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Basics Description A benign membrane-lined, fluid-filled lesion of bone that develops in childhood and fills in by maturity Location: 80% occur in the proximal humerus and proximal femur. Other, less common, areas are the proximal tibia, distal tibia, distal femur, calcaneus, distal humerus, radius, fibula, ilium, ulna, and rib. Usually centrally located adjacent to the […] Basics Description A stress (microscopic) fracture occurs when: Repetitive stresses are applied to a bone faster than it is able to remodel to withstand this challenge. As the stressing force continues, the bone gradually fatigues and eventually breaks. Remodeling occurs in response to the stress but does not happen quickly enough to prevent the […] Basics Description Recurrent ankle sprains occurring primarily from an inversion stress on a plantarflexed ankle, which lead to chronic ankle pain and instability Divided into 2 types: Functional instability: Pain causes ankle to be unstable. Feeling of ankle giving way Neuromuscular deficit True mechanical instability: Frank insufficiency of ligaments Physiologic ROM is exceeded. Positive […] Basics Description Fractures of the distal end of the fibula and tibia are termed ankle fractures. Usually caused by the twisting of the body around a planted foot or a misstep that results in overstressing the ankle joint Severe fractures may result in dislocation of the ankle. 2 fracture classification systems are used currently: […] Basics Description Destructive, painful, lytic bone lesions occurring in young patients May occur primarily in bone (de novo) or develop within another benign bone lesion Can be locally aggressive and can cause a bone to balloon as a result of aneurysmal cystic expansion Occurs most often at the proximal ends of long bones and […] Basics Description This anatomic variant consists of an accessory ossicle located at the medial edge of the navicular Accessory ossicles are derived from unfused ossification centers. Considered an incidental finding on radiographs, but may become symptomatic Classification: 3 major types of accessory navicular adjacent to the posteromedial navicular tuberosity Type I: Small, 3-mm sesamoid […] Introduction Our feet are constantly under stress. It’s no wonder that 80 percent of us will have some sort of problem with our feet at some time or another. Many things affect the condition of our feet: activity level, occupation, other health conditions, and perhaps most importantly, shoes. Many of the problems that arise in […] Introduction Flatfeet (also known as pes planus) describes a condition in which the longitudinal (lengthwise) and/or medial (crosswise) arches of the foot are dropped down or flat. The entire bottom of the bare foot is in contact with the floor or ground surface during standing, walking, and other weight bearing activities. The condition is often […] |
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