Abstract
Proximal fourth metatarsal injuries are rarely reported. We present five case histories in which athletic patients sustained injuries at the shaft-base junction of the fourth metatarsal. Similar to proximal fifth metatarsal injuries, adduction of the forefoot appears to be associated. Our patients returned to their activities in two to eight months.
These patients injuries tended to take longer to heal than other lesser metatarsal fractures and stress fractures (which are typically more distal). Some patients were continually symptomatic, even after three months of rest and immobilization. This coincides with proximal fifth metatarsal injuries and stress fractures.
For treatment of proximal fourth metatarsal injuries to be successful, ideal treatment appears to involve nonweightbearing below-knee cast/boot immobilization for three weeks. This is followed by an additional three or more weeks of weightbearing immobilization. Healing may still be prolonged.
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