In fractures of the shaft an ordinary Thomas' knee splint, or a "walking calliper splint" which is fixed to the heel of the boot, may be worn when the patient gets up.
"Manual of Surgery Volume Second: Extremities--Head--Neck. Sixth Edition."
Alexander Miles Alexis Thomson
In the dark the Kingsdown coxswain put his lifeboat into the surf on the Goodwins; it was heavy, but they got through it safely, and found on the off-part of the Goodwins, towards its southern end-known as the South calliper-a large steamship aground.
"Heroes of the Goodwin Sands"
Thomas Stanley Treanor