Cross-sectional Study of Ultrasonic Diagnosis of Iliac Joint Capsule Muscle

Study Overview
=================
Brief Summary
-----------------
In order to investigate the relationship between the iliac joint capsular muscle and the development of the hip joint, this study used ultrasound Doppler to measure the anatomical circumference of the iliac joint capsular muscle to explore the relationship

Detailed Description
-----------------
In order to investigate the relationship between the iliac joint capsular muscle and the development of the hip joint, this study used ultrasound Doppler to measure the anatomical circumference of the iliac joint capsular muscle to explore the relationship.Ultrasound was used to compare the size of the iliac joint cystic muscle in the three groups: patients with developmental dysplasia of the hip (DDH), patients with Pincer type femoral hip impingement, and normal control group. The shear wave velocity and shear modulus of the iliac joint capsular muscle of three groups were compared to compare the degree of fat infiltration in muscle.

Official Title
-----------------
A Cross-sectional Study: the Development of the Hip Joint Was Studied by Measuring the Anatomical Circumference of the Capsular Muscle of the Iliac Joint With Ultrasound Doppler

Conditions
-----------------
Femoroacetabular Impingement, Hip Developmental Dysplasia

Intervention / Treatment
-----------------
* Device: ultrasound Doppler


Participation Criteria
=================
Eligibility Criteria
-----------------
Inclusion Criteria: ≥ 20 years; Clinically suspected of DDH or Pincer and underwent surgery Understand and sign the informed consent Exclusion Criteria: Leggcalve´-Perthes disease Muscle diseases Hip development disorder History of progressive osteoarthritis History of hip surgery History of arthritis of the hip joint With pacemaker or metal in the body

Ages Eligible for Study
-----------------
Minimum Age: 20 Years
Maximum Age: 50 Years

Sexes Eligible for Study
-----------------
All

Accepts Healthy Volunteers
-----------------
Accepts Healthy Volunteers

Study Plan
=================
How is the study designed?
-----------------

Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| hip developmental dysplasia group<br>patients with developmental dysplasia of hip | Device: ultrasound Doppler<br>* A cross-sectional study:the development of the hip joint was studied by measuring the anatomical circumference of the capsular muscle of the iliac joint with ultrasound Doppler<br>|
| femoroacetabular impingement group<br>patients with femoroacetabular impingement | Device: ultrasound Doppler<br>* A cross-sectional study:the development of the hip joint was studied by measuring the anatomical circumference of the capsular muscle of the iliac joint with ultrasound Doppler<br>|
| control group<br>healthy volunteers | Device: ultrasound Doppler<br>* A cross-sectional study:the development of the hip joint was studied by measuring the anatomical circumference of the capsular muscle of the iliac joint with ultrasound Doppler<br>|

What is the study measuring?
-----------------
Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Parameter of ultraphonic results | The anatomical circumference of the capsular muscle of the iliac joint was measured by ultrasound Doppler，including the dimensional ultrasonic gram and shear wave elasticity diagram | Ultraphonic was conducted when patients were included in the study from March to October, 2019 |