Aquired Adult Flatfoot Deformity

Definition

 

Acquired Adult Flatfoot Deformity (AAFD)

- collapse of medial longitudinal arch

- secondary to ligament / tendon / joint or bony pathology

 

Classification

 

1. Congenital

 

Flexible Rigid

Familial

Ligamentous laxity

Congenital vertical talus

Tarsal Coalition

 

2.  Acquired

 

Tibialis posterior dysfunction Rheumatoid arthritis Neurological Osteoarthritis / previous fracture Ligament injury
 

50% will get flat foot

- subtalar OA

- spring ligament attenuation

- tibialis post dysfunction

- progressive hind foot valgus 

Charcot foot

Cerebral palsy

Polio

Subtalar OA

Calcaneal fracture

Midfoot OA

Lis franc fracture

Isolated spring ligament rupture

Plantar fascia rupture

         

 

RA

Planovalgus secondary to rheumatoid arthritis

 

charcot

Planovalgus secondary to Charcot

 

Midfoot OA

Planovalgus secondary to midfoot OA

 

Midfoot AP Secondary to Missed Lis Franc

Planovalgus secondary to Lis franc