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Schenck Classification
The Schenck Classification gives an idea of the degrees of knee dislocation based on the number of ligaments damaged, and the presence of associated fractures.
Screw home mechanism
The screw home mechanism is a bony rotation in the joint that allows it to lock back and keep the knee stable while standing upright. Page updated May 2024 by Dr Sheila Strover (Clinical Editor)
Second look arthroscopy
A 'second look' arthroscopy is when a patient is pro-actively booked to have an arthroscopy just to check up on a previous surgical procedure.
Segond Fracture
A Segond Fracture is an avulsion of a small chip of bone off the lateral side of the femur, commonly seen in association with an anterior cruciate ligament rupture.
Semi-lunar cartilage
A semi-lunar cartilage is the old-fashioned name for a meniscus. 'Semi-lunar' means 'half-moon' and refers to the shape of the meniscus.
Semimembranosus
The semimembranosus muscle is one of the three hamstrings muscles of the upper leg. Page updated July 2024 by Dr Sheila Strover (Clinical Editor)
Semitendinosus
The semitendinosus muscle is one of the hamstrings muscles.
Semitendinosus graft
A semitendinosus graft is a transplant derived from the tendon of the semitendinosus muscle.
Semitendinosus tenodesis
Semitendinosus tenodesis is one of several surgical procedures to improve knee stability.
Septic arthritis
Septic arthritis in deep infection within the knee joint. It is a dreaded complication of knee injury or surgery.