Nov 13, 2024 · Adult Dysplasia of the Hip is a disorder of abnormal development of the hip joint resulting in a shallow acetabulum with lack of anterior and lateral coverage. Diagnosis is made with plain radiographs of the hip joint.

- Crowe Classification: (also see Paprosky classification and total hip replacement menu) - type of classification for severity of adult DDH ; - grade 1 : hips have less than 50% subluxation;

Crowe’s classification is based on three easily identifiable anatomic landmarks: (1) the height of the pelvis; (2) the medial head-neck junction in the affected hip; and (3) the inferior margin of the acetabulum (the teardrop).

Treatment of Crowe IV developmental dysplasia of the hip (DDH) with total hip arthroplasty (THA) reconstructs the true acetabulum, which improves hip biomechanics and function. However, restoration of the native acetabulum may lead to limb lengthening and traction neuropraxia.

Total hip arthroplasty (THA) of Crowe type IV developmental dysplasia of the hip (DDH) is challenging. Although traditional (lateral, posterolateral, and posterior) THA approaches have been used with great anatomic success, they damage periarticular ...

Mar 7, 2025 · Crowe type IV Developmental Dysplasia of the Hip (DDH) is a severe form of hip dysplasia with a shallow acetabulum and a high degree of subluxation or dislocation. It causes excruciating pain ...

The direct anterior approach for total hip arthroplasty for severe dysplasia (Crowe III and IV) provides satisfactory medium to long-term outcomes

Patients with Crowe IV DDH can be treated by cementless THA combined with shortening derotational subtrochanteric osteotomy. This method can greatly improve hip joint function and relieve pain without significant complications.

In brief: Crowe's classification: arthroplasty in developmental dysplasia of the hip Clin Orthop Relat Res . 2011 Jan;469(1):306-8. doi: 10.1007/s11999-010-1316-6.

The severe anatomic deformities render acetabular reconstruction as one of the greatest challenges in total hip arthroplasty (THA) for patients with Crowe III/IV developmental dysplasia of the hip (DDH).