Evaluation Of Hip Dysplasia Research Articles

Reliability of the Crowe und Hartofilakidis classifications used in the assessment of the adult dysplastic hip

To assess the inter-observer and intra-observer reliability of two commonly used radiographic classification systems in the evaluation of hip dysplasia in skeletally mature adults. Three observers with different levels of training independently classified 62 dysplastic hips on 51 standard anteriorposterior pelvis radiographs according to the criteria defined by Crowe and by Hartofilakidis. To assess intra-observer reliability, the same radiographs were reviewed 3 months later by the same observers. At the time of the radiographic examination, the mean age of the 51 patients had been 54 years (range 18-82 years). A high correlation concerning the inter- and intra-observer reliability of both systems was demonstrated. Inter-observer reliability displayed a weighted kappa coefficient of 0.82 for the Crowe and 0.75 for the Hartofilakidis classification. Intra-observer reliability showed a kappa coefficient of 0.86 and 0.79, respectively. Both classification systems can be recommended to compare collectives of adult patients with congenital dysplasia of the hip. However, for future clinical practice, it would be advisable to agree on one universally accepted system as a standard in the literature.

Comparison of the standing tangential radiographic projection of the hip with standard methods of evaluation for hip dysplasia in the dog

SummaryThe standing tangential radiographic position (STRP) of the hip is a technique that enables the clinician to visualize the femoral head and acetabulum in an unsedated patient in a weight-bearing stance. This study compared the technique to other radiographic methods of evaluating canine hips for the dysplasia. The methods were compared as to Norberg angle, Distraction Index and by use of novel measures of subluxation and coverage. A statistical significance of correlation was not seen between the STRP technique and other methods. Although a variety of explanations are discussed, the authors do not recommend the use of this technique for the evaluation of hip dysplasia.

A new 3-D technology for visualization and evaluation of hip dysplasia in newborns

A new 3-D technology for visualization and evaluation of hip dysplasia in newborns