Purpose: To evaluate a modified intrafocal pinning technique with cast immobilization for the treatment of unstable distal radius fractures in the elderly. Methods: Fifty-nine (41 female and 18 male) patients over the age of 55 years (average age 66.5 years) were treated for an unstable distal radial fracture by a modified technique that uses a transradial styloid pin and combined one or two intrafocal dorsal buttress pins. The patients were immobilized for 6 weeks postoperatively. Results: At a mean follow-up of 18 months, all patients made a satisfactory functional recovery result was good or excellent. The average grip strength was 82% of the normal side. There were no case of nerve injury, deep wound infection, tendon rupture or reflex sympathetic dystrophy. Conclusion: The combined transradial styloid pinning and intrafocal pinning technique is a simple, safe and effective alternative for the treatment of unstable fracture of distal radius in the older patients.