Long-term outcomes for Kienböck's disease

Area of Science:

• Orthopedics
• Hand Surgery
• Rheumatology

Background:

• The exact cause of Kienböck's disease remains unknown.
• Optimal treatment strategies for Kienböck's disease are debated.
• This study evaluated surgical versus nonsurgical outcomes in Newfoundland and Labrador, Canada.

Purpose of the Study:

• To compare the effectiveness of surgical and nonsurgical treatments for Kienböck's disease.
• To investigate factors influencing treatment outcomes, including age at diagnosis and disease duration.
• To provide data for clinical decision-making in Kienböck's disease management.

Main Methods:

• Retrospective analysis of 66 patients diagnosed with Kienböck's disease.
• Primary outcome measure: Disabilities of the Arm, Shoulder, and Hand (DASH) score.
• Statistical analysis included Student's t test, ANOVA, and Pearson correlation.

Main Results:

• No significant difference in DASH scores between surgically (23.7±24.5) and nonsurgically (20.0±20.1) treated patients.
• Surgical group predominantly consisted of late-stage Kienböck's disease.
• A positive correlation (r=0.42, p=0.007) was observed between age at diagnosis and DASH score, indicating poorer outcomes with later diagnosis.

Conclusions:

• Surgical and nonsurgical treatments yield similar functional outcomes (DASH scores) for Kienböck's disease.
• Older age at diagnosis is associated with worse functional outcomes, irrespective of treatment.
• These findings suggest that timely diagnosis and intervention may be crucial for improving patient prognosis.