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. 2006 Oct;30(5):348-51.
doi: 10.1007/s00264-006-0113-z. Epub 2006 Apr 26.

The incidence of avascular necrosis of the healthy, contralateral femoral head at the end of the use of Pavlik harness in unilateral hip dysplasia

Károly Pap  1 , Sándor Kiss, Tamás Shisha, Gábor Marton-Szücs, György Szöke
Affiliations

The incidence of avascular necrosis of the healthy, contralateral femoral head at the end of the use of Pavlik harness in unilateral hip dysplasia

Károly Pap et al. Int Orthop. 2006 Oct.

Erratum in

  • Int Orthop. 2006 Oct;30(5):352

Abstract
in English, French

We examined the incidence of avascular necrosis (AVN) of the healthy femoral head in unilateral hip dysplasia at the end of the use of the Pavlik harness. The evaluation of AVN was done with the help of standardised roentgenograms. Between 1974 and 1982, 1,064 dysplastic hips (869 children) were treated with the Pavlik harness at the Orthopaedic Department of Semmelweis University. Of these, 674 children who had unilateral hip dysplasia were chosen for this study. In the period of our investigation, ultrasonography was not yet used routinely, so in some cases the hip was mistakenly diagnosed as dysplastic. The average patient age was 3.2 months, and the average length of treatment was 4.9 months. We found no correlation between the appearance of AVN in the healthy hips at the end of treatment with the Pavlik harness and the age of the child at the start of treatment. On the other hand, there was a strong significant correlation between the appearance of AVN and the length of treatment.

Nous avons examiné l’incidence de la nécrose avasculaire de la tête fémorale dans les dysplasies unilatérales de hanches à la fin du traitement utilisant le harnais de Pavlik. L’évaluation de cette nécrose avasculaire a été déterminée à l’aide des radiographies standards. Entre 1974 et 1982, 1064 hanches dysplasiques (869 enfants) ont été traitées par harnais de Plavik au Département de l’Université Semmelweis. Parmi cette population, 674 enfants, présentant une lésion unilatérale de la hanche ont été choisis pour cette étude. Au moment de cette étude l’écho doppler de la hanche n’était pas utilisé en routine, ainsi certaines hanches ont été, à tort, diagnostiquées comme dysplasiques. L’âge moyen des patients était de 3,2 mois et la durée moyenne du traitement a été de 4,9 mois. Nous n’avons pas trouvé de corrélation entre l’aspect de la nécrose avasculaire de la hanche à la fin du traitement de l’harnais de Pavlik et de l’âge de l’enfant au moment du début du traitement. Par contre, il existe une corrélation significative entre l’existence de la nécrose avasculaire et la durée du traitement.

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Figures

Fig. 1
Fig. 1
The incidence of avascular necrosis (AVN) in unilateral hip dysplasia. Patients were grouped according to their ages at the start of treatment. The x-axis shows the patient age at the start of treatment, and the y-axis shows the incidence of AVN
Fig. 2
Fig. 2
The incidence of avascular necrosis (AVN) in unilateral hip dysplasia. The patients were grouped according to the length of treatment. The x-axis shows the length of the treatment, and the y-axis shows the incidence of AVN
See this image and copyright information in PMC

References

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