Category: S
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Spring finger
Arrested movement of a finger in flexion or extension followed by a jerk.
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Spring fever
A feeling of lassitude, rejuvenation, or increased sex drive that affects some people in the spring.
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Spring
The season of the year that comes after winter and before summer.
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Syndesmotic ankle sprain
Damage to the ligamentous structures of the distal tibiofibular syndesmotic joint, resulting from dorsiflexion or external rotation of the talus within the ankle mortise, or both, which in turn causes spreading of the joint. The distal tibiofibular syndesmosis is formed by the anterior tibiofibular ligament, the interosseous membrane, and the posterior tibiofibular ligament.
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Sprain of foot
Trauma to the ligaments of the foot not involving the ankle.
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Sprain of back
Overstretching of the spinal ligaments, often involving the surrounding muscles and spinal structures. Small fractures of the vertebrae are often associated.
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Sprain of ankle
Trauma to the ligaments of the ankle and foot, possibly involving tendon injury, but without an avulsion. Sprains of the lateral ligaments (most commonly the anterior talofibular ligament) account for approx. 90% of all ankle sprains.
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Spot compression
The application of local pressure to a region of the breast in which an anomaly was found during routine mammography. The locally imaged portion of breast tissue is magnified by compression and easier to view than the surrounding breast tissue because the volume of tissue in the image is minimized.
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Sporulation
The production of spores, a method of reproduction in fungi, mosses, and ferns.
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Sports vision
The use of eye safety procedures, ophthalmology, optometry, and visual training to protect or enhance athletic performance.