Supracondylar process

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Small supracondylar process in the lateral x-ray of the elbow.
Supracondylar process in the lateral x-ray of the elbow.

The supracondylar process is a rare atavistic formation on the anterior ulnar side of the distal end of the humerus , about 6 to 7 cm proximal to the joint space. Synonyms are processus supracondylicus, tuberculum supratrochleare, humerus spur and English humeral supracondylar spur . It is a bony process that occurs in 0.7% - 2% of all people. The first description goes back to the anatomist F. Tiedemann in 1822. (quoted from)

This bone spur receded during phylogenesis , but is still present in other vertebrates (e.g. cats ) as a supracondylar foramen . A ligament ( Struthers ligament ) extends from this process to the medial epicondyle of the humerus and serves as the origin of the pronator teres muscle .

The brachial artery and the median nerve passing at present Processus supracondylar osteofibrous by a channel, the Canalis supracondylicus, which can lead to compression of the two structures.

In cats, too, these conduction pathways run through the supracondylar foramen.


Individual evidence

  1. L. Kessel: The surgery of some strictures and stenoses. Tunnel syndromes at the elbow. In: Annals of the Royal College of Surgeons of England. Vol. 50, No. 5, May 1972, pp. 323-324, PMID 5082457 , PMC 2388090 (free full text).
  2. F. Tiedemann: Tabula arteriarum corporis humani. Karlsruhe
  3. ^ CJ Wirth, L. Zichner, AK Martini: Orthopedics and Orthopedic Surgery. In: W. Winkelmann (editor): Tumors, tumor-like diseases , Georg Thieme Verlag, 2003, ISBN 3-13-126181-1
  4. G. Andreisek, DW Crook, D. Burg, B. Marincek, D. Weishaupt: Peripheral neuropathies of the median, radial, and ulnar nerves: MR imaging features. In: Radiographics: a review publication of the Radiological Society of North America, Inc Volume 26, Number 5, 2006 Sep-Oct, pp. 1267-1287, ISSN  1527-1323 . doi: 10.1148 / rg.265055712 . PMID 16973765 . (Review).

Web links

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