Activity Loss and Retention Patterns Following Unilateral Peripheral Nerve Injury: Implications for Rehabilitation

Area of Science:

• Neuroscience
• Rehabilitation Medicine
• Occupational Therapy

Background:

• Peripheral nerve injury (PNI) in the upper extremity significantly impairs patients' ability to participate in daily activities.
• Current assessment tools for PNI's impact on participation are limited.
• Understanding the influence of motor demands on activity retention is crucial for rehabilitation.

Purpose of the Study:

• To investigate the impact of PNI on upper extremity activity participation based on motor demands (fine motor, gross motor, bimanual).
• To test hypotheses regarding activity retention, hand dexterity correlation, and unimanual vs. bimanual activity performance.
• To identify patient factors associated with participation deficits after PNI.

Main Methods:

• Cross-sectional observational study conducted in two upper extremity rehabilitation clinics.
• Involved 48 patients with unilateral upper extremity PNI.
• Assessed participation retention rates across five activity dimensions using the Activity Card Sort.

Main Results:

• Participants retained fewer gross motor activities compared to fine motor activities.
• Pain and health-related quality of life were significantly associated with participation.
• Hand dexterity did not correlate with fine motor activity retention; unimanual activities were retained better than bimanual activities.

Conclusions:

• Activity loss post-PNI is influenced by factors beyond motor demands, including personal and contextual elements.
• While motor skills are important, rehabilitation must address compensation strategies and difficulties with bimanual tasks.
• Activity-based assessments are vital for tailoring interventions to individual patient needs and real-world challenges.