Interobserver and Intraobserver Reliability in the Salter Classification of Avascular Necrosis of the Femoral Head in Developmental Dysplasia of the Hip
| Autor: | Kishore Mulpuri, Wudbhav N. Sankar, Peter J. Cundy, Ethan Ponton, John H. Wedge, Charles T. Price, Emily K. Schaeffer, Harry K.W. Kim, Simon P. Kelley, Nicholas Clarke |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
medicine.medical_specialty
pediatrics Avascular necrosis Femoral head intrarater reliability inter-rater reliability Femur Head Necrosis developmental dysplasia of the hip Hip Dislocation Humans avascular necrosis of the femoral head Medicine Orthopedics and Sports Medicine Child Hip business.industry Developmental dysplasia Intraobserver reliability Infant Reproducibility of Results Femur Head General Medicine medicine.disease medicine.anatomical_structure AVN Pediatrics Perinatology and Child Health ComputingMethodologies_DOCUMENTANDTEXTPROCESSING Radiology DDH business |
| Zdroj: | Journal of Pediatric Orthopedics |
| ISSN: | 0271-6798 |
| DOI: | 10.1097/bpo.0000000000001979 |
| Popis: | Supplemental Digital Content is available in the text. Background: Avascular necrosis (AVN) of the femoral head is a concerning complication that can result from treatments for developmental dysplasia of the hip (DDH). AVN can lead to degenerative osteoarthritis, persistent acetabular dysplasia, reduced function, and continuing hip pain. The incidence of AVN reported in the DDH literature is widely varied (0% to 73%). This variability may arise from lack of consensus on what constitutes true AVN in this patient population, and lack of clear criteria provided in studies reporting incidence rates. Methods: A multicentre, prospective database of infants diagnosed with DDH between 2010 and 2014 from 0 to 18 months of age was analyzed for patients treated by closed reduction (CR). Twelve pediatric orthopaedic surgeons completed 2 rounds of AVN assessments. Deidentified anteroposterior radiographs at most recent follow-up were provided to surgeons along with patient age at radiographic assessment, length of follow-up, ands affected hip. Ten of 12 surgeons completed a third round of assessments where they were provided with 1 to 2 additional radiographs within the follow-up period. Radiographic criteria for total AVN described by Salter and colleagues were used. Surgeons rated the presence of AVN as “yes” or “no” and kappa values were calculated within and between rounds. Results: A total of 69 hips in 60 patients were assessed for AVN a median of 22 months (range: 12 to 36) post-CR. Interobserver kappa values for rounds 1, 2, and 3 were 0.52 (range: 0.11 to 0.90), 0.61 (range: 0.21 to 0.90), and 0.53 (range: 0.10 to 0.79), respectively. Intraobserver agreement for AVN diagnosis was an average of 0.72 (range: 0.31 to 0.96). Conclusions: Despite using the most commonly referenced diagnostic criteria, radiographic diagnosis of AVN following CR in DDH patients demonstrated only moderate agreement across surgeons. The addition of sequential radiographs did not improve cross-observer reliability, and while substantial agreement was seen within observers, the range of intraobserver kappa values was large. Level of Evidence: Level I—diagnostic study. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|