Bilateral sensorimotor dysfunction in the upper extremities in unilateral cervical radiculopathies: A level-specific...

Area of Science:

• Neurology
• Rehabilitation Medicine
• Orthopedics

Background:

• Cervical radiculopathy (CR) is a neurological condition typically presenting with unilateral symptoms.
• This study investigates the often-overlooked bilateral sensorimotor effects of CR.
• Understanding these effects is crucial for developing targeted rehabilitation strategies.

Purpose of the Study:

• To examine the bilateral sensorimotor dysfunctions in patients with cervical radiculopathy (CR).
• To compare the impact of CR across different nerve root levels (C4-5, C5-6, C6-7).
• To inform comprehensive rehabilitation approaches for CR patients.

Main Methods:

• Recruited 42 patients with CR (C4-5, C5-6, C7) and 16 controls.
• Assessed pain (VAS), neck disability (NDI), upper extremity function (DASH), muscle strength, sensory function, and psychological status (kinesiophobia, anxiety, depression).
• Compared sensorimotor and psychological outcomes between CR groups and controls.

Main Results:

• All CR groups exhibited significant bilateral upper extremity muscle weakness (5-12%) and reduced lateral pinch strength compared to controls.
• Severe sensory deficits were observed, with the C7 group showing the most profound impairment (80% reduction in light touch).
• Kinesiophobia was prevalent, with moderate anxiety and mild depressive symptoms noted in CR patients.

Conclusions:

• Unilateral cervical radiculopathy results in significant bilateral sensorimotor impairments, with functional deficits varying by nerve root level.
• The findings highlight the necessity for bilateral assessments in CR.
• Rehabilitation programs must address both the affected and unaffected limbs to optimize patient outcomes.