In Patients With Hip Dysplasia, Mid-Term Lower Extremities and Spine After Hip Arthroplasty Natural Course

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

33 participants

Study Classification

INTERVENTIONAL

Study Start Date

2021-04-15

Study Completion Date

2024-10-01

Brief Summary

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Patients with developmental hip dysplasia often present to the outpatient clinic in adulthood with hip pain due to progressive hip osteoarthritis. However, they may have complaints such as limping, lumbar lordosis, lower back pain, and leg length difference. Today, the best treatment option for these patients is hip arthroplasty. Hip arthroplasty causes a high rate of functional improvement and pain relief. According to the hip arthroplasty technique applied, improvement in lameness, leg length difference and spinal curvatures is expected. The aim of our study is to show the change in postoperative spine and lower extremity curvatures after hip arthroplasty in patients with advanced developmental hip dislocation.

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Detailed Description

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Developmental hip dysplasia (DDH) describes the spectrum of anatomical changes in the acetabulum and proximal femur; these can cause limping, lower back pain, lumbar lordosis, and leg length variation. DDH is the main cause of degenerative arthritis of the hip and valgus deformity of the knee. The best treatment option for DDH is total hip arthroplasty (THA). During THA, the distorted anatomy of the acetabulum and proximal femur poses great difficulties. Additionally, the soft tissue can be released and the femur can be shortened while correcting the placement of the acetabulum to prevent neurological damage (sciatic nerve paralysis). Postoperative evaluations focused on assessing joint function and alleviating preoperative clinical symptoms. Some studies have examined changes in lower extremity and knee alignment after THA in patients with DDH. In patients with DDH, THA may cause genu valgus deformity due to increased lower extremity length and Q angle immediately after the operation. THA extends the lower extremity, affecting the patellofemoral joint and anterior knee pain. However, the long-term effects of THA on the alignment of the lower extremity are unclear, especially in patients with Crowe type III and IV DDH, which involves femoral shortening osteotomy. There are few studies examining changes in the knee and lower extremities as a result of THA in patients with DDH. The aim of this study is to evaluate the mid- and long-term alignment of the spine and lower extremity after THA with or without femoral shortening osteotomy in patients with unilateral DDH (Crowe type III-IV).

Conditions

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Total Hip Arthroplasty

Study Design

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Allocation Method

NA

Intervention Model

SINGLE_GROUP

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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Patients with Crowe type 3 or Crowe type 4 hip dysplasia who underwent total hip replacement

Group Type EXPERIMENTAL

total hip arthroplasty

Intervention Type PROCEDURE

Patients with Crowe type 3 or Crowe type 4 hip dysplasia who underwent hip replacement

Interventions

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total hip arthroplasty

Patients with Crowe type 3 or Crowe type 4 hip dysplasia who underwent hip replacement

Intervention Type PROCEDURE

Eligibility Criteria

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Inclusion Criteria

1. Patients with unilateral Crowe type 3 hip dysplasia
2. Patients with unilateral Crowe type 4 hip dysplasia

Exclusion Criteria

1. Patients with unilateral Crowe type 1 hip dysplasia
2. Patients with unilateral Crowe type 2 hip dysplasia
3. History of previous surgery on the hip for which surgery is planned

Eligible Sex

ALL

Accepts Healthy Volunteers

No