title: Analysis of radiographic bone parameters throughout the surgical lengthening and deformity correction of extremities.
abstract: BACKGROUND
  Radiographic examination of extremities in surgical lengthening and/or correction of deformities is of crucial importance for the assessment of new bone formation. The purpose of this study is to confirm the diagnostic value of radiography in precise detection of bone parameters in various lengthening or correction stages in patients treated by limb-lengthening and deformity correction.
  
  
  METHODS
  50 patients were treated by the Ilizarov method of limb lengthening or deformity correction at the University Orthopaedic Surgery Clinic in Skopje, and analysed over the period from 2006 to 2012. The patients were divided into two groups. The first group consisted of 27 patients with limb-lengthening because of congenital shortening. The second group consisted of 23 patients treated for acquired limb deformities. The results in both groups were received in three stages of new bone formation and were based on the appearance of 3 radiographic parameters at the distraction/compression site.
  
  
  RESULTS
  The differences between the presence of all radiographic bone parameters in different stages of new bone formation were statistically signficant in both groups, especially the presence of the cortical margin in the first group (Cochran Q=34.43, df=2, p=0.00000). The comparative analysis between the two groups showed a statistically significant difference in the presence of initial bone elements and cystic formations only in the first stage.
  
  
  CONCLUSIONS
  Almost no statistical significance in the differences between both groups of patients with regard to 3 radiographic parameters in 3 stages of new bone formation, indicates a minor influence of the etiopathogenetic background on the new bone formation in patients treated by gradual lengthening or correction of limb deformities.
authors.affiliation: University Orthopaedic Surgery Clinic, Medical Faculty, Ss. Cyril and Methodius University, Skopje, R. Macedonia.
authors.forename: Nenad
authors.initials: N
authors.lastname: Atanasov
authors.affiliation: University Orthopaedic Surgery Clinic, Medical Faculty, Ss. Cyril and Methodius University, Skopje, R. Macedonia.
authors.forename: Anastasika
authors.initials: A
authors.lastname: Poposka
authors.affiliation: University Orthopaedic Surgery Clinic, Medical Faculty, Ss. Cyril and Methodius University, Skopje, R. Macedonia.
authors.forename: Milan
authors.initials: M
authors.lastname: Samardziski
authors.affiliation: University Orthopaedic Surgery Clinic, Medical Faculty, Ss. Cyril and Methodius University, Skopje, R. Macedonia.
authors.forename: Viktor
authors.initials: V
authors.lastname: Kamnar
mesh_terms: D000293:Adolescent; D000328:Adult; D001861:Bone Regeneration; D005260:Female; D006801:Humans; D018889:Ilizarov Technique; D017880:Limb Deformities, Congenital / Q000000981:diagnostic imaging* / Q000601:surgery*; D008297:Male; D011859:Radiography; D015203:Reproducibility of Results; D016896:Treatment Outcome; D055815:Young Adult