(Chapter 23) Footnote 19:

Properly spelled gigglumoeidh/j. The citation of Hippocrates for baqmi/j, “cavity,” as referring to the articular fossae of the humerus is problematic. See De fracturis 2.22: “the hinge-like (gigglumoeidh/j) end of the humerus in this [locked] position being pressed into the cavity of the ulna (e)n th= tou= ph/xeoj baqmi/di) makes a straight line of the bones of the upper arm and the forearm . . .” Later in the same work, in describing treatment of a dislocation of the elbow (41.11) the Hippocratic author writes that the humerus is lifted “above its own socket,” u(pe\r th=j e(wutou= baqmi/doj. In these passages baqmi/j refers to a cavity not in the humerus but in the ulna, where it must be the trochlear notch. In 37.6, we read that the articular end of the humerus has “several cavities” (baqmi/daj plei/onaj) instead of the two described by Vesalius (Loeb translations by E.T. Withington). These are the only references to a baqmi/j in Hippocrates. The Greek terminology provided by Vesalius does not therefore exactly follow Hippocratic authority.