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Dorsal tarsometatarsal ligaments

The dorsal tarsometatarsal ligaments are a series of fibrous bands that connect the dorsal surfaces of the tarsal bones (cuneiforms and cuboid) to the bases of the metatarsal bones. They form the dorsal reinforcement of the tarsometatarsal (Lisfranc) joints, maintaining the structural stability and alignment of the midfoot.

These ligaments are thinner and less robust than their plantar counterparts but play an essential role in stabilizing the dorsal aspect of the Lisfranc joint complex and resisting excessive dorsiflexion or shear stress across the midfoot during gait.

Injury to these ligaments, particularly as part of a Lisfranc sprain or fracture-dislocation, can result in instability, deformity, and chronic midfoot pain if not properly diagnosed and managed.

Synonyms

  • Dorsal Lisfranc ligaments

  • Dorsal interosseous tarsometatarsal ligaments

  • Dorsal cuneometatarsal and cuboid-metatarsal ligaments

Origin and Insertion

  • Origin: Dorsal surfaces of the medial, intermediate, and lateral cuneiforms, and the cuboid bone

  • Insertion: Dorsal bases of the first through fifth metatarsals
    Each ligament runs obliquely forward and laterally, binding the tarsal and metatarsal bones together across the dorsum of the foot.

Course and Attachments

  • The first dorsal tarsometatarsal ligament extends from the medial cuneiform to the base of the first metatarsal.

  • The second and third ligaments connect the intermediate and lateral cuneiforms to the bases of the second and third metatarsals.

  • The fourth and fifth ligaments arise from the cuboid bone and insert onto the bases of the fourth and fifth metatarsals.
    Together, they create a continuous dorsal ligamentous network overlying the tarsometatarsal joints.

Relations

  • Superficial: Dorsalis pedis artery and dorsal digital branches of the deep fibular nerve

  • Deep: Tarsometatarsal joint capsules and interosseous ligaments

  • Medially: Medial cuneiform and base of the first metatarsal

  • Laterally: Cuboid and base of the fifth metatarsal

  • Inferiorly: Plantar tarsometatarsal ligaments (stronger and thicker counterparts)

Nerve Supply

  • Deep fibular (peroneal) nerve and its dorsal digital branches provide articular innervation

Function

  • Joint stabilization: Maintains alignment of the tarsometatarsal (Lisfranc) joint complex

  • Dorsal reinforcement: Prevents excessive dorsal translation of metatarsal bases

  • Load distribution: Assists in transmitting forces between forefoot and midfoot during gait

  • Protection: Guards dorsal neurovascular structures crossing the tarsometatarsal region

Clinical Significance

  • Injury (Lisfranc sprain): Commonly results from twisting or axial load on a plantarflexed foot

  • Associated fractures: May involve base of second metatarsal or medial cuneiform

  • Symptoms: Midfoot pain, swelling, dorsal tenderness, and inability to bear weight

  • Chronic instability: Leads to arch collapse and degenerative arthritis if untreated

  • Imaging role: MRI and CT essential for detecting ligament tears, avulsion fractures, and alignment changes

MRI Appearance

  • T1-weighted images:

    • Normal ligaments appear as thin, low-signal (dark) linear bands across the dorsal aspect of the tarsometatarsal joints

    • Fat planes around ligaments appear bright, aiding contrast

    • Partial tears or sprains show ill-defined, thickened intermediate signal

  • T2-weighted images:

    • Normal ligaments: low signal intensity, slightly darker than surrounding muscle

    • Tears: bright linear or focal hyperintensity within the ligament

    • Avulsion injuries show discontinuity or adjacent marrow edema in metatarsal bases

  • STIR:

    • Normal ligaments: dark

    • Pathology: hyperintense edema and fluid signal at ligament attachment or joint space

    • Particularly sensitive to subtle Lisfranc sprains or partial disruptions

  • Proton Density Fat-Saturated (PD FS):

    • Normal: thin, sharply defined dark bands

    • Tears: bright irregular signal, thickened ligament, or complete fiber disruption

    • Excellent for evaluating partial-thickness injuries and periligamentous edema

  • T1 Fat-Sat Post-Contrast:

    • Normal: minimal or no enhancement

    • Ligamentous inflammation or repair tissue shows contrast enhancement

    • Enhancing soft tissue in the dorsal midfoot may indicate post-traumatic synovitis or granulation tissue

CT Appearance

Non-Contrast CT:

  • Ligaments appear as thin soft-tissue densities crossing between tarsal and metatarsal bases

  • Indirect findings: joint widening, step-offs, or small avulsion fragments from metatarsal bases or cuneiforms

  • Useful for detecting Lisfranc fracture-dislocation patterns

Post-Contrast CT (standard):

  • Ligaments remain low density; contrast outlines adjacent joint spaces

  • Soft-tissue swelling and post-traumatic changes may be more conspicuous

  • Helpful for pre-surgical planning of tarsometatarsal reconstruction or fixation

MRI image

Dorsal tarsometatarsal ligaments SAGITTAL cross sectional anatomy 3T MRI AI enhanced radiology image-img-00000-00000

MRI image

Dorsal tarsometatarsal ligaments SAGITTAL cross sectional anatomy 3T MRI AI enhanced radiology image-img-00000-00000_00001

MRI image

Dorsal tarsometatarsal ligaments SAGITTAL cross sectional anatomy 3T MRI AI enhanced radiology image-img-00000-00000_00002