Acetabular version describes how the hip socket is rotated and oriented in the pelvis. It is usually discussed as “anteversion” (more forward-facing) or “retroversion” (more backward-facing). It is commonly measured on hip imaging and referenced in hip preservation and hip replacement planning. It helps clinicians describe hip structure in a precise, repeatable way.

Acetabular undercoverage means the hip socket does not cover the ball of the hip as much as expected. It is a structural finding related to hip shape and alignment. Clinicians most often discuss it when evaluating hip pain, instability, or hip dysplasia. It is commonly described using X-rays and other imaging measurements.

Acetabular teardrop is a teardrop-shaped shadow seen on a standard front-view (AP) pelvis X-ray. It is a radiographic landmark, meaning it is a feature created by overlapping bone contours on imaging. Clinicians use it as a reference point when assessing hip anatomy, alignment, and certain hip conditions. It is commonly discussed in orthopedic imaging, trauma evaluations, hip dysplasia workups, and hip replacement planning.

Acetabular sourcil is a radiology term for the dense “roof” of the hip socket seen on X-rays. It looks like a curved white line above the hip joint space, sometimes described as an “eyebrow.” It represents the main weight-bearing area of the acetabulum (the socket). Clinicians use it most often when reading pelvis and hip imaging.

The Acetabular socket is the “cup-shaped” part of the hip joint that holds the femoral head (the ball). In normal anatomy, it is the acetabulum in the pelvis. In hip replacement surgery, the term can also refer to the artificial socket component that replaces the damaged cup surface. It is commonly discussed in imaging reports, hip arthritis care, and total hip arthroplasty (hip replacement).

An Acetabular shell is a metal “cup” implanted into the hip socket during hip replacement surgery. It replaces or resurfaces the socket side of the hip joint so the hip can move smoothly. It is most commonly used in total hip arthroplasty (total hip replacement) and some revision surgeries.

Acetabular roof is the upper, weight-bearing part of the hip socket (the acetabulum). It is the bony “dome” that helps support the femoral head during standing and walking. Clinicians commonly refer to it on X-rays, CT, and MRI when evaluating hip alignment and coverage. It is also discussed in conditions like hip dysplasia, osteoarthritis, and acetabular fractures.

Acetabular rim trimming is a surgical technique that removes a small amount of bone from the rim of the acetabulum (the hip socket). It is most commonly performed as part of hip arthroscopy for femoroacetabular impingement (FAI), especially “pincer” overcoverage. The goal is to reshape the socket edge so the hip can move with less bony conflict. It is often combined with treatment of the labrum and cartilage when those tissues are involved.

The Acetabular rim is the bony edge of the hip socket (the acetabulum). It forms the boundary where the socket meets the femoral head (the “ball” of the hip joint). It is commonly referenced in hip imaging, hip arthroscopy, and evaluation of hip pain. It also serves as the attachment area for the hip labrum, a ring of cartilage around the socket.

Acetabular retroversion is a hip socket alignment where the acetabulum faces more backward than expected. In plain terms, the socket is “turned” in a way that can change how the ball-and-socket joint fits and moves. It is commonly discussed when evaluating hip pain, femoroacetabular impingement, and early joint wear. It is also used in imaging reports and surgical planning for certain hip preservation procedures.