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A radiographic simulation study of fixed superior pubic ramus fractures with retrograde screw insertion
Qi Quan1, Lei Hong2, Biao Chang1
1Department of Orthopedic Surgery, Key Laboratory of Musculoskeletal Trauma & War Injuries PLA, Beijing Key Lab of Regenerative Medicine in Orthopedics, General Hospital of Chinese People's Liberation Army, 28 FuXing Road, Beijing 100853, People's Republic of China.
Objectives:
The study's aim is to calculate the parameters for retrograde insertion points for fixed superior pubic ramus fractures.
Methods:
From the pubic symphysis, diameter and length of the screw were measured, as well as the angle between the screw axis and the 3 planes.
Results:
When the diameter was fixed at 4.5 mm, the maximum lengths were 125 mm and 119 mm.
Conclusions:
When the fracture occurs in Zone I, the penetration point could be selected in the pubic symphysis pubis angle to ensure that medial fracture fragments have sufficient screw channel length.
