Cock-up Fifth Toe M20.5X9

synonyms: cock-up toe

Cock-up Toe ICD-10

• M20.5X1 - Other deformities of toe(s) (acquired), right foot
• M20.5X2 - Other deformities of toe(s) (acquired), left foot
• M20.5X9 - Other deformities of toe(s) (acquired), unspecified foot

Cock-up Fifth Toe ICD-9

Cock-up Fifth Toe Etiology / Epidemiology / Natural History

• Severe dorsiflexion deformity at the fifth metatarsophalangeal joint. May have a hammer-toe component.

Cock-up Fifth Toe Anatomy

Cock-up Fifth Toe Clinical Evaluation

Cock-up Fifth Toe Diagnositc Tests

Cock-up Fifth Toe Classification / Treatment

• Non-operative treatment: wide or extra-depth shoes.
• Mild deformity: release of the soft tissues at the metatarsophalangeal joint, extensor tenotomy, consider a hammertoe procedure.
• Severe fixed deformity: excision of all or part of the proximal phalanx (Ruiz-Mora procedure).

Cock-up Fifth Toe Associated Injuries / Differential Diagnosis

• Claw toe
• Monoarticular nontraumatic synovitis
• Metatarsophalangeal joint instability
• Plantar Keratosis
• Frieberg's Infraction

Cock-up Fifth Toe Complications

• Pain
• Bunionette deformity
• Fourth toe hammer toe
• Floppy fifth toe

Cock-up Fifth Toe Follow-up Care

Cock-up Fifth Toe Review References

Mizel MS JAAOS 1995;3:166