CHAP. XVII. Of a DISLOCATION of the OS SA∣CRƲM, and RƲMP-BONE.
I. IT is called in Greek, 〈 in non-Latin alphabet 〉〈 in non-Latin alphabet 〉, & 〈 in non-Latin alphabet 〉〈 in non-Latin alphabet 〉. in Latin, Dislocatio vel Luxatio Ossis Sacri: & Luxatio Ossis Coccygis: in English, a Luxation of the Great Bone; and of the Rump-bone.
II. What kind of Bones these are, we have described in lib. 6. cap. 28. and 29. and how a Fra∣cture of them is to be cured; we now come to show you how to help them being Luxated: they may be distorted either inwardly or outwardly, but seldom to ei∣ther side.
III. The Causes. They may be Luxated by some violent Exter∣nal force, either by great and vehement blows upon the But∣tocks, or Parts adjacent, or falls from an high place, &c.
IV. The Signs. If either of these Bones are dislocated, the Pa∣tient cannot bring his Heel to his Buttocks: neither unless with much force, can he bend his Knee.
V. He goes to Stool with very much Pain; nor can he sit easily, or without Pain; and if he sits at all, it must be upon a hollow Chair, or a Chair with a hole in its bottom.
VI. The Prognosticks. The Cure will scarcely be done or perfe∣cted till about twenty days after the Bone is set: during which time, the Patient must not go to Stool, unless sitting upon a hollow Seat, lest the Bone should fall out of its place again.
VII. The Cure. If the Luxa∣tion is outwards, you may reduce it by gently thrusting it back again with your Hand.
VIII. But if the Luxation is in∣wards, you must put the fore-Fin∣ger of the Right Hand up into the Anus, to the Part affected, and then strongly raise up the Bone; whilst with your other Hand on the outside, you put then in their true places.
IX. This done, strengthning Emplasters are to be apply'd to the dislocared Part, made of fine Bole, Terra Sigillata, Catechu, Sanguis Draconis, Frankincense, Mastick, and Crocus Martis astrin∣gens, made up with the Whites of Eggs, &c. And then it is to be bound up, as we have taught in Fractures of these Parts.