Additionally they may hear the creaking and cracking of joints, the sound of their footsteps when walking or running, their heartbeat and the sound of chewing and other digestive noises. Some sufferers of this condition experience such a high level of conductive hyperacusis that a tuning fork placed on the ankle will be heard in the affected ear. The bizarre phenomenon of being able to hear the sound of the eyeballs moving in their sockets (e.g. when reading in a quiet room) "like sandpaper on wood" is one of the more distinctive features of this condition and is almost exclusively associated with SCDS. Tullio phenomenon, another of the more identifiable symptoms leading to a positive SCD diagnosis is sound-induced loss of balance. Patients showing this symptom may experience a loss of equilibrium, a feeling of motion sickness or even actual nausea, triggered by normal everyday sounds. Although this is often associated with loud noises, volume is not necessarily a factor. Patients describe a wide range of sounds that affect balance: the rattle of a plastic bag; a cashier tossing coins into the register; a telephone ringing; a knock at the door; music; the sound of children playing and even the patients own voice are typical examples of sounds that can cause a loss of balance when this condition is present, although there are countless others.
Bone cement has been the material most often used, in spite of its tendency to slippage and resorption, and a consequent high failure rate; recently, soft tissue grafts have been substituted. Eponym
Occasionally this disorder has been referred to as Minors syndrome, after its discoverer, Lloyd B. Minor. However, that eponym has also been given to an unrelated condition, the paralysis and anaesthesia following a spinal injury, which is named after the Russian neurologist, Lazar Salomowitch Minor (1855–1942). In the latter case this term is now nearly obsolete. References
External links
Ward, Bryan K.; Carey, John P.; Minor, Lloyd B. (28 April 2017). "Superior Canal Dehiscence Syndrome: Lessons from the First 20 Years". Frontiers in Neurology. 8: 177. doi:10.3389/fneur.2017.00177. PMC 5408023. PMID 28503164.