Figure 4From: Tandem keyhole foraminotomy in the treatment of cervical radiculopathy: retrospective review of 35 casesGrip strength (kg) of pre- and post-operation shown in symptomatic and non-symptomatic side. *P < 0.01: pre-nonsymptomatic vs pre-symptomatic. **P < 0.01: post-nonsymptomatic vs post-symptomatic. ***P < 0.01: pre-symptomatic and post-symptomatic.Back to article page