Description: A tarsal coalition happens when two tarsal bones, (the calcaneus and talus or the calcaneus and novicular) bind together. The most common cause is congenital but arthritis, infection or injury can create the same condition. It limits motion and causes pain maybe years later. It is suspected when it hurts to walk or stand, there are muscle spasms, limping, flatfoot (in one or both feet) or stiffness of the foot or ankle. It is difficult to diagnose until adulthood but it can be seen early on advanced imaging techniques such as MRI.

Treatment: Most non-surgical treatments will alleviate the pain and restore mobility provided the condition is diagnosed in time. These include ice packs, anti-inflammatory drugs, steroid injections, orthotic devices and immobilisation in a ‘air boot’ with crutches to relieve pressure on the foot. Surgery is a last resort and the best approach is dependent upon the patient’s age, health and other factors.