Knee Arthrogram


Exam Date:


CPT Code/s:

Procedure start time:

Procedure end time:

Attending radiologist: _______________ was present for and participated in the entirety of the procedure.

Resident radiologist:

After the explanation of the risks, benefits, alternatives and possible complications, written and verbal informed consent was obtained from the patient and placed in the chart.

The patient was identified in the fluoroscopic suite. A brief history and physical was conducted. The patient was placed in the supine position with their R/L knee flexed to approximately 30 degrees. The anterior knee was marked, prepped and draped in the usual sterile fashion. Local infiltrative anesthesia of the area inferolateral to the patella was achieved utilizing 1% lidocaine without epinephrine through a 22 gauge 1.5 inch needle. Next, a 22 gauge spinal needle was inserted into the same area and angled superomedially toward the femoral notch. Once the bony cortex was felt, the correct placement was confirmed via fluoroscopic imaging.

The following was then injected into the knee capsule-

40 cc of a solution of 20 cc Omnipaque 300, 15 cc normal saline and 5 cc 1% lidocaine without epinephrine for CT arthography.


40 cc of a solution of 20 cc normal saline, 10 cc Omnipaque 300, 9 cc 1% lidocaine without epinephrine, and 1.0 cc gadolinium

Again, correct placement within the joint was confirmed by the diffusion pattern of contrast as seen with real time fluoroscopic imaging. The needle was then removed and hemostasis was achieved. A band-aid was placed.

AP, Oblique, and Lateral spot images were then obtained of the knee which demonstrated contrast distention of the knee joint, narrowing of the medial compartment, and marginal osteophytes at the bilateral femoral condyles.

The patient reported no immediate complications and was sent to CT/MRI for further imaging.

Technically successful R/L knee arthrogram demonstrating moderate osteoarthritis most notably of the medial compartment.