Community hub
Recent from talks
Knowledge base stats:
Talk channels stats:
Members stats:
Acetabuloplasty
Acetabuloplasty are surgical techniques, categorized under pelvic osteotomy, used to treat hip dysplasia (HD) in children. These include several technically similar procedures, such as the Lance, Pemberton, and Dega osteotomies. The Salter osteotomy, while broadly considered part of this group, differs significantly in its approach.
The pelvis, specifically the hip bone, comprises three bones: the ilium, pubis, and ischium. During growth, the junctions between these bones, known as growth plates, remain open. Initially connected by connective tissue, these plates later become flexible through cartilage and ossify only at the end of skeletal growth. The three growth plates converge at the center of the hip joint's acetabulum, forming the Y-suture.
In hip dysplasia, the femoral head lacks sufficient lateral and anterior coverage, known as the acetabular rim. This inadequate coverage can cause the femoral head to slip upward and, depending on the severity, may lead to dislocation of the hip.
Acetabuloplasty leverages the open Y-suture. The ilium is cut above the acetabulum (osteotomy) to allow the lateral acetabular rim to be tilted downward, with the Y-suture serving as the pivot point. This principle underlies all acetabuloplasty techniques, with variations only in their execution.
The goal of acetabuloplasty is to restore the lateral and anterior acetabular rim to provide physiological coverage for the femoral head. Early surgery, when indicated, increases the likelihood of normal development of the hip joint and femoral neck.
Lateral coverage is measured using the acetabular angle (AC angle) on a pelvic X-ray, defined as the angle between a horizontal line through the Y-sutures and a line along the acetabular rim. In healthy newborns, the AC angle is approximately 25°, decreasing to about 15° by age 6 and 11–12° by age 12. Acetabuloplasty aims to correct the AC angle to these physiological values, achieving an anatomical reconstruction.
Acetabuloplasty is primarily indicated for hip dysplasia when conservative treatments—such as abduction braces, splints, or repositioning casts—fail or are insufficient. An absolute indication is a non-reducible hip dislocation. When indicated, surgery should be performed promptly.
The procedure can be performed as early as the first month of life if no medical contraindications exist. However, joint-correcting surgery is typically recommended around 18 months, when bone development and strength allow for precise execution. Due to prior conservative measures, surgery often occurs no earlier than the second year. Mild cases of hip dysplasia may have a favorable prognosis, allowing surgical intervention to be delayed until age 3.
Hub AI
Acetabuloplasty AI simulator
(@Acetabuloplasty_simulator)
Acetabuloplasty
Acetabuloplasty are surgical techniques, categorized under pelvic osteotomy, used to treat hip dysplasia (HD) in children. These include several technically similar procedures, such as the Lance, Pemberton, and Dega osteotomies. The Salter osteotomy, while broadly considered part of this group, differs significantly in its approach.
The pelvis, specifically the hip bone, comprises three bones: the ilium, pubis, and ischium. During growth, the junctions between these bones, known as growth plates, remain open. Initially connected by connective tissue, these plates later become flexible through cartilage and ossify only at the end of skeletal growth. The three growth plates converge at the center of the hip joint's acetabulum, forming the Y-suture.
In hip dysplasia, the femoral head lacks sufficient lateral and anterior coverage, known as the acetabular rim. This inadequate coverage can cause the femoral head to slip upward and, depending on the severity, may lead to dislocation of the hip.
Acetabuloplasty leverages the open Y-suture. The ilium is cut above the acetabulum (osteotomy) to allow the lateral acetabular rim to be tilted downward, with the Y-suture serving as the pivot point. This principle underlies all acetabuloplasty techniques, with variations only in their execution.
The goal of acetabuloplasty is to restore the lateral and anterior acetabular rim to provide physiological coverage for the femoral head. Early surgery, when indicated, increases the likelihood of normal development of the hip joint and femoral neck.
Lateral coverage is measured using the acetabular angle (AC angle) on a pelvic X-ray, defined as the angle between a horizontal line through the Y-sutures and a line along the acetabular rim. In healthy newborns, the AC angle is approximately 25°, decreasing to about 15° by age 6 and 11–12° by age 12. Acetabuloplasty aims to correct the AC angle to these physiological values, achieving an anatomical reconstruction.
Acetabuloplasty is primarily indicated for hip dysplasia when conservative treatments—such as abduction braces, splints, or repositioning casts—fail or are insufficient. An absolute indication is a non-reducible hip dislocation. When indicated, surgery should be performed promptly.
The procedure can be performed as early as the first month of life if no medical contraindications exist. However, joint-correcting surgery is typically recommended around 18 months, when bone development and strength allow for precise execution. Due to prior conservative measures, surgery often occurs no earlier than the second year. Mild cases of hip dysplasia may have a favorable prognosis, allowing surgical intervention to be delayed until age 3.