Intermediate
Technical
IVT
radiolucent line
Dark line on radiographs indicating areas where X-rays pass through more easily, often suggesting loosening around implants.
Full Definition
A radiolucent line appears as a dark zone on radiographic images, representing areas of decreased bone density or the presence of soft tissue or fluid. In orthopedic surgery, radiolucent lines are particularly significant when they appear around prosthetic implants, potentially indicating loosening, osteolysis, or infection. The presence, progression, and pattern of these lines are crucial factors in determining implant stability and the need for revision surgery.
Usage
Usage note: Describe location and progression; distinguish from normal anatomical lucencies.
In Context
- "Progressive radiolucent lines were noted around the acetabular component on serial radiographs." — follow-up imaging report
- "No radiolucent lines were observed at the bone-cement interface." — postoperative assessment
Also known as
lucent line
osteolytic line
Contrasted with
radiopaque line
Don't confuse with
cement mantle
stress shielding