A walking stick can either be made of wood or a light metal such as aluminium. The wooden sticks usually have a crook handle and cannot easily have multipoint tips. Aluminium walking sticks can either have a flat or "swan-neck" top and have the advantages of being adjustable in length and are able to have multiple points e.g. a tripod.
The correct length of a walking stick allows about 15 degrees of elbow flexion when the patient is standing upright with their arm by their side and holding the stick a little in front of and to the side.
Multipoint walking sticks include tripods and quadripods, both of which can have either flat, swan-neck or ergonomic handles.
Recent Related Research (from Pubmed)
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Learn about the knee in this month's members learn topic with book chapters including D. Magee 2014: Orthopedic Physical Assessment