[A novel retrograde intubation procedure for treatment of nasolacrimal duct obstruction].

Objective: To investigate the effect of a novel intubation procedure for the treatment of nasolacrimal duct obstruction.

Methods: Nasolacrimal duct obstruction patients with chronic dacryocystitis were selected for undergoing the procedure of intubation in outpatient clinic. This procedure was performed under local anesthesia.

Anatomic study of the synovial folds of the occipito-atlanto-axial joints.

This study was performed to observe and measure synovial folds of the occipito-atlanto-axial joints and to explore their clinical significance. Two hundred ninety eight occipito-atlanto-axial joints from 30 embalmed cadavers of children and 20 of adults were dissected to find the incidence, quantity, distribution, forms, dimension, and histology of synovial folds. Synovial folds were found in most joints in both groups except for the posterior median atlantoaxial joints.