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Table 4 Clinical findings of symptomatic spinal stenosis in adults with achondroplasia (n = 34)

From: High prevalence of symptomatic spinal stenosis in Norwegian adults with achondroplasia: a population-based study

Characteristics  
Surgery for spinal stenosis, yes, n (%) 28 (82.4)
Median age at first surgery, years (range) 38.5 (10–70)
Mean time to first surgery, years (range) a 9.2 (0.3–35)
Thoracolumbar kyphosis, n (%) 7 (20.6)
Abnormal neurological findings b N (%)
Tendon reflexes Upper extremities 0 (0)
  Lower extremities 20 (58.8)
Sensation Upper extremities 10 (29.4)
  Lower extremities 15 (44.1)
Muscle strength Upper extremities 1 (2.9)
  Lower extremities 7 (20.6)
Urinary incontinence c 14 (41.2)
Bowel incontinence c 7 (20.6)
  1. a Time from symptom onset to first surgery
  2. b Abnormal neurological findings defined as:
  3. Reflexes: 0, 3+ or clonus
  4. Sensation: 0 or 1
  5. Muscle strength: 0–3
  6. c As reported by participants