Longitudinal tear of the medial meniscus posterior horn in the anterior cruciate ligament-deficient knee significantly influences anterior stability.

Background: Longitudinal tears of the medial meniscus posterior horn (MMPH) are commonly associated with a chronic anterior cruciate ligament (ACL) deficiency. Many studies have demonstrated the importance of the medial meniscus in terms of limiting the amount of anterior-posterior tibial translation in response to anterior tibial loads in ACL-deficient knees.

Hypothesis: An MMPH tear in an ACL-deficient knee increases the anterior-posterior tibial translation and rotatory instability.

Comparison of radiographic and computed tomographic measurement of pedicle and vertebral body dimensions in Koreans: the ratio of pedicle transverse diameter to vertebral body transverse diameter.

This study was designed to investigate the characteristics of pedicle transverse diameters (PD), vertebral body transverse diameters (VBD), especially the ratios of PD/VBD (CT ratio), which has never been discussed, in Koreans using computed tomography (CT) scans and to evaluate the possibility of obtaining more accurate estimations of PD from plain radiographs using the CT ratios in each spine level. The T1-L5 vertebrae of 50 participants were analyzed prospectively with CT scans (CT-VBD and CT-PD), and the T9-L5 vertebrae of the same participants were investigated with plain radiographs (X-VBD and X-PD). The CT ratio had a higher correlation with the CT-PD (r2 = 0.

Transradioulnar single Kirschner-wire fixation versus conventional Kirschner-wire fixation for unstable fractures of both of the distal forearm bones in children.

The purpose of this study was to introduce transradioulnar single Kirschner-wire (K-wire) fixation technique for unstable fractures of both of the distal forearm bones in children and to evaluate the differences in clinical and radiographic results of osteosynthesis between this method and conventional K-wire fixation. Forty-one patients (20 conventional K-wire fixation, 21 transradioulnar single K-wire fixation) were reviewed who underwent a closed or mini-open reduction with K-wire fixation for fractures of both of the distal forearm bones. Their mean age at operation was 10.