Posterior Cartilage Endplate Disruption on T1-weighted Magnetic Resonance Imaging as a Predictor for Postoperative Recurrence of Lumbar Disk Herniation.

Study Design: A retrospective cohort study.

Objective: This study aimed to investigate the relationship between disruption of cartilage endplates and postoperative recurrence of lumber disk herniation (LDH) using preoperative T1-weighted magnetic resonance imaging (MRI-T1WI).

Summary Of Background Data: Recurrence of LDH is a relatively common complication after discectomy.

Mortality, Analgesic Use, and Care Requirements After Vertebral Compression Fractures: A Retrospective Cohort Study of 18,392 Older Adult Patients.

Background: Vertebral compression fractures (VCFs) in older adults cause considerable health and socioeconomic burdens due to worsening ability to perform activities of daily living. The long-term effects of VCFs on patient outcomes, particularly prolonged analgesic use and functional decline, remain unknown. The aims of this study were to examine long-term clinical outcomes and to determine the risk factors for persistent pain and functional disability after VCFs.

Usefulness of the preoperative thoracic inlet angle in comparison to the T1 slope for predicting cervical kyphosis after laminoplasty.

Purpose: Thoracic inlet angle (TIA) is a sagittal radiographic parameter with a constant value regardless of posture and is significantly correlated with the sagittal balance of the cervical spine. However, the practical use of TIA has not been studied. This study aimed to investigate the usefulness of the preoperative TIA for predicting the development of kyphotic deformity after cervical laminoplasty in comparison to the preoperative T1 slope (T1S).

The ultrasonographic assessment of the morphologic changes in the ulnar nerve at the cubital tunnel in Japanese volunteers: relationship between dynamic ulnar nerve instability and clinical symptoms.

Background: We investigated the differences in the prevalence of ulnar nerve instability (UNI) by hand dominance and evaluated the relationship between UNI and morphologic changes in the ulnar nerve and the clinical findings and upper limb function.

Methods: This study examined 153 healthy participants (n = 306 elbows; 44 men, 112 women; mean age 65.4 years) who underwent ultrasonography to assess the ulnar nerve cross-sectional area (UNCSA) at three points of the bilateral cubital tunnel at 30° of elbow flexion.