Roentgen stereophotogrammetry
Roentgen Stereophotogrammetry
Roentgen Stereophotogrammetry (pronounced: rönt-gen steh-reh-foh-toh-gram-meh-tree) is a medical imaging technique used to measure the movement and position of bones and implants in three dimensions. The term is derived from the German physicist Wilhelm Conrad Röntgen, who discovered X-rays, and the Greek words "stereo" (meaning solid), "photo" (meaning light), and "grammetry" (meaning measurement).
History
Roentgen Stereophotogrammetry was first introduced in the 1960s by the Swedish orthopedic surgeon, Gösta Hägglund. He developed this technique to study the movement of the hip joint in patients with hip arthroplasty.
Technique
In Roentgen Stereophotogrammetry, two simultaneous radiographs are taken from different angles. These images are then combined to create a three-dimensional model of the bone or implant. This model can be used to measure the position and movement of the bone or implant with high precision.
Applications
Roentgen Stereophotogrammetry is primarily used in orthopedic research to study the movement and position of bones and implants. It is particularly useful for evaluating the stability of orthopedic implants and for studying the biomechanics of joints.
Related Terms
- Radiography: The use of X-rays to view a non-uniformly composed material such as the human body.
- Orthopedics: The branch of medicine dealing with the correction of deformities of bones or muscles.
- Biomechanics: The study of the mechanical laws relating to the movement or structure of living organisms.
External links
- Medical encyclopedia article on Roentgen stereophotogrammetry
- Wikipedia's article - Roentgen stereophotogrammetry
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