OBJECTIVES: This is a new technique for managing tendon repair which can improve the results of existing methods. METHODS:105 patient with new or old tendon injuries or complications of previous repair underwent tendon repair by modified Kessler method and a portion of the saphenous veins was used to cover the repaired tendon. 90 patient had flexor tendon injuries which involved zone 1 to 5, and 15 patient had extansor tendon injuries ( zone 5 t0 7). A modified Kessler technique with 3-0 prolene was used for the core suture. Afterwards, a running 6-0 nylon or prolene epitendinous suture was used to even the repair site. After the tendon repair, a segment of vein which the tendon has been passed through prior to the repair was used as a tendon sheath substitue. A 6-0 prolene was used for anastomosis of the proximal and distal ends of the sheath defect to an interposed segment of autogenous or frozen vein. RESULTS: our preliminary results appear encouraging when compared with outcomes achieved by conventional tendon repair techniques. CONCLUSIONS: because this technique reduce the adhesion formation, and also improve tendon nurishment, and also decrease the need of intensive physiotherapy, it can be a standard choice in the future. ____________________________________________________________