Related Experiment Video
Updated: Feb 5, 2026

Minimally Invasive Treatment for Thoracolumbar Burst Fracture Using Sagittal Alignment Screws and A Trauma Reduction Device
Published on: November 8, 2024
Compression screws and buttress plate versus compression screws only for Hoffa fracture in Chinese patients: a
Bangbao Lu1, Shushan Zhao1, Zhongwei Luo1
1Department of Orthopaedics, Xiangya Hospital, Central South University, Changsha, China.
Objective:
To compare compression screws and buttress plate (CS plus BP) with compression screws only (CS) in treating patients with Hoffa fracture.
Methods:
This retrospective study included Chinese patients with Hoffa fracture treated by open reduction and internal fixation. Radiographs and clinical outcomes (range of movement [ROM], bone union and Knee Society Score [KSS]) were compared between patients treated using CS plus BP versus CS only.
Results:
At 4 months following surgery, significantly better outcomes were shown in the CS plus BP group ( n = 24) versus CS only group ( n = 21) regarding ROM (120.4 ± 5.2° versus 110 ± 7.1°) and KSS (85.5 ± 4.1 versus 79.7 ± 3.3). At the 12-month follow-up, significantly better outcomes were maintained in the CS plus BP versus CS only group regarding ROM (126.2 ± 7.4° versus 120.5 ± 8.2°) and KSS (88.3 ± 4.6 versus 84.2 ± 4.0). At the final follow-up, all patients had normal fracture healing and no malunion, nonunion or reduction loss.
Conclusions:
Fixation with CS plus BP for Hoffa fracture is effective and reliable, and may provide more adequate stability and better outcomes versus CS only.
Related Concept Videos
Screw: Problem Solving
To evaluate the...
Self-Locking Screw
A square-threaded screw jack carrying a load is considered self-locking if the screw retains its position even after the moment applied to it is removed.
Frictional Forces on Screws
A jack with a square-threaded screw is a mechanical device used to lift heavy loads by applying a force at its handle. When the force is applied, the screw turns, raising the load. The screw can...
Behavior of Concrete Under Compressive Load
As the concrete specimen fractures under...
Relation Between Tensile Strength and Compressive Strength of Concrete
Density, Specific Weight, Specific Gravity and Compressibility of Fluid
Specific weight represents the weight per unit volume and is calculated by multiplying...

