Metallosis: Metallosis is the putative medical condition involving deposition and build-up of metal debris in the soft tissues of the body.Robot-assisted double heart valve replacement: The first robotic-assisted double heart valve replacement was carried out in the Chennai region of India at Chettinad Hospital. Considered a rare form of surgery, this is the first instance of such a procedure using robotic surgery.Utkal Prantiya Marwari Yuva ManchPhotovoltaic retinal prosthesis: Photovoltaic retinal prosthesis is a technology for restoring sight to blind patients suffering from degenerative retinal diseases. In retinal degenerative diseases such as Retinitis Pigmentosa and Age-Related Macular Degeneration, patients loss ‘image capturing’ photo-receptors, but, neurons in the ‘image-processing’ inner retinal layers are relatively well preserved.Running room (dentistry): In implant dentistry, running room refers to the apico-coronal distance between the platform of a dental implant and the gingival margin. It is a critical factor in restorative implant dentistry because it is effectively the "vertical distance [available subgingivaly] to make a transition from the smaller diameter prosthetic platform of an implant to the larger cross-sectional cervical shape of the tooth being restored.Kurt KossmannOpacifier: An opacifier is a substance added to a material in order to make the ensuing system opaque. An example of a chemical opacifier is titanium dioxide (TiO2), which is used to opacify ceramic glazesTin Oxide ( SnO2 ) Stannic Oxide – Properties and Applications, The A to Z of Materials.John C. Snidecor: John Clifton Snidecor (October 18, 1907 - December 14, 1983) was an American professor and educator. He joined the faculty at Santa Barbara College of the University of California (now UCSB) in 1940 and served as acting provost of from February to June 1956.Ocular prosthesisJoint replacementThomas Girdlestone: Thomas Girdlestone (Holt, Norfolk, 1758 – 25 June 1822) was an English physician and writer.Revision using distal inflow: Revision Using Distal Inflow (RUDI) is a surgical treatment for Dialysis-associated Steal Syndrome.George Allan HancockCement: A cement is a binder, a substance that sets and hardens and can bind other materials together. The word "cement" can be traced back to the Roman term opus caementicium, used to describe masonry resembling modern concrete that was made from crushed rock with burnt lime as binder.Silastic: Silastic (a portmanteau of 'silicone' and 'plastic') is a trademark registered in 1948 by Dow Corning Corporation for flexible, inert silicone elastomer.Minimally invasive hip resurfacing: Minimally invasive hip resurfacing (MIS) is "total or partial hip surgery that can be carried out through an incision of less than 10 cm (3.94 inches) without imparting great forces on the anatomy or compromising component positioning"Comis Orthopaedics websiteA Plague of Lighthouse Keepers: "A Plague of Lighthouse Keepers" is a track from the English band Van der Graaf Generator's fourth album Pawn Hearts (1971). It is a concept piece over 23 minutes long, which comprises the whole B-side of the album.Aortic valve replacementOxford knee score: The Oxford Knee Score (OKS) is a Patient Reported Outcome questionnaire that was developed to specifically assess the patient's perspective of outcome following Total Knee Arthroplasty. The OKS has subsequently been validated for use in assessing other non-surgical therapies applied to those suffering from issues with the knee.Polyethylene naphthalate: Polyethylene naphthalate (PEN) (Poly(ethylene 2,6-naphthalate) is a polyester with good barrier properties (even better than Polyethylene terephthalate). Because it provides a very good oxygen barrier, it is particularly well-suited for bottling beverages that are susceptible to oxidation, such as beer.Cingulate cortex: The cingulate cortex, also known as limbic cortex, is a part of the brain situated in the medial aspect of the cerebral cortex. The cingulate cortex includes the entire cingulate gyrus, which lies immediately above the corpus callosum, and the continuation of this in the cingulate sulcus.Stagemaster