A note on the radio-carpal articulation / by Francis J. Shepherd.

  • Shepherd, Francis J. (Francis John), 1851-1929.
Date:
[1891?]
Catalogue details

Licence: Public Domain Mark

Credit: A note on the radio-carpal articulation / by Francis J. Shepherd. Source: Wellcome Collection.

Provider: This material has been provided by The Royal College of Surgeons of England. The original may be consulted at The Royal College of Surgeons of England.

    1/4
    A NOTE ON THE ^RADIO-CARPAL ARTICULATION. By Francis J. Shepherd, M.D., Professor of Anatomy, M‘Gill University, Montreal. (Read at the meeting of the Association of American Anatomists held in Boston, TJ.S.A., December 1890.) One of the most complete and generalised forms of carpus is seen in the Water-tortoise. In this animal it consists of two rows of bones, the distal row containing five bones, and the proximal three, with a central bone between the two rows. The bones of the first or proximal row are the “ radial e, “ ulnare,” and “ intermedium,” which correspond in the human carpus to the scaphoid, semilunar and pyramidal bones, the radiale and ulnare articulate with the radius and ulna, while the intermedium, as its name implies, is placed between the two others, and articulates with both the radius and ulna. Now the same thing occurs in the human carpus. The scaphoid articulates with the radius, the pyramidal bone with the ulna or with the cartilage interposed between its upper surface and the ulna, while the semilunar bone (intermedium), by its upper surface, articulates with radius, and also with the meniscus, which separates it from the ulna. The object of my paper is to show that the semilunar always articulates with the ulna, not immediately but by means of the interposed cartilage or menis- cus. In only a few text-books^ of anatomy is this fact stated. The majority state that the upper surfaces of the scaphoid and lunar bones correspond with the radius, and that the upper surface of the pyramidal bone corresponds with the triangular fibro-cartilage, which separates the ulna from the wrist-joint. Henle many years ago taught the proper method of ai’ticu- lation, and described it in his Handbuch; but most of the text- books on anatomy have ignored his observations. ^ E.q., Henle, Quain, Cunningham, Ellis. In describing the semilunar bone, all the works on Anatomy I have consulted fail to mention the connection of the bone with the meniscus.