[Method for in vivo measurement of intraosseous pressure of the patella].
During the development of degenerative joint disease (osteoarthritis, chondropathy), a diagnostic or even pathogenetic role is attributed to the phenomenon of intraosseous pressure (IOP). Owing to technical problems and a lack of systematic experimental or clinical studies on the control mechanisms of the IOP, the actual importance of this factor is still not known with certainty. Now, a measuring method that enables correct recording of the IOP and standardized on-line processing of the measured signal minimize artefact-related problems. The technique is evaluated for reliability in an in vitro model of the human patella and in a limited clinical study of the IOP in patients undergoing knee surgery for various reasons. Factors such as intra-articular effusion, joint position or changes in intra-articular soft tissue are examined for their influence of the primary signal.
Hauf
W
W
Orthopädische Klinik und Poliklinik der Universität München, Klinikum Grosshadern.
Mittlmeier
T
T
Hagena
F W
FW
Plitz
W
W
D005260:Female; D006801:Humans; D006874:Hydrostatic Pressure; D007719:Knee Joint / Q000503:physiopathology* / Q000601:surgery; D008838:Microcomputers; D008875:Middle Aged; D010003:Osteoarthritis / Q000503:physiopathology* / Q000601:surgery; D010007:Osteochondritis / Q000503:physiopathology* / Q000601:surgery; D010329:Patella / Q000503:physiopathology* / Q000601:surgery; D016059:Range of Motion, Articular / Q000502:physiology; D012815:Signal Processing, Computer-Assisted / Q000295:instrumentation*
Methode zur In-vivo-Messung des intraossären Druckes an der Patella.