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Abstract #15323 Published in IGR 1-3
An orthopaedic scoring system for nail-patella syndrome and application to a kindred with variable expressivity and glaucoma
Farley FA; Lichter PR; Downs CA; McIntosh I; Vollrath D; Richards JEJournal of Pediatric Orthopedics 1999; 19: 624-631
To help determine whether there is a genetic basis to the substantial variability observed in nail-patella syndrome (NPS), the authors devised a scoring system that quantifies the severity of the orthopaedic characteristics in NPS. Use of this system to score affected members in three generations of a single kindred revealed wide variability of severity of orthopaedic findings both within and between generations. Genetic testing in this family supported, but did not prove, a previously reported theory that the severity of the NPS in the offspring is modulated by the allele contributed by the unaffected parent. Evaluation of nonorthopedic characteristics revealed the presence of glaucoma and the absence of kidney disease in this family. It is important that patients with NPS be evaluated for renal disease and glaucoma.
Dr. F.A. Farley, Section of Orthopaedic Surgery, University of Michigan, University Hospitals, Ann Arbor, MI 48109-0328; USA
Classification:
1.2 Population genetics (Part of: 1 General aspects)
