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Bilateral isolated tarsal navicular fracture dislocation: a case report.
N Yoshino1, M Noguchi, S Yamamura
1Department of Orthopaedic Surgery, Kyoto Prefectural University of Medicine, Japan.
Journal of Orthopaedic Trauma
|January 9, 2001
Summary
Bilateral isolated tarsal navicular fracture-dislocations are rare. Surgical treatment was successful for daily activities, but imaging suggested potential osteonecrosis two years post-operation.
Area of Science:
- Orthopedic surgery
- Traumatology
- Foot and ankle anatomy
Background:
- Fracture-dislocation of the tarsal navicular is an uncommon injury due to robust plantar and dorsal ligamentous support.
- This case highlights a rare instance of bilateral, isolated tarsal navicular fracture-dislocations.
Observation:
- A 25-year-old male patient presented with bilateral isolated tarsal navicular fracture-dislocations.
- The injury was managed surgically using open reduction and internal fixation, augmented with external fixation.
Findings:
- Post-operatively, the patient experienced no limitations in daily living activities.
- Follow-up T1-weighted MRI revealed a low-intensity area in the right tarsal navicular, indicating suspected osteonecrosis 2 years and 3 months after surgery.
Implications:
- This case underscores the importance of long-term imaging surveillance for suspected osteonecrosis after tarsal navicular fracture-dislocation.
- The findings suggest that despite successful initial fixation, avascular changes may develop in the tarsal navicular bone.
- Further research is warranted to understand the long-term outcomes and management strategies for such injuries.