A study of pavlov ratio in Thai people.

ABSTRACT

A study of lateral cervical spine x-rays in 50 normal Thai volunteers was carried out to find the Pavlov ratio in Thai people. The results were compared with the standard values commonly used as reference values. These values are derived from published figures obtained in Westerners whose build and bone structure are quite different from Thais. The results of this study showed that the corresponding values of the Pavlov ratio at spinal levels C3, C4, C5, C6 and C7 were 0.96, 0.96, 0.98, 0.95 and 0.91. The average Pavlov ratio for all levels was found to be 0.95. There is no different from the foreign results. Hence, the use of published reference of the narrow status of the cervical canal can be confidently compared to reference values now known to be appropriate to Thais.