The hyomental distance ratio (HMDR) is the ratio between the hyomental distance (HMD) (the distance between the hyoid bone and the tip of the chin) at the extreme of head extension (HMDe) and the one in the neutral position (HMDn).
Preoperative evaluation of extension capacity of the occipitoatlantoaxial complex in patients with rheumatoid arthritis: Comparison between the Bellhouse test and a new method, hyomental distance ratio.
Diagnostic predictor of difficult laryngoscopy: The hyomental distance ratio.
Submandibular sonography: Assessment of hyomental distances and ratio, tongue size, and floor of the mouth musculature using portable sonography.
Hyomental distance ratio as a diagnostic predictor of difficult laryngoscopy.
A comparison of between hyomental distance ratios, ratio of height to thyromental, modified Mallamapati classification test and upper lip bite test in predicting difficult laryngoscopy of patients undergoing general anesthesia.
In our study, we tried to elucidate the role of ULBT as a simple bedside airway predictive test and other prevailing tests, the hyomental
distance (HMD), thyrosternal distance (TSD), and the mandible length (ML) in predicting difficulty in endotracheal intubation.