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Year : 2019  |  Volume : 2  |  Issue : 2  |  Page : 128-133

A clinical and radiological study of nontraumatic coccygodynia in Indian population

Department of Spine, Stavya Spine Hospital and Research Institute, Ahmedabad, Gujarat, India

Correspondence Address:
Bharat R Dave
Stavya Spine Hospital and Research Institute, Ahmedabad, Gujarat
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/isj.isj_15_18

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Background: Nontraumatic coccygodynia is poorly understood. Dynamic radiographs help to identify a radiological lesion. This study was performed to evaluate these parameters and define a line of management. Materials and Methods: A total of 46 cases with nontraumatic coccygodynia and 46 controls who met the inclusion criteria were evaluated using dynamic radiographs between June 2015 and May 2017. Radiological parameters, such as sagittal movement of coccyx, intercoccygeal angle (ICA), base angle (BA), and angle of pelvic rotation (APR), were calculated and compared between cases and controls to identify the radiological lesion in cases. On the basis of clinico-radiological findings, a treatment algorithm for these patients was proposed. Results: A total of 46 cases and 46 controls were studied. The mean age was 41.8 years in cases and 40.6 years in controls. Body mass index (BMI) ranged from 19 to 33. Twenty-nine cases had BMI >25. Average visual analog scale score at initial presentation (6.9), at 6 weeks (4.7), and final follow-up (3.9) was noted. ICA ranged from 1° to 21° (mean 11.12°). BA ranged from 0° to 83° (mean 41.41°). APR ranged from 2° to 33° (mean 14.74°). Twenty-seven patients had a good relief with local hydrocortisone injection and manipulation, whereas nine cases needed coccygectomy. Conclusion: Dynamic radiographs help in defining the radiological parameters and planning treatment. The sagittal movement of extension, posterior subluxation, higher BA, and low APR are the radiological findings seen in patients of nontraumatic coccygodynia. Majority of patients respond to conservative management; however, few may need surgical intervention.

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