Related Experiment Videos
Reliability of two-point discrimination measurements.
A L Dellon1, S E Mackinnon, P M Crosby
1Division of Plastic Surgery, Johns Hopkins University, Baltimore, Md.
The Journal of Hand Surgery
|September 1, 1987
Summary
This study shows high interobserver reliability for two-point discrimination tests in functional hand sensibility assessments. These findings support consistent clinical use of moving and static two-point discrimination measurements.
Area of Science:
- Neurology
- Orthopedics
- Physical Therapy
Background:
- Functional sensibility in the hand is crucial for daily activities.
- Two-point discrimination is a key clinical measure of hand sensibility.
- Assessing interobserver variability is vital for reliable clinical measurements.
Purpose of the Study:
- To investigate the interobserver variability of moving and static two-point discrimination measurements.
- To determine the reliability of standardized two-point discrimination testing procedures.
- To evaluate the consistency of measurements between different observers.
Main Methods:
- Thirty nerve-injured patients were tested using standardized moving and static two-point discrimination protocols.
- Two observers utilized identical testing instruments and endpoint definitions.
- Statistical analysis included linear regression and correlation coefficients.
Main Results:
- High interobserver reliability was observed for both moving (93.3% within 1 mm) and static (86.8% within 1 mm) two-point discrimination.
- Interobserver differences rarely exceeded 2 mm.
- Reliability was statistically significant (p < 0.00001).
Conclusions:
- The employed protocol demonstrates excellent interobserver reliability for two-point discrimination testing.
- Standardized methods ensure consistent and dependable assessment of hand sensibility.
- This enhances the clinical utility of two-point discrimination in evaluating nerve injuries.