocations due to its ligament insertion part fractures or with the ipsilateral SC joint dislocation are rare. We presented a case series of 14 patients who were surgically treated with complete follow-up at least 1 year in the Level- I trauma center. Their clinical presentations as well as well as the strategy of surgical treatment according to its patho-anatomy were discussed.

Methods: Four types of AC joint dislocations can be identified. Type I (1 case ): The ACJ dislocated due to the clavicle fracture. The patient was treated with the hook plate to reduce the AC joint dislocation followed by fixed the clavicle segment with sutures to the hook plate .Type II ( 9 cases): The ACJ dislocated due to the coracoid fracture. The patients were treated by 2 ways according to the extent of the coracoid process displacement: 1) With minor displacement, the coracoid fractures were fixed percutaneously using cannulated screws under the fluoroscopic guidance .2) With severely displacement, the AC joint dislocations were reduced with the hook plate, followed by open reduction and fixation of the coracoids fractures by screws. Type III (2 cases): The AC joint separated horizontal combined with the acromion fracture. The acromion fractures were treated by open reduction and fixation by locking plate first followed by reduced and fixed the separated AC joint by K-wires. Type IV (2 cases): The ipsilateral sternoclavicle displaced anterior with the AC joint dislocation posterior. The dislocated SC joints were fixed by Eithbond suture in figure of eight first followed by reducing and fixing the dislocated AC Joint by K-wires

Results and Conclusion: In these circumstances, either the CC ligament or the AC ligament is intact. The surgical treatment of the fracture is reliable method in treating these rare special kind AC Joint dislocations.