Percutaneous Sacroiliac Screw Fixation: A Modified Screw Insertion Method Using Just 2 Fluoroscopy Views.

Area of Science:

• Orthopedic surgery
• Medical imaging
• Surgical innovation

Background:

• Percutaneous sacroiliac screw fixation (PSSF) is crucial for unstable pelvic ring fractures.
• Complex pelvic anatomy presents challenges for traditional PSSF.
• Minimizing surgical complications, operation duration, and radiation exposure are key goals.

Purpose of the Study:

• To evaluate a modified PSSF technique using two fluoroscopy views.
• To compare operative time and radiation exposure with the conventional three-view method.
• To assess the accuracy of screw placement in the modified technique.

Main Methods:

• Simulated PSSF procedures on 10 radiopaque pelvic models.
• Conventional method (three fluoroscopy views) vs. modified method (two views: outlet and inlet).
• Accuracy assessed via CT scan; operation duration and radiation exposure were measured.

Main Results:

• Both methods achieved 90% accuracy in screw placement.
• The modified two-view method significantly reduced radiation exposure (4.2 min vs. 6.1 min).
• The modified method also significantly decreased operation duration (35.5 min vs. 45.7 min).

Conclusions:

• A modified PSSF technique with two fluoroscopy views is as accurate as the conventional method.
• This modification effectively reduces operation time.
• The modified approach lowers patient and surgeon radiation exposure.