Tendinous chiasm
Chiasma tendinum
- Latin synonym: Chiasma tendinum flexoris profundus digitorum
- Synonym: Tendinous chiasm of flexor digitorum profundus tendon
- Eponym: Camper’s chiasm
Definition
At the level of the PIP joint, the two slips of each flexor digitorum superficialis (FDS) tendon reunite deep to the FDP tendon to form a tendinous chiasm (Camper’s chiasm). The length and width of the chiasma tendinum in the middle finger is the longest and widest, while in the little finger it is the shortest and narrowest.
References
Text by Antoine Micheau, MD - Copyright IMAIOS
Petchprapa CN, Vaswani D. MRI of the Fingers: An Update. AJR Am J Roentgenol. 2019 Sep;213(3):534-548. doi: 10.2214/AJR.19.21217. Epub 2019 Jul 3. PMID: 31268729.
Gupta P, Lenchik L, Wuertzer SD, Pacholke DA. High-resolution 3-T MRI of the fingers: review of anatomy and common tendon and ligament injuries. AJR Am J Roentgenol. 2015 Mar;204(3):W314-23. doi: 10.2214/AJR.14.12776. PMID: 25714317.
Clavero JA, Alomar X, Monill JM, Esplugas M, Golanó P, Mendoza M, Salvador A. MR imaging of ligament and tendon injuries of the fingers. Radiographics. 2002 Mar-Apr;22(2):237-56. doi: 10.1148/radiographics.22.2.g02mr11237. PMID: 11896215.
