Association between pain and gait instability in patients with lumbar disc herniation.

OBJECTIVE: To determine whether pain is associated with gait instability in patients with lumbar disc herniation (LDH). METHODS: This retrospective cross-sectional study used data from electronic medical records. Among patients with lumbar back pain caused by LDH between January 2017 and July 2019, patients that underwent gait analysis were included. LDH was diagnosed using magnetic resonance imaging. An OptoGait photoelectric cell system was used for gait evaluation. Instability was measured using a gait symmetry index. Multivariate linear regression analysis was performed to determine the association between lumbar pain and gait instability. RESULTS: A total of 29 patients (12 females [41.4%] and 17 males [58.6%]; mean ± SD age, 40.6 ± 12.0 years) with LDH were enrolled in the study. With each 1-point increase in lumbar pain on the numeric rating scale, the symmetry index of the stance phase (0.33; 95% confidence interval [CI] 0.04, 0.62), swing phase (0.78; 95% CI 0.14, 1.43) and single support (0.79; 95% CI 0.15, 1.43) increased. CONCLUSIONS: Gait instability in patients with LDH may occur due to an increase in pain.

A survey on Koreans' preferred type of collaboration between conventional medical and traditional Korean medicine doctors.

ABSTRACT: Although collaborative treatment by traditional Korean medicine doctors (KMDs) and medical doctors occurs, it is mainly done by referral. As no survey of the general public's preference for the type of collaboration has ever been conducted, we aimed to investigate Koreans' preferences for a collaborative treatment type.The responders were extracted by random digit dialing and then reextracted using the proportional quota sampling method by sex and age. From July to October 2017, telephone interviews were conducted and the participant responses regarding treatment history for spinal or joint diseases, experiences with collaborative treatment, and preferred type of collaborative treatment were recorded.Of the 1008 respondents, 44.64% reported a history of treatment for spinal or joint diseases at a medical institution. The concurrent collaborative treatment system, in which both KMDs and medical doctors are present in one location participating in the treatment concurrently, was the most preferred system among the respondents. Respondents who reported experience with traditional Korean medicine hospitals were more likely to prefer a one-stop treatment approach than those who did not have experience with traditional Korean medicine hospitals (adjusted odds ratio: 1.73; 95% confidence interval: 1.12-2.68). Respondents who were familiar with collaborative treatment but did not report any personal experience with it were more likely to prefer a one-stop treatment approach than those who were not familiar with collaborative treatment (adjusted odds ratio: 1.82; 95% confidence interval: 1.37-2.44).Koreans prefer a concurrent type of collaborative treatment system by KMDs and medical doctors. Therefore, efforts and support are needed to increase the application of the concurrent type of collaborative system.

Generating a Vertebrae-based Method to Discriminate between Korean and U.S. White Male Casualties from the Korean War.

Low recovery rate of intact crania in conflict-related contexts necessitates the use of postcranial elements for ancestry estimation. This study aimed to develop a new method to discriminate between Korean and U.S. White casualties from the Korean War using vertebrae. Maximum body heights of C2 through L5 were measured from 75 Korean and 51 U.S. males to generate discriminant functions. U.S. vertebral heights were statistically greater than Koreans in 18 out of 23 vertebrae (C2, C4-6, T3-6, and T8-L5). The functions with lumbar vertebrae tended to yield higher correct classification ratios (CCR) than those with cervical or thoracic vertebrae. Inclusion of the femur and tibia lengths in the vertebrae-involved functions enhanced the CCR's. Discriminant functions using the femur and tibia length were also presented. The results of this study are expected to complement the current practices of the Defense POW/MIA Accounting Agency and the Ministry of National Defense Agency for KIA Recovery and Identification, which are primarily based on cranial and dental morphology.