G
Giving way
When one talks of the knee 'giving way' it means that the knee suddenly and unexpectedly is unable to support the person, and the leg just buckles, leading to stumbling or falling.
Glucosamine
Glucosamine is an amino sugar that is found in the 'extra cellular matrix' (background material) of cartilage and is thought to promote its formation and repair.
Gonarthritis
'Gon' means 'knee' and 'gonarthritis' simply refers to arthritic damage in the knee.
Gonarthrosis
'Gon' means 'knee'. 'Arthrosis' means 'disorder of the joint'. Gonarthrosis thus means a disorder of the knee joint, generally implying early joint surface damage of any kind.
Goniometer
A goniometer is a device for measuring the range of motion of a joint.
Gore-Tex
Gore-Tex is the trade name for expanded polytetrafluoroethylene (PTFE).
Gout
Gout is a disorder characterised by severe, painful joint inflammation due to the deposition in the joint of uric acid crystals.
GP
Abbreviation for General Practitioner, ie family doctor.
Gracilis
The gracilis is one of the 'pes anserinus' tendons.
Grade IV arthritis
Grade IV arthritis is arthritic destruction of the joint cartilage to the point of exposure of the underlying bone.