Gerdy’s tubercle is a lateral tubercle of the tibia, located where the fascia lata or iliotibial band inserts. It was named after French surgeon Pierre Nicolas Gerdy (1797–1856).
Used as a a landmark, along with the femoral condyle in injections to relieve the pain associated with iliotibial band syndrome.
Ober’s test. Used in diagnosing iliotibial band syndrome.
“The Ober’s test can be used to assess tightness of the iliotibial band. With the patient lying on the side with the unaffected side down and the unaffected hip and knee at a 90-degree angle, the examiner stabilizes the pelvis, then abducts and extends the affected leg until it is aligned with the rest of the patient’s body. The affected leg is lowered into adduction. If the iliotibial band is normal in length and unaffected, the leg will adduct and the patient will not experience pain. If the iliotibial band is tight, the leg will remain in the abducted position and the patient may have lateral knee pain. A tight iliotibial band contributes to the excess friction placed on the iliotibial band as it slides over the femoral condyle during flexion and extension of the knee.”
In 1906, Dr. Alois Alzheimer, specifically identified a collection of brain cell abnormalities as a disease.
"Trimalleolar fracture. Fracture of the lateral malleolus, the posterior malleolus, and either a fracture of the medial malleolus or a disruption of the deltoid ligament with visible widening of the mortise on ankle radiograph.”
Rosen’s Emer. Med. 7e.
Considered unstable, and requires urgent orthopedic attention.
“Fracture of the distal radius with dorsal displacement and volar angulation, with or without an ulnar styloid fracture. Most common wrist fracture in adults, especially in the elderly. Results from fall on an outstretched hand. Also known as silver fork deformity, which accurately describes the gross appearance in the lateral view. First described by Colles in 1814, before the advent of radiography.”
Rosen’s Emer. Med. 7e
"Fracture of the tip of the spinous process of the sixth or seventh cervical vertebra. First described in Australian clay shovelers who sustained a fracture of the spinous process by traction as they lifted heavy loads of clay.”
- Rosen’s Emer. Med. 7e.
“Solitary fracture of radial styloid. Occurs from tension forces sustained during ulnar deviation and supination of the wrist. Name derives from occurrence in chauffeurs who suffered violent, direct blows to the radius incurred while turning the crank on a car, only to have it snap back, during previous eras.”
- Rosen’s Emer. Med, 7e.