MRI genicular nerve mapping: a novel approach to sagittal genicular nerve localization.

Background And Objectives: Chronic knee pain, including postarthroplasty knee pain, is a major cause of morbidity. Radiofrequency ablation of genicular nerve branches is a treatment option. The literature to date has demonstrated and recommended consistent rhizotomy targets in the coronal and axial position of the three primary genicular nerve branches (superomedial genicular nerve, superolateral genicular nerve, inferomedial genicular nerve).

Mass-like calcific peri-arthritis in the wrist: a rare case presenting as acute carpal tunnel syndrome and requiring surgical intervention.

Hydroxyapatite deposition disease (HADD) is a common localized disorder characterized by deposition of hydroxyapatite in soft tissues. These hydroxyapatite deposits can be found in the periarticular soft tissues such as bursae, joint capsules, tendon sheaths, and ligaments as well as within the tendons themselves, and intra-articular involvement has also been described [1,2]. We present a case of a 50-year-old female with acute symptoms of carpal tunnel syndrome secondary to partially liquified, mass-like, inflammatory calcific peri-arthritis.

A novel, evolutionarily conserved enhancer of cone photoreceptor-specific expression.

The alpha subunit of cone transducin (TalphaC) is expressed exclusively in cone photoreceptors of the eye and pineal. TalphaCisakey phototransduction protein, and inherited mutations in TalphaC cause total color blindness in humans. We use transgenic zebrafish to identify and characterize cone photoreceptor regulatory element 1 (CPRE-1) a novel 20-bp enhancer element in the TalphaC promoter (TalphaCP).