Treating A Patient With A Neglected Calcaneal Fracture And Severe Rearfoot Varus
- Volume 26 - Issue 6 - June 2013
- 4581 reads
- 1 comments
These authors discuss keys to the diagnosis and treatment of a neglected calcaneal fracture in a 25-year-old patient who had suffered a traumatic fall when he was 18.
An 18-year-old male suffered a severe injury to his left lower extremity after falling from a height of approximately 15 feet. The patient suffered polytrauma including ankle, talar and calcaneal fractures. Surgeons performed immediate open reduction with internal fixation for a severe depressed talar body fracture and an isolated, displaced medial malleolus fracture. The surgeons did not address the calcaneal fracture at that time.
Approximately six years after the initial injury, the patient sought treatment for progressively increasing pain to his hindfoot. Since the initial injury, he saw multiple foot and ankle specialists and received stirrup ankle braces, ankle/foot orthotics, anti-inflammatory medication, and other pain relievers. All modalities proved to be unsuccessful and poorly tolerated, and continued pain resulted in the patient being treated by a pain management specialist.
Seven years after the initial injury, the patient presented to our office for surgical consultation.
What The Diagnostic Workup Revealed
Visually, the patient had a gross varus deformity, cavus foot architecture and well-healed surgical scars to the left ankle area. He had pain with palpation in the sinus tarsi area. Range of motion of the subtalar joint elicited pain and crepitus. The patient had pain-free range of motion in the ankle joint but limited dorsiflexion. A Silfverskiold test revealed a mild gastroc soleus equinus.
We performed a Coleman test, which was developed to evaluate the driving force of the cavus foot.1 Offloading the medial column and evaluating the posterior heel determines the reducibility and root cause of the cavus foot. If the rearfoot reduces, the cavus deformity is driven by the plantarflexed first ray. If the rearfoot remains in varus position, the deformity is rearfoot-driven and rigid.
The Coleman block test in this patient revealed a rearfoot-driven deformity and a rigid cavus foot.
Preoperatively, we obtained extensive radiographs and advanced imaging including a full foot and ankle series, hindfoot axial and long leg axial views. Moreover, we obtained a computed tomography (CT) scan to check for possible talar avascular necrosis, ascertain bone quality and evaluate the retained prior hardware.
Overall, the radiographic analysis indicated a global cavus structure with severe osteoarthritis of the subtalar joint and a depressed posterior facet. The subtalar joint was collapsed and in a varus alignment. The patient also had an abnormal Meary’s angle. The CT scan was negative for avascular necrosis and there was no failure of the retained hardware. The CT scan also confirmed severe degenerative changes at the subtalar joint.