An **Acetabular fracture** is a break in the **acetabulum**, the socket part of the hip joint in the pelvis. It usually happens after trauma and can affect how the femoral head (the “ball” of the hip) fits and moves in the socket. The term is commonly used in emergency care, orthopedic trauma, and imaging reports for hip and pelvic injuries. It matters because the acetabulum is a weight-bearing surface, so joint alignment can influence function over time.

Acetabular fossa is a shallow depression in the center of the hip socket (the acetabulum). It is part of the pelvis, inside the cup-shaped area where the femoral head sits. Clinicians most often mention it in anatomy, imaging reports, and hip surgery discussions. It helps describe where certain tissues sit and where some problems can occur inside the joint.

Acetabular dysplasia is a condition where the hip socket does not adequately cover the ball of the hip joint. It can lead to hip pain, instability, and early wear of joint cartilage over time. Acetabular dysplasia is commonly discussed in orthopedics, sports medicine, and hip preservation care. It is also referenced in imaging reports and pre-surgical planning for hip procedures.

Acetabular dome is the upper, weight-bearing region of the hip socket (the acetabulum). It is the area where the femoral head most commonly presses during standing and walking. Clinicians often refer to it on hip X-rays, CT scans, and MRI reports. It is also a key landmark in planning and evaluating hip surgery.

An Acetabular cup is an implant that replaces the socket side of the hip joint. It is one of the core components used in total hip replacement (total hip arthroplasty). It sits in the pelvis where the natural acetabulum (hip socket) is located. It helps create a smooth bearing surface for the hip to move.

Acetabular component migration means a hip replacement cup has shifted position inside the pelvis. It is most commonly discussed after total hip arthroplasty (total hip replacement). Clinicians use it as a way to describe and measure implant stability over time. It is usually detected on imaging rather than “felt” directly.

Acetabular cartilage is the smooth joint cartilage that lines the socket side of the hip joint (the acetabulum). It helps the hip move with low friction while spreading loads across the socket. Clinicians discuss it when evaluating hip pain, stiffness, mechanical symptoms, or arthritis. It is also a key structure assessed during hip imaging and hip arthroscopy.

Acetabular anterior column is an orthopedic term for the front “pillar” of bone that helps form the hip socket (acetabulum). It describes how key parts of the pelvis connect and transmit body weight into the hip joint. Clinicians use it most often in acetabular fracture descriptions, CT/X-ray interpretation, and surgical planning. It is a concept in anatomy and fracture care, not a medication or device by itself.

ACEA measurement is a radiographic angle used to describe how much the front (anterior) part of the hip socket covers the femoral head. It is most commonly measured on a specific hip X-ray view called the false-profile view. Clinicians use it to help assess hip stability, acetabular dysplasia, and conditions related to hip impingement. It is a measurement tool, not a treatment.

ABIS is a term used for an anterior-based, intermuscular approach to hip surgery. It most commonly comes up when discussing surgical approaches for total hip arthroplasty (hip replacement). In plain language, it describes reaching the hip joint through a natural interval between muscle groups. Exact naming and what a surgeon includes under “ABIS” can vary by clinician and case.