Intradural T12-L1 disc herniation in a patient with achondroplasia: A case report.

Background: There are very few reports of intradural disc herniations associated with achondroplasia described in the literature.

Case Description: A patient with achondroplasia presented with progressive paraparesis attributed to a magnetic resonance-documented intradural disc herniation at the T12-L1 level occupying more than 90% of the spinal canal. It was successfully removed through a T12 laminectomy with durotomy; note a laminectomy would have been contraindicated if this had been an extradural anterior/anterolateral disc.

Total Hip Arthroplasty Digital Templating: Size Predicting Ability and Interobserver Variability.

Background: During the last century, total hip arthroplasties have become more popular. They have had a huge impact on the quality of life, pain, range of motion, social interaction, and psychological well-being. A number of studies have emphasized the importance of using templates to choose the appropriate implant size when planning the surgery.