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Research

EFFECTIVENESS OF WHO REGIME IN SPINAL TUBERCULOSIS: PROSPECTIVE STUDY

8th Combined Meeting Of Orthopaedic Research Societies (CORS)



Abstract

Summary

There is little consensus regarding the regime for treatment of tuberculosis of spine, although WHO has laid down guidelines couple of years back classifying spinal tuberculosis in Category 1. This study proves the efficacy of WHO regime in spinal tuberculosis by clinico-radiological evaluation.

Introduction

The medical fraternity is divided over the duration of chemotherapy in cases spinal tuberculosis. WHO clearly recommend spinal tuberculosis under Category I, but not accepted by most clinicians.

Patient and Methods

In this prospective study during the period between August 2005 and July 2012, a total of 76 cases were diagnosed and evaluated clinico-radiologically to test the efficacy of WHO protocol (2HRZE+4HR) in our hospital with a mean follow up of 50 months (30 – 80 months).

Results

Spinal tuberculosis was seen in 56% of all osteoarticular tuberculosis. Maximum population was between 11–50 years, females were involved more than males (66%), and regional distribution was different in males (Lumbar) and females (Thoracic). Skip and multifocal lesions were seen in 13% (6 cases), more common in immune compromised cases. Pain was the most common symptom (95%) followed by constitutional symptoms. Radiographic changes were nonspecific, appear late and suggestive of tuberculosis in 53%case, MRI is very useful in diagnosing in 95% cases especially when X ray is contributory. ESR is useful tool for follow up of patients, elevated in 94%cases. Results were evaluated on clinical, hematological and radiological basis. Of the total 64cases (after dropouts, lost in follow up, mortality), 50 patients (78%) received treatment for 6 months and14 cases for more than 6months (P value<0.001). No MDR cases were present. In 50 patients fall in ESR at the end of 2 months was found to be statistically significant (P value<0.05) and hence were given a treatment for 6 months, the fall at the end of 6 months was highly significant (P value<0.001). In rest of the 14 cases the duration of treatment was given for more than 6 months as the trend of fall of ESR was not significant. MRI changes were assessed in the form of osteitis, osteitis with discitis, abscess formation and granulation tissue on initiation of treatment, completion of treatment and 6 months after completion of treatment.

Conclusion and Discussion

The experience shows that spinal tuberculosis is common in a tertiary health care centre in India with diagnosis possible by combination of clinical evaluation and radiological evaluation. Statistical significance was found in clinical symptoms, ESR trends and MRI evaluation in cases receiving 6 months of chemotherapy. With this study, WHO short course chemotherapy was found to be effective in spinal tuberculosis, with no relapse over a period of 6 years.