Plantar Plate
(Redirected from Plantar ligament)
Description
Name
- Plantar Plate
- Plantar Ligament
- Volar ligament
- Plantar pad
- Plantar Plate Ligament
- Plantar Fibrocartilaginous Plate
- Volar Plate
- Metatarsophalangeal Plantar Plate
- Plantar Capsular Ligament
General
- Rectangular to trapezoidal fibrocartilaginous structure that firmly attaches onto the base of the proximal phalanx.
- Key purpose is stability of the metatarsophalangeal joint
- The plantar plate is 2 to 5 mm thick, 16 to 23 mm long, and 8 to 13 mm wide.
Attachments[3]
- Distal fibers of the plantar fascia
- Paired accessory collateral ligaments
- Deep transverse intermetatarsal ligament,
- Interosseous tendons
- Fibrous sheath of the flexor digitorum longus, flexor digitorum brevis tendons
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[4]
Vascular Supply
- Branches from the metatarsal pedicle and plantar fascia[5]
Innervation
- Branches of[6]
Clinical Significance
See Also
References
- ↑ Image courtesy of ankleandfootcentre.com.au
- ↑ Image courtesy of https://www.sportsinjurybulletin.com/
- ↑ 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
- ↑ Deland JT, Sung IH. The medial crossover toe: a cadaveric dissection. Foot Ankle Int 2000;21(5):375–378
- ↑ Park, Jiwon V., et al. "Proximal plantar plate of lesser toe metatarsophalangeal joint vascular supply." Foot & ankle international 44.1 (2023): 75-80.
- ↑ Strand, Natalie, et al. "Evidence-based clinical guidelines from the American Society of Pain and Neuroscience for the use of implantable peripheral nerve stimulation in the treatment of chronic pain." Journal of pain research (2022): 2483-2504.