paraesthesia
paresthesia
Internal fixation is the medical term meaning repairing fractures with pins.
Numbness is anaesthesia/anesthesia. Tingling is paraesthesia/paresthesia. (Spelling dependant on whether you are from the UK or America)
Pines and needles doesn't mean anything. I think you are confusing the term with pins and needles, which does mean that you are tense with anticipation.
The phobia of needles is called entetophobia and the phobia of needles and pins is called belonephobia. The medical term Trypanophobia, is rarely used. Tryanophobia refers to an extreme and irrational fear of all the medical procedures that involve use of syringes, injections and even hypodermic needles. The phobia of needles is similar to aichmophobia, that is, a morbid fear of all sharp things. These sharp objects include needles, knives, sharp end of an umbrella and even a pointing finger! However, the term tryanophobia is not used and is generally referred to as phobia of needles or needle phobia.
Syncope is the medical term meaning fainting.
Anacusis is the medical term meaning complete deafness.
Lamina is the medical term meaning layers.
Sensation is the medical term meaning feeling.
Eructation is the medical term meaning burping.eructation
Metastasize is the medical term meaning "to spread."
Stasis is the medical term meaning stopping.
Strabismus is the medical term meaning cockeye.