101. What happens to the patella height in patients with cerebral palsy as they age
- Author
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Chin Youb Chung, Kyoung Min Lee, Jae Jung Min, Soon Sun Kwon, Hansang Lee, Moon Seok Park, and Ki Hyuk Sung
- Subjects
medicine.medical_specialty ,business.industry ,Cerebral Palsy ,Retrospective cohort study ,Gross Motor Function Classification System ,Patella ,medicine.disease ,Cerebral palsy ,Radiography ,Child, Preschool ,Reference values ,Internal medicine ,Pediatrics, Perinatology and Child Health ,medicine ,Humans ,Orthopedics and Sports Medicine ,In patient ,Bone Diseases ,business ,Retrospective Studies - Abstract
OBJECTIVE We aimed to investigate the progression of patella alta (PA) in patients with cerebral palsy (CP) using the Koshino-Sugimoto (KS) index and assess associated risk factors. METHOD Participants in our retrospective study met the following inclusion criteria: patients with CP who visited our institute from May 2003 to December 2019, were ≤18 years of age, were followed up for >2 years and had at least two lateral knee radiographs. KS indices of both knee radiographs were measured for each patient. A linear mixed model was implemented. RESULTS Our participants included 222 CP patients. KS index values were measured via 652 knee radiographs. Reference values of the KS index for those between 4 and 18 years of age were determined according to Gross Motor Function Classification System (GMFCS) levels. In all GMFCS levels, the KS index decreased with patients' ages (P < 0.0001). In groups where the KS index increased, GMFCS levels IV (P = 0.0045) and V (P = 0.0040) were statistically significant. CONCLUSIONS Change in the KS index values indicates that PA improves as patients age within all GMFCS levels. However, in patients with GMFCS levels of IV and V, progressive PA is expected.
- Published
- 2021