Rationale and design of The Delphi Trial – I(RCT)2: international randomized clinical trial of rheumatoid craniocervical treatment, an intervention-prognostic trial comparing 'early' surgery with conservative treatment [ISRCTN65076841]

Table 4 Eligibility criteria for the cohort group.

Cohort Group
1. Ranawat III A
2. Ranawat III B
3. Too strong preference
Conservative treatment
Surgical treatment
4. AADI < 5 mm: conservative treatment preferential
5. AADI > 12 mm: surgical treatment preferential
6. Exclusion because of in and exclusion criteria

ISSN: 1471-2474