Abstract: Objective To summarize the operation techniques and experience of anatomical reconstruction for acute of the humeral head compression fractures.

Method From October 2017 to December 2019,5 cases of humeral head compression fracture caused by dislocation of glenohumeral joint(7 side).The shoulders were exposed via deltopectoral approach.The fractures were elevated and allograft bone were filled under the osteochondral,then underpinned with screws.With regular follow-up visits,shoulder function was assessed by Constant-Murley scores.
Results The follow-up period ranged from 13 to 36 months[average(20.4±8.9)months].Postoperatively,the sphericity of the humeral head was restored without internal fixation failure.No evidence of collapse,osteonecrosis,or osteoarthritis progression was seen at latest follow-up.Functional results were excellent.Constant score was 82 to 98 at the last review.

Conclusion Anatomical reconstruction is a safe and reliable technique to restore humeral head sphericity in patients with glenohumeral joint dislocations with serious acute humeral head defect.

Key words: Hill-Sachs lesion, anatomical reconstruction, shoulder dislocation, cannulated screw