66 shoulders treated with the Alvik modification of the Eden-Hybbinette operation for recurrent anterior dislocation or subluxation were examined with an average follow-up of 6 years. Two shoulders had redislocated and one had subluxations. Forty-five of the 57 cases radiographically examined showed bony healing of the transplant; nonunion of the transplant occurred in 6 cases and resorption in another 6. The objective results were excellent in 35 cases, good in 18, fair in 3, and poor in 3 cases. The patients' subjective rating was excellent or good in 61 of the 66 cases. The Alvik operation can be recommended.