Table 3.
Preoperative and postoperative outcomes: clinical findings, metrics
| Patient | Presenting symptoms and signs | Postop. symptomatic improvement | SCOSIA stress forces (N/cm2) preop./ postop. | Pain (×/100) preop./ postop. | Brainstem disability index preop. / postop. | ASIA preop. / postop. | Karnofsky Preop. / Postop. | SF-36 Preop. / Postop. | ||
|---|---|---|---|---|---|---|---|---|---|---|
| #1 |
|
- Resolution of neck pain and HA, resp. abnormalities | 70/26 70/6 70/33 | 70/0 | 80%/0 | M-90/M-100 P-112/P-112 Lt-112/Lt-112 | 50%/100% | Phys: 31/69.1 Mental: 22.9/65.2 | ||
| - Improvement in strength, coordination | ||||||||||
| - No change in anhydrosis | ||||||||||
| #2 | Tongue thrusting, myoclonic spasms, paresthesias weakness, tics, anisocoria, absent gag reflex, hemi-hypoesthesia, Babinski | Resolution of tongue thrusting, tics, myoclonic spasms, strength and sensory deficit | 60/13 60/13 46/33 | 90/60 | 55%/5% | M-80/M-100 P-84/P-112 U-84/P-112 | 50%/l 00% | Phys: 43/47.6 Mental: 37.3/46.8 | ||
| Schizotypal disorder | ||||||||||
| #3 | Hyperactive, sleep apnea, HA, weakness imbalance, incoordination, urinary freq. hand flapping | - Resolution of hyperactivity, normal strength, coordination, balance, urinary urgency and hand flapping paresthesias | 26/6 33/6 60/20 | 55/0 | 55%/0 | M-93/M-100 P-112/P-112 Lt-112/Lt-112 | 85%/100% | Phys: 43.5/60.4 Mental: 47.3/57.2 | ||
| Hypoesthesia Hyper-reflexia, Babinski | - Improved hypopnea, reflexes | |||||||||
| ADHD | ||||||||||
| #4 | Chronic HA, emesis, dysphagia | Resolution of scoliosis, emesis, | 33/13 40/13 26/26 | 70/0 | 55%/0 | M-100/M-100 P-75/P-75 Lt-75/Lt-75 | 80%/100% | Phys: 37.2/59.5 Mental: 30.5/58.5 | ||
| Scoliosis, paresthesia, abnormal gait | Improved gait, and dysphagia. | |||||||||
| Cat-eye syndrome | Recurrence HA at 6 months. Repeat suboccip craniectomy | |||||||||
| #5 | Emesis, dysphagia ataxia, freq. falls, vertigo, chronic neck and back pain, sleep walking, hyperactivity, | Resolution of HA, back pain, sleep walking, emesis, dysphagia and vertigo. | 33/13 60/13 40/20 | 35/0 | 40%/10% | M-100/M-100 P-56/P-112 Lt-56/Lt-l 12 | 80%/100% | Phys: 43.7/46 Mental: 53.5/55.4 | ||
| Paresthesias, UE, fatigue, hyper-reflexia | Normalization of sensation, strength, coordination, socialization | |||||||||
| Asperger’s syndrome | No fatigue |
*The preoperative and postoperative predicted stress analyses given in N/cm2 represent the Von Mises stress (the aggregate of stress and strain in all axes, resulting from stretch and deformation). The Von Mises stresses are shown for the corticospinal tract, the dorsal columns and the nucleus solitarius/ dorsal motor nucleus, respectively. Only the maximum stress for each tract is listed.