From: Surgical fasciectomy of the trapezius muscle combined with neurolysis of the Spinal accessory nerve; results and long-term follow-up in 30 consecutive cases of refractory chronic whiplash syndrome
Symptom
Before
After
p
Pain
9.5 ± 0.9
3.2 ± 2.6
< 0.001
Headache
8.2 ± 2.9
2.3 ± 2.8
Insomnia
7.5 ± 2.4
3.8 ± 2.8
Weakness
7.6 ± 2.6
3.6 ± 2.8
Stiffness
7.0 ± 3.2
2.6 ± 2.7