Surgical and Radiologic Anatomy

, Volume 16, Issue 1, pp 121–124 | Cite as

Anatomic study of the orbital septum (22.10.93)

  • DS Brémond-Gignac
  • S Deplus
  • O Cussenot
  • J-P Lassau
Reports Of The Société Anatomique De Paris

Summary

The orbital septum separates the intraorbital fat from the palpebral part of the orbicularis oculi m. An anatomic study after injection of colorant into the intraorbital fat allows definition of a fibroadipose layer anterior to the orbital septum. This consists of radial fibers and extraorbital fatty lobules. The septum is derived embryologically from the mesenchyme of the second arch, but the structure of the anterior layer remains controversial. The septum has an important mechanical function in containing the orbital fat and is involved in orbital movements. A knowledge of these different layers facilitates surgical approaches and helps to define the anatomic landmarks in palpebral surgery for conditions such as ptosis and in blepharoplasty.

Key words

Orbit Orbital septum Palpebral surgery 

Etude anatomique du septum orbitaire

Résumé

Le septum orbitaire sépare la graisse intraorbitaire du muscle orbiculaire des paupières. Une étude anatomique après injection de colorant dans la graisse intraorbitaire permet d'individualiser un plan fibroadipeux antérieur au septum orbitaire. Celui-ci est composé de fibres radiaires et de lobules graisseux extraorbitaires. L'origine embryonnaire du septum dérive du mésenchyme du 2ème arc embryonnaire, mais la structure de sa partie antérieure reste controversée. Le septum a une fonction mécanique importante de contention de la graisse orbitaire et il participe à la statique palpébrale. La connaissance de ces différents plans permet de mieux adapter les voies d'abord chirurgicales et de mieux envisager les repères anatomiques dans la chirurgie des paupières telle le ptosis et la blépharoplastie.

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Copyright information

© Springer-Verlag 1994

Authors and Affiliations

  • DS Brémond-Gignac
    • 1
  • S Deplus
    • 1
  • O Cussenot
    • 1
  • J-P Lassau
    • 1
  1. 1.Laboratoire d'Anatomie de la Faculté de LariboisièreInstitut d'Anatomie de l'UFR, Biomédicale des Saints-PèresParisFrance

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