Table 3. Results of Diagnostic Investigation and Surgical Treatment.
| Patient | Sex/age (yr) | Symptom duration (mo) | Tender piriformis | Provocation test | Spine CT/MRI | Previous spine treatment | CT/MRI of hip | VAS score (preop/postop/12 mo) | Surgical method |
|---|---|---|---|---|---|---|---|---|---|
| 1 | F/63 | 12 | + | + | L4-5 spinal stenosis | T/L & flavectomy | NS | 9/2/2 | R |
| 2 | F/45 | 6 | + | + | No pathology | - | Perineural vessels engorged | 10/4/1 | R + B + N |
| 3 | M/68 | 4 | + | + | L3-5 spinal stenosis | T/L & foraminectomy | NS | 10/8/7 | R + B |
| 4 | F/70 | 8 | − | + | L3-5 spinal stenosis | Spinal block | NS | 8/3/3 | R |
| 5 | F/71 | 48 | + | − | L4-S1 spinal stenosis | Spinal block | Hyperintensity | 9/1/2 | R |
| 6 | M/68 | 24 | + | − | No pathology | - | Asymmetry | 7/4/2 | R |
| 7 | F/67 | 10 | + | − | L3-5 spinal stenosis | Spinal block | NS | 9/6/7 | R |
| 8 | F/63 | 5 | + | − | L4-5 HNP | Microscopic discectomy | NS | 10/4/3 | R |
| 9 | M/58 | 12 | + | + | L3-S1 spinal stenosis | Spinal block | Asymmetry | 9/7/3 | R + B |
| 10 | F/58 | 4 | − | + | L5-S1 spinal stenosis | Spinal block | Hyperintensity | 10/3/2 | R + N |
| 11 | M/54 | 72 | + | − | No pathology | - | NS | 9/2/2 | R |
| 12 | F/47 | 60 | + | + | No pathology | - | NS | 8/4/3 | R |
CT: computed tomography, MRI: magnetic resonance imaging, VAS: visual analog scale, T/L: total laminectomy, NS: nonspecific, R: resection of piriformis muscle, B: trochanteric bursectomy, N: sciatic nerve neurolysis, HNP: herniation of the nucleus pulposus.