Page 37 - 5. RHEUMATOID ARTHRITIS
P. 37

Feet







          ▪       The forefoot is involved in 90% of patients


                  - hallux valgus, with hammering of the lesser toes.



          ▪       The midfoot is not usually symptomatically involved




          ▪       The hindfoot - progressive valgus deformity due to


                  involvement of the subtalar or talo-navicular joint or

                  both.  This is followed by loss of the medial longitudinal

                  arch and flatfoot deformity with forefoot pronation.



          ▪       There is a higher rate of tibialis posterior dysfunction,


                  which may be due to direct tendon invasion or strain

                  from a valgus hindfoot.
   32   33   34   35   36   37   38   39   40   41   42