F
Fissure
A fissure is a deep split in the articular cartilage covering the ends of the bone.
Fixation device
A fixation device is a manufactured device, often bio-degradeable, which is used to fix tissues in place until healing occurs.
Fixation of patellar fractures
Management of patellar fractures depends upon the number of fragments the bone has broken into, whether or not any fragments are displaced and also the integrity of the overlying skin. Page updated April 2024 by Dr Sheila Strover (Clinical Editor)
Fixed bearing
Fixed bearing knee replacements have a fixed polyethylene tibial insert locked with the tibial tray.
Flap tear
A flap tear of the meniscus is a peeling back of part of the one surface of the meniscus.
Flexion
Flexion means 'bending'. Page updated September 2023 by Dr Sheila Strover (Clinical Editor)
Flexion contracture
A flexion contracture or flexion deformity is when someone is not able to fully straighten their leg either actively or passively. Page updated September 2023 by Dr Sheila Strover (Clinical Editor)
Floating meniscus
A floating meniscus is a condition where the knee meniscus has come away from its normal attachment to the tibia and is 'floating' rather than fixed. Also called a 'meniscal avulsion'. Page updated January 2024 by Dr Sheila Strover (Clinical Editor)
Focal arthroplasty
A small implant of metal or plastic that replaces an area of damaged joint cartilage.
Focal cartilage defect
A focal cartilage defect is a circumscribed area of damage of the joint cartilage.