Purpose: To study functional outcome for upper limb phalanx fracture treated by Joshi’s External Stabilizing System (JESS) fixator. Material and Methods: 68 patients were operated for Upper limb phalynx fracture in a tertiary health care setup with JESS fixator and were reviewed at 3 weeks, 6 weeks and 3months. After the procedure, the patients were assessed for the functional outcome using DASH (Disabilities or Arm, Shoulder and Hand) scoring scale. Results: Mean Adjusted DASH scores of the operated finger over consequent visits at 3 weeks, 6 weeks, and 3 months. We found that the mean adjusted DASH score improved in each consequent visit as compared to the first visit for all the joints (p<0.001). Out of the total 68 study participants, 63 had no complications (92.65%). Only 5 study participants had complications, out of which 2 each had joint stiffness (2.94%) and superficial pin track infection (2.94%) while 1 had pin loosening (1.47%). Conclusion: From the results, we can safely conclude that JESS is an effective alternative treatment for fractures of the phalanges. It is cheap and easily available. Technically, also it is less demanding. Also there is a good functional outcome as suggested by our study findings in terms of improvement in the range of motion as well as the mean adjusted DASH scores over a period of three follow up visits planned at 3 weeks, 6 weeks and 3 months with very few complications.