Biomaterial Database

The extensor mechanism of the knee. 2013

Simon Ostlere

Department of Radiology, Nuffield Orthopaedic Centre, Oxford University Hospitals, Oxford, UK. simon.ostlere@ouh.nhs.uk

Disorders related to the knee extensor mechanism are common and rarely require imaging. Non specific anterior knee pain, fracture, dislocation, overuse tendinopathy and chronic patellofemoral instability are the commonest conditions encountered. Imaging is used in acute trauma, and for the assessment of cases of anterior knee pain resistant to conservative measures. The role of the radiograph is now largely restricted to cases of suspected fracture. Ultrasound is the optimum technique for suspected tendon and bursal pathology and MRI is widely used for the assessment of dysplasia and instability of the patellofemoral joint, including acute dislocation.

UI	MeSH Term	Description	Entries
D007718	Knee Injuries	Injuries to the knee or the knee joint.	Injuries, Knee,Injury, Knee,Knee Injury
D007719	Knee Joint	A synovial hinge connection formed between the bones of the FEMUR; TIBIA; and PATELLA.	Superior Tibiofibular Joint,Joint, Knee,Joint, Superior Tibiofibular,Knee Joints,Superior Tibiofibular Joints,Tibiofibular Joint, Superior
D003952	Diagnostic Imaging	Any visual display of structural or functional patterns of organs or tissues for diagnostic evaluation. It includes measuring physiologic and metabolic responses to physical and chemical stimuli, as well as ultramicroscopy.	Imaging, Diagnostic,Imaging, Medical,Medical Imaging
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D013708	Tendon Injuries	Injuries to the fibrous cords of connective tissue which attach muscles to bones or other structures.	Injuries, Tendon,Injury, Tendon,Tendon Injury
D017847	Patellar Ligament	A band of fibrous tissue that attaches the apex of the PATELLA to the lower part of the tubercle of the TIBIA. The ligament is actually the caudal continuation of the common tendon of the QUADRICEPS FEMORIS. The patella is embedded in that tendon. As such, the patellar ligament can be thought of as connecting the quadriceps femoris tendon to the tibia, and therefore it is sometimes called the patellar tendon.	Ligamentum Patellae,Patellar Tendon,Patella Tendon,Ligament, Patellar,Ligaments, Patellar,Patella Tendons,Patellar Ligaments,Patellar Tendons,Tendon, Patella,Tendon, Patellar,Tendons, Patella,Tendons, Patellar
D018482	Muscle, Skeletal	A subtype of striated muscle, attached by TENDONS to the SKELETON. Skeletal muscles are innervated and their movement can be consciously controlled. They are also called voluntary muscles.	Anterior Tibial Muscle,Gastrocnemius Muscle,Muscle, Voluntary,Plantaris Muscle,Skeletal Muscle,Soleus Muscle,Muscle, Anterior Tibial,Muscle, Gastrocnemius,Muscle, Plantaris,Muscle, Soleus,Muscles, Skeletal,Muscles, Voluntary,Skeletal Muscles,Tibial Muscle, Anterior,Voluntary Muscle,Voluntary Muscles