Abstract:Objective To study the method and efficacy of arthroscopic treatment for partial articular surface tendon avulsions(PASTA).Methods We collecting the data of 24 patients who had PASTA from 2013.1 to 2015.1 in our department.There were 8 males and 16 females whose age were from 30 to 66 years,the average age was 47.5 years.The 10 cases were the right side and 14 cases were the left side.The 11 cases were caused by direct traumatic violence and 13 cases were no history of trauma,all patients were closed injury.All patients were treated by arthroscopic exploratory.We cleaned up the joint cavity and got into the Subacromialgap,implanted the anchors with line in the footprint by the transtendon technique,then knot and repaired the rotator cuff injury,rebuild the integrity of the rotator cuff.Individualized exercise was performed based on the patient’s conditionpostoperative.Results There were no infection,no limited function of the shoulder with an average follow-up of 18 months(12~24 months).We scored the shoulder function before and after surgery by the American Shoulder and Elbow Surgery(ASES) score and Constant-Murley score for shoulder function.There was statistically significant different between the scores before and after operation,analyzed the results of shoulder function between preoperative and postoperative with paired t-test(α=0.05) by the statistical software of SPSS 14.0,α=0.05,analytical results were shown:P<0.001,andstatistically significant.Conclusion.Conclusion For PASTA that was more than 50%,repairing the PASTA by thetranstendon repair technique which can rebuild thefootprint anatomyand restore the integrity of the rotator cuff,is an effective method for treatment.