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Summary
Kienbock's disease, or lunate malacia, involves avascular necrosis of the lunate bone, causing wrist pain. Treatment varies by stage, aiming to relieve pressure for revascularization or manage advanced disintegration with surgery.
Area of Science:
- Orthopedics
- Hand Surgery
- Radiology
Background:
- Kienbock's disease (lunate malacia) is a condition characterized by avascular necrosis and disintegration of the lunate bone.
- Despite decades of study, the exact cause of Kienbock's disease remains debated, with theories often involving stress fractures and vascular supply issues.
Purpose of the Study:
- To review the current understanding of Kienbock's disease, including its etiology, classification, and treatment options.
- To provide a comprehensive overview of diagnostic criteria and therapeutic strategies for managing lunate malacia.
Main Methods:
- Review of existing literature on Kienbock's disease.
- Analysis of roentgenologic classification systems for staging the disease.
- Categorization of treatment modalities based on disease stage.
Main Results:
- Kienbock's disease progresses through five radiographic stages, from initial fracture lines to advanced osteoarthritis.
- Treatment strategies are divided into those promoting revascularization (e.g., ulnar lengthening, radial shortening) for early stages and surgical interventions (e.g., lunate excision, arthrodesis) for advanced stages.
Conclusions:
- Effective management of Kienbock's disease requires accurate staging based on radiographic findings.
- Treatment choice depends on the stage of lunate malacia, with options ranging from conservative measures to complex surgical reconstructions.