FEATURES TO LOOK FOR
• Hallux Valgus Angle & Intermetatarsal Angle
• 1st Metatarsal rotation (lateralised sesamoid on xray or measure on CT)
• Sesamoid subluxation
• Metatarsal adduction
• Cartilage damage
Hallux rigidus is a unique condition and not simply a type of osteoarthritis.
It generally occurs in middle aged runners, or other sports that involve chronic hyperextension.
Most likely it is a chronic overuse injury related to hyperextension.
The imaging features are:
• an irregular narrowed joint on the frontal radiograph and
• a large dorsal osteophyte visible on the lateral.
Excision of the osteophytes can improve symptoms.
