A clinical study and classification of posterior spinal tuberculosis.

Tuberculous involvement of the posterior elements of the spine is uncommon. Review of the literature reveals little information and there is scant mention of this subject in standard textbooks of orthopaedics. A study of 27 cases of such lesions seen over 6 years is presented, drawn from two separate centres, 21 from Central India and 6 from South Eastern Iran. The clinical presentation, investigations and treatment are analysed. A new four point classification is described based upon the site of the lesion, the stage of the lesion, associated lesions and neurological deficit.