What is the normal capsular pattern for the midtarsal joint?

• A. Eversion (dorsiflexion, abduction, pronation)
• B. Inversion (plantar flexion, adduction, and supination)
• C. Inversion = Eversion
• D. No change with motion

Answer: (B)

The midtarsal joint’s capsule tends to tighten most when the foot moves into inversion while in a plantarflexed, adducted, and supinated position. This makes inversion with those accompanying motions the primary pattern of limitation. In practical terms, you’ll see the greatest restriction when trying to invert the foot (in a plantarflexed, adducted stance), whereas eversion, dorsiflexion, or abduction are relatively less restricted. So describing the normal capsular pattern as inversion with plantarflexion, adduction, and supination best fits how the joint’s capsule limits motion.