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Background: To compare the outcomes with SNAC stage II submitted to surgical treatment by the row proximal carpectomy or four corner fusion.

Methods: An experimental trial randomized is conduct to identify patients for SNAC lesion in stage II. They’re included 27 patients with ages ranged from 18 to 59 years, the media is 37.52. Thirteen patients underwent the PRC (proximal row carpectomy), in Group A and 14 wrists to the FCF (four corner fusion), in Group B. Patients are evaluated before and after surgery with follow-up between 21 and 49 months. There is a measurement the ROM (range of motion), the VAS (subjective evaluation of pain), the grip strength, the DASH and return to work.

Results: The patients in Group A have 65.5% and Group B, 55.01% the range of motion the contralateral side. Subjective evaluation of pain presents value of 2.4 in Group A and 3.1 in Group B. The grip strength is 75.67% and 74.42% respectively in the side not affected. The DASH is 11 for the PRC and 13 to the FCF. Patients who returned to work in Group A is 9/13 (69.23%) of patients undergoing RPC are currently working and Group B represent 8/14 (57.14%). The complications rate in Group A was symptomatic osteoarthritis in the mid-carpal joint and in Group B, a loosening of screw.

Conclusion: The patients have statistically significant results to improve clinical and functional hand, gain in strength, significant reduction of pain and increase quality of life after treatment of this disease by the two methods applied in this test. Patients undergoing row proximal carpectomy gives better statistically significant results with respect to gain in grip strength.