Table 1.
Neurologic disease | Dysplasia related to neurologic disease | Osteoarthritis not related to neurologic disease | Fracture | Osteonecrosis | ||||
---|---|---|---|---|---|---|---|---|
UL | CL | UL | CL | UL | CL | UL | CL | |
Decreased muscle tone | ||||||||
Poliomyelitis (n = 12) | 5 | 7 | ||||||
Down syndrome (n = 6) | 2 | 4 | ||||||
Myelomeningocele (n = 5) | 2 | 3 | ||||||
Increased muscle tone | ||||||||
Cerebral palsy (n = 4) | 2 | 2 | ||||||
Parkinson’s (n = 42) | 7 | 15 | 8 | 12 | ||||
Syringomyelia (n = 6) | 2 | 4 | ||||||
Stroke (n = 40) | 18 | 22 | ||||||
Cognitively impaired | ||||||||
Dementia (n = 111) | 26 | 31 | 30 | 46 | ||||
Confusion (n = 17) | 3 | 4 | 5 | 4 | ||||
Psychosis (n = 21) | 5 | 3 | 4 | 4 | 5 |
* There were 164 constrained liners (CL) and 132 unconstrained liners (UL); some patients have bilateral arthroplasties.