Objective      To evaluate the clinical outcome of arthroscopic subtalar arthrodesis for terminal subtalar arthritis.       Methods      Totally 14 patients (14 ankles) with isolated terminal subtalar arthritis receiving arthroscopic subtalar arthrodesis in our department from October 2008 to October 2013 were enrolled in this study. There were 12 males and 2 females

with an average age of 35.5

and 11 patients with traumatic arthritis and 3 with rheumatoid arthritis. During the operation

the cartilage and partial subchondral bone were resected arthroscopically using the posterior portals. After the micro-fracture in the joint face

2 cannulated screws in diameter of 7.0 mm were inserted for fixation by the monitor of the C-arm. American Orthopaedic Foot and Ankle Society (AOFAS) score and visual analogue scale (VAS) were employed pre- and pro- operatively to evaluate the outcome.       Results      All the 14 patients were followed up at for an average time of 41 months. X-ray films indicated that all of the patients got the bony fusion of subtalatr joint in 8 weeks after surgery. AOFAS score was improved from 53.8 pre-operatively to 89.2 post-operatively. VAS was improved from 7.8 pre-operatively to 1.5 post-operatively.       Conclusion      Arthroscopic subtalar arthrodesis will obtain a satisfactory surgical outcome for the treatment of terminal subtalar arthritis

with higher fusion rate and fewer complications.