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Topic:

Developmental Dysplasia of the Hip

Issue:

Hip

Category:

Developmental

Title:

Twelve to Twenty-year Follow-up of Dega Acetabuloplasty in Patients With Developmental Dysplasia of the Hip: Is it as Effective as Expected?

Author:

Danişman, Murat MD; Dursun, Gökay MD; Koçyiğit, İsmail Aykut MD; Yilgor, Caglar MD; Aksoy, Mehmet Cemalettin MD

Journal:

Journal of Pediatric Orthopaedics

Date:

January 2024

Reference:

44(1): p 15-21, DOI: 10.1097/BPO.0000000000002558

Level Of Evidence:

IV

# of Patients:

25 patients (32 hips)

Study Type:

Retrospective case series

Location:

Single surgeon, unknown institutio

Summary:

This study evaluates the long-term outcomes of Dega acetabuloplasty in patients with developmental dysplasia of the hip (DDH), specifically looking at the rate of residual acetabular dysplasia after surgery.

Methods:

Inclusion Criteria: Patients who had undergone Dega acetabuloplasty for DDH. Exclusion Criteria: Not specified. Intervention: Dega acetabuloplasty procedure for DDH. Outcomes Measured: Radiographic Outcomes: Lateral center-edge angle, femoral head extrusion index, and Tönnis angle. Clinical Outcomes: Modified McKay criteria for clinical evaluation. Follow-up Duration: Mean follow-up of 16.5 years (range 12 to 20 years).

Exclusions:

Not specified

Results:

Residual Dysplasia: 5 hips (15.6%) were dysplastic according to lateral center-edge angle, femoral head extrusion index, and Tönnis angle. 2 hips (6.3%) required reoperation for resubluxation. Overall, 7 hips (21.9%) had residual dysplasia. Overcoverage: 6 hips (18.7%) showed overcoverage. Severin Classification: 26 hips (81.3%) in Severin group I and II (good to excellent outcomes) 4 hips (12.5%) in Severin group III (fair outcomes) 2 hips (6.2%) in Severin group IV (poor outcomes) Modified McKay Criteria: 20 hips (62.5%) had excellent results 7 hips (21.9%) had good results 5 hips (15.6%) had fair results Correlation: Severin classification and modified McKay criteria were correlated with the presence of residual dysplasia (P < 0.05).

Conclusions:

78% of hips treated with Dega acetabuloplasty for DDH did not have acetabular dysplasia after a mean follow-up of 16 years. Despite good outcomes, regular follow-up is recommended, especially to monitor for residual dysplasia, even in asymptomatic patients.

Relevance:

Limitations:

Perspective:

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