Mueller-Weiss Syndrome, a Rare Cause of Flatfoot: Case Report.

Introduction: There are numerous causes of flatfoot, among them osteonecrosis of the navicular bone, a rare disease known as Mueller-Weiss syndrome, also leads to deformity.

Case report: A 53-year-old male presented to our Outpatient Department with pain and swelling over bilateral foot for 3 years with increased severity in the left. Physical examination as well as footprint revealed a bilateral flat foot, and there was tenderness as well as swelling over the dorsomedial aspect of bilateral foot. After a detailed physical examination and radiological assessment, the case was diagnosed as Mueller-Weiss syndrome. He was treated with non-steroidal anti-inflammatory drugs, custom ankle-foot orthotic brace for 6 weeks, and activity modification and symptoms were relieved and he was able to do daily activities without any discomfort.

Conclusion: MW syndrome is a rare condition, where conservative treatment provides better results if it is diagnosed and treated early, whereas late cases require surgical intervention.