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Incidence of congenital clubfoot in Sweden
Henrik Wallander1, Lennart Hovelius, Karl Michaelsson
1Department of Orthopaedic Surgery, Gävle Hospital, Gävle, Sweden. henrik.wallander@lg.se
Insights
The cumulative incidence of idiopathic clubfoot in Sweden is 1.4 per 1000 births, with boys affected more often. Significant regional differences were observed, warranting further investigation.
Area of Science:
- Orthopedics
- Pediatric Health
- Epidemiology
Background:
- Idiopathic clubfoot is a common congenital orthopedic condition.
- Nationwide incidence data for clubfoot are limited.
- This study aimed to determine the cumulative incidence in Sweden.
Purpose of the Study:
- To prospectively assess the cumulative incidence of idiopathic clubfoot in Sweden.
- To analyze gender distribution, regional variation, and seasonal patterns of clubfoot occurrence.
Main Methods:
- A prospective, multicenter study was conducted over two consecutive years.
- Data from 44 participating clinics identified new clubfoot cases.
- Medical records of 280 children born between 1995-1996 with clubfoot were analyzed.
Main Results:
- The average cumulative incidence of clubfoot was 1.4 per 1000 births (95% CI 1.2-1.6).
- Boys constituted three-quarters of the cases, and half of the cases involved both feet.
- Significant regional heterogeneity in incidence was observed, but no seasonal variation.
Conclusions:
- The incidence of clubfoot in Sweden is higher than previously reported in Scandinavian studies.
- Gender and laterality patterns align with prior research.
- Significant regional differences in clubfoot incidence require further in-depth investigation.
Background:
Idiopathic clubfoot is one of the most common congenital orthopedic problems. Nationwide studies of the incidence are scarce. We performed a prospective multicenter study in order to assess the cumulative incidence in Sweden over 2 consecutive years.
Patients And Methods:
44 clinics identified as treating clubfoot reported new cases prospectively. The medical records of 280 children with clubfoot born during 1995- 1996 were collected and analyzed with special reference to gender, regional distribution and seasonal variation.
Results:
The average cumulative incidence of clubfoot during the study period was 1.4/10(3) (95% CI 1.2- 1.6). Three-quarters of the cases were boys. In half of the cases both feet were affected. There was significant regional heterogeneity, but no seasonal variation in occurrence of clubfoot.
Interpretation:
The cumulative incidence was higher than in earlier Scandinavian studies. Gender distribution and laterality were similar to those in previous reports. We found significant regional differences in incidence, but the cause of this observation must be investigated in greater depth.
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