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Comparison of three different pelvic circumferential compression devices: a biomechanical cadaver study
S P Knops1, N W L Schep, C W Spoor
1Department of Surgery-Traumatology, Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands. e.vanlieshout@erasmusmc.nl
The Journal of Bone and Joint Surgery. American Volume
|January 4, 2011
Summary
Pelvic circumferential compression devices effectively stabilize pelvic fractures, reducing volume without adverse displacement. The T-POD device required the least force for reduction compared to the Pelvic Binder and SAM Sling.
Area of Science:
- Orthopedic surgery
- Trauma care
- Biomechanics
Background:
- Pelvic circumferential compression devices (PCCDs) stabilize the pelvic ring after trauma.
- Their effect on fracture fragment reduction is not fully understood.
- This study evaluates PCCDs for pelvic fracture reduction quality.
Purpose of the Study:
- Compare the dynamic realignment and final reduction of pelvic fractures using different PCCDs.
- Assess the quality of reduction achieved by various devices.
Main Methods:
- Evaluated three PCCDs: Pelvic Binder, SAM Sling, and T-POD.
- Generated four Tile classification pelvic fracture types in 16 cadavers.
- Used a 3D infrared video system to track fracture fragment movement with applied forces.
Main Results:
- All PCCDs closed the pelvic ring and reduced pelvic volume in Tile B and C fractures.
- No adverse fracture displacement (>5 mm) occurred.
- The T-POD required significantly less pulling force (43 ± 7 N) for reduction than the Pelvic Binder (60 ± 9 N) and SAM Sling (112 ± 10 N).
Conclusions:
- PCCDs (Pelvic Binder, SAM Sling, T-POD) effectively reduce Tile B and C pelvic fractures.
- No overreduction was observed.
- The T-POD demonstrated the lowest force requirement for achieving fracture reduction.