Background and objectives: The compression of supraspinatus tendon of the rotator cuff and the subacromial bursa by the anterior and inferior aspect of the acromion and by coracoacromial ligament, during overhead abduction of shoulder, leads to severe pain in the shoulder and gross restriction of overhead activities. Conservative Open acromioplasty is a simple procedure, using minimum instrumentation with small incision, simultaneously supraspinatus can be visualized and repaired Methods: This is a retrospective and prospective study was conducted at Navodaya Medical College Hospital & Research Centre between 2012 to 2014. All Patients with chronic impingement syndrome, treated by Conservative Open acromioplasty as definitive modality of treatment, were followed up till regain of full function. A total of 60 patients included in study and were in age group of 20-63. Results: In current study, 60 patients were in the age group of 20-63. 10 patients (17%) had type 1 acromion, 26 patients (43%) had type 2 acromion, 24 patients (40%) had type 3 acromion. 3 patients (5%) were having AC joint arthrosis, in those patients lateral end of clavicle excision was done. 60 patient were followed up and results evaluated and graded, according to American Shoulder and Elbow surgeons scores In, 10 (17%) patients having type 1 acromion, 70 % had excellent results, 10% had good result and 20% had poor result. In, 26 (43%) Patients having type 2 acromion, 84.6% had excellent results, 11.5% had good results and 3.8% had poor results. In, 24 (40%) Patients having type 3 acromion, 80% had excellent results, 8.3% had good results, and 12.5% had poor results.In the current study 80% of our patients had excellent results,10% had good results, 10 % had fair to poor results. Conclusion: From this sample study, we consider that Conservative Open acromioplasty is an excellent treatment for chronic impingement syndrome.
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