Abstract
We report on the results of 246 Bryan cervical discs, which were implanted between June 2002 and September 2010 in 146 patients. Of the patients 74 (128 prostheses) could be followed up for more than 1 year and the average follow-up period was 2.6 years. Of the patients 18 were operated on at one level (group 1), 77 prostheses were multilevel surgery (group 2) and with 33 patients arthroplasty was combined with fusion (hybrid, group 3). The global lordosis remained unchanged during follow-up and a recurrence of kyphosis was evident in group 3. The overall mobility improved in all 3 subgroups and 2 cases (group 3) fused. With 5 patients the prosthesis had to be removed and the segment had to be fused in the postoperative course. As a conclusion a meticulous preoperative planning as well as a subtle surgical technique is the main prerequisite for long-lasting mobility of the Bryan prosthesis.
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