Bone scintigraphy in tuberculous spondylodiscitis.
Pandit HG., Sonsale PD., Shikare SS., Bhojraj SY.
Tuberculous affection of the spine can present in different ways. Plain radiographs may fail to show any abnormality. Bone scintigraphy can be a very useful tool in the diagnosis and management of patients with tuberculous spondylodiscitis. This is a retrospective study of 40 patients in whom bone scan was performed using 99mTc-MDP (technetium methylene diphosphonate) before starting anti-tuberculous therapy or any surgical intervention. Four different types of uptake were noted. The uptake was abnormal in 38 out of 40 patients, giving a sensitivity of 95%. Multicentricity was picked up in 25% of cases. No skull lesion was noticed in any of these patients. Rib lesions were found in six patients (ten ribs affected). The rib lesion was always a typical band pattern. This paper outlines the advantages as well as limitations of bone scan in tuberculous affection of the spine.