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Abstract Background: Flexor tendon injury is one of the most common ailments managed by hand surgeons and makes up a considerable trauma workload for plastic surgical and orthopedic trainees. The injuries arise from a spectrum of severe to trivial injuries. Aim of the work: The aim of this study is to compare the results of two commonly techniques of flexor tendon injury repair i.e 2 strand vs 4 strand regarding postoperative gapping, adhesions, range of movements assessed by postoperative ultrasonography. Patients and Methods: This is a prospective comparative randomized clinical trial (RCT), in which, forty patients had primary repair for their injured flexor tendons with a total of 64 repaired tendons. These were randomly distributed into two groups A and B.This study was conducted on patients presenting to KasrAlainy emergency department, during the period from May 2016 to August 2017. Results: This randomized prospective comparative study was conducted on 40 patients presenting to KasrAlainy hospitals in the period from May 2016 to August 2017 with 50 injured fingers with a total of 64 flexor tendons in zone II and zone III. Patients were assigned to one of two groups, namely A and B |