Simple Grading for Motor Function in Spastic Arm Paralysis: Hua-Shan Grading of Upper Extremity

Area of Science:

• Neurosurgery
• Rehabilitation Medicine
• Neurology

Background:

• Spastic arm paralysis following central neurological injury significantly impacts patient quality of life.
• Effective neurosurgical treatments exist, necessitating standardized clinical standards for motor function assessment.
• Current grading systems may lack the conciseness and specificity required for optimal neurosurgical management.

Purpose of the Study:

• To develop and validate a unified, concise clinical standard for grading upper extremity motor function in patients with spastic hemiplegia.
• To introduce the Hua-Shan Grading (H-S grading) system as a tool for neurosurgical treatment and management.
• To evaluate the reliability and validity of the H-S grading system compared to existing scales.

Main Methods:

• Retrospective analysis of 51 hemiplegic patients' data from Huashan Hospital.
• Collaborative design of the H-S grading system by neurosurgeons and rehabilitation experts.
• Prospective validation using 64 patients with unilateral spastic arm paralysis, comparing H-S grading with Fugl-Meyer Assessment and Ashworth scale.

Main Results:

• The H-S grading system was developed, proving feasible and concise for clinical application, typically taking 3-5 minutes.
• A strong correlation was observed between H-S grading and Fugl-Meyer scores (r=0.937, P < .01), with significant differences between grading levels (P < .05).
• The H-S grading demonstrated good test-retest reliability, validity, and superior sensitivity to motor function changes compared to the Ashworth scale.

Conclusions:

• The Hua-Shan Grading (H-S grading) system offers a standardized and simplified approach for assessing chronic-stage spastic hemiplegia.
• It serves as a valuable supplement to classic scales in the neurosurgical treatment of spastic hemiplegia.
• The H-S grading system facilitates more precise motor function evaluation, aiding clinical decision-making and patient management.