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Plantar Plate

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Description

  • Description
    • Stabilizer of the metatarsophalangeal joint
    • Rectangular to trapezoidal fibrocartilaginous structure that firmly attaches onto the base of the proximal phalanx.
    • The plantar plate is 2 to 5 mm thick, 16 to 23 mm long, and 8 to 13 mm wide.
  • Attachments[1]
  • Collagen fibers
    • 75% type 1 collagen and 21% type 2 collagen
    • fibers that course in a longitudinal direction, with oblique bundles interspersed at regular intervals.

Actions

  • Primary stabilizer of the MTP joint in the dorsal-plantar direction
  • Resist tensile loads in the longitudinal direction (particularly in dorsiflexion of the toes)
  • Cushion the joint and support weightbearing forces
  • Collateral ligaments resist varus and valgus stress[2]

Vascular Supply


Innervation


Clinical Significance


See Also


References

  1. Deland JT, Lee KT, Sobel M, DiCarlo EF. Anatomy of the plantar plate and its attachments in the lesser metatarsal phalangeal joint. Foot Ankle Int 1995;16(8):480–486
  2. Deland JT, Sung IH. The medial crossover toe: a cadaveric dissection. Foot Ankle Int 2000;21(5):375–378
Created by:
John Kiel on 31 January 2022 05:19:28
Authors:
Last edited:
31 January 2022 05:42:56
Category: