Related Experiment Video
Updated: Mar 16, 2026
The Transition to an Anterior-Based Muscle Sparing Approach Improves Early Postoperative Function but is Associated with a Learning Curve
Published on: September 7, 2022
Different Stabilization Techniques for Type 62B3 Acetabular Fractures in Combination With Primary Total Hip
Valentinas Uvarovas1, Igoris Šatkauskas1, Robertas Urbonavičius2
1Clinic of Rheumatology, Traumatology Orthopaedic and Reconstructive Surgery, Medical Faculty, Centre of Orthopedics and Traumatology, Republican Vilnius University Hospital, Vilnius University, Vilnius, Lithuania.
Introduction:
The total hip arthroplasty (THA) as part of acute fracture management is used for acetabular fractures in elderly patients. Our objective was to assess the stability of osteosynthesis performed using 2 different techniques in combination with THA in an experimental model.
Materials And Methods:
We conducted 20 experiments using the left-side hemipelves composite bone models. There were 2 testing groups: 1- and 2-stage osteosynthesis. The acetabular fractures of the anterior column and posterior hemitransverse were simulated. The same THA technique was used in both groups. The stability of osteosynthesis was explored and compared between the groups by measuring the fracture displacement of anterior and posterior columns under the standardized test load (1187 N) protocol. Load distance diagrams were generated.
Results:
The 0.680-mm gap (0.518; 1.548) of the posterior column in the 1-stage group (n = 10) was higher than the 0.370-mm gap (0.255; 0.428) in the 2-stage group (n = 10; P = .002). There was no significant difference between the gap of the anterior column in the 1- and 2-stage groups (0.135 [0.078; 0.290] mm vs 0.160 [0.120; 0.210] mm; P = .579).
Conclusion:
The 2-stage osteosynthesis of the anterior and posterior columns in combination with THA provides better stability of posterior column when compared to 1-stage method in composite bone models.
