title: [The differences between left & right side development of osteophiphysis in estimating male juvenile age].
abstract: OBJECTIVE
  The influence on age estimation by comparing the differences between left and right side development of osteophiphysis.
  
  
  METHODS
  27 osteophiphysis development indexes in the X-ray films of 6 major joints and pelvises in 130 male juveniles were observed. The positions and levels of difference between left and right side development of osteophiphysis were compared. The male juvenile age by regression equation according to left side and right side were estimated respectively.
  
  
  RESULTS
  In 76 cases, the age estimation results are the same for both sides. In 47 cases, the difference between left and right side is less than 6 months. In 7 cases, the difference is between 6 and 12 months. The error of 94.6% age estimation is within 6 months. The differences between left and right osteophiphysis development are often found in proximal humerus, distal radius, distal ulna and crista iliaca.
  
  
  CONCLUSIONS
  The subtle difference between left and right osteophiphysis development has no influence on age estimation.
mesh_terms: D000293:Adolescent; D000365:Age Determination by Skeleton / Q000379:methods*; D005554:Forensic Medicine; D006801:Humans; D006811:Humerus / Q000000981:diagnostic imaging; D008297:Male; D010012:Osteogenesis; D011884:Radius / Q000000981:diagnostic imaging*; D013977:Tibia / Q000000981:diagnostic imaging*