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Abstract Purpose : The current study was conducted to investigate the effect of an early intervention of ultrasound (US) and active mobilization on interphalangeal (IP) joints active range of motion (ROM) affected by peritendinous adhesions post surgical repair of hand flexor tendon laceration. Subjects and Methods: Thirty male patients who underwent zone II flexor tendon primary direct four-strand repair technique participated in this study. Their ages ranged from 20 to 35 years. They were selected from Cairo University Hospitals and divided randomly into three groups: group (A) composed of 10 patients (15 operated digits) who received early US therapy, and at the 4th and 6th postoperative weeks, the 2nd and 3rd phases of early active mobilization (EAM) program were added respectively to the US therapy, group (B) composed of 10 patients (16 operated digits) who received EAM, and group (C) composed of 10 patients (16 operated digits) who received early intervention of US therapy and active mobilization. Patients in each group received the treatment (3sessions/week) from the 3rd day postoperative till the end of the 6th week postoperative. Post surgical medical care (medications including analgesics and antibiotics, and wound dressings) was provided for all patients in each group. Finger goniometer was used to measure the IP joints active ROM of the operated digits at end of 3rd and 6th postoperative weeks. The Strickland{u2019}s Original Scoring System was used to evaluate the outcome. Results: group A, B, and C showed significant improvement in the active ROM and Strickland{u2019}s Original Scoring System at end of 6th week postoperative compared with them at end of 3rd week postoperative. There was a significant improvement in the active ROM and Strickland{u2019}s Original Scoring System at end of 3rd and 6th week postoperative of group B compared with group A. group C showed significant improvement in the active ROM and Strickland{u2019}s Original Scoring System at end of 3rd and 6th week postoperative when compared to group A but no significant improvement when compared to group B |