• Dieter Grob, Friedrich H Bremerich, Jiri Dvorak, and Anne F Mannion.
• Schulthess Klinik, Spine Unit, Lengghalde 2, 8008, Zürich, Switzerland.
• Eur Spine J. 2006 Mar 1; 15 (3): 283291283-91.

AbstractAtlantoaxial (C1-C2) facet joint osteoarthitis is a distinct clinical syndrome that often goes unrecognized. Severe pain resistant to conservative treatment that is corroborated by the radiographic findings represents the indication for surgery. The aim of this study was to retrospectively examine the long-term outcome [after an average 6.5 years (SD 4.0)] of C1-2 fusion for osteoarthritis of the atlantoaxial segment in 35 consecutive patients [25 male, 10 female; aged 62 (SD 15) years]. At follow-up, clinical outcome and radiological status was examined in 27/35 (77%) patients, and self-rated pain and disability (Neck Pain and Disability Scale; NPDS) in 29/35 (83%) patients. In 27/35 patients (77%), 2 screws were inserted; in 7 patients (20%), only 1 screw; and in 1 patient (3%), no screws. 11% of the patients had late complications requiring revision surgery. All patients showed solid fusion at the long-term follow-up. 26% patients showed an improvement in sensory disturbances, 63% no change, and 11% a worsening. 89% were pain-free or had markedly reduced pain. The average score on the NPDS (0-100) was 34 (SD 27), representing 'mild' neck problems, and the average pain intensity (0-5 VAS) was 1.5 (SD 1.5). Eighty-five percent of the patients declared that they would make the same decision again to undergo surgery. In conclusion, in a group of patients with a painful and debilitating degenerative disorder of C1-2, posterior transarticular atlantoaxial fusion proved to be an effective treatment with a low rate of serious complications.

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