The Influence of Initial Magnetic Resonance Imaging Findings on the Compression Rate of Thoracolumbar Osteoporotic Vertebral Compression Fracture / 대한정형외과학회잡지

PURPOSE: To investigate the influence of the size of low intensity zone (LIZ) (T1 image) on the vertebral body and the increase in the compression rate in patients with osteoporotic vertebral compression fracture. MATERIALS AND METHODS: In a retrospective study, 187 patients (198 segments) who were followed-up for at least 3 months and diagnosed with thoracolumbar vertebral compression fracture between October 2011 and October 2016, and treated with conservative therapies, such as bed rest and thoraco-lumbar-sacral orthosis. We measured the size of the vertebral LIZ, and fractures on the upper and lower endplates were observed on the initial magnetic resonance imaging. We analyzed the correlation with the increase in compression rate at the last follow-up. Comparisons of the increase in the compression rate were analyzed through a correlation analysis. RESULTS: The larger the size of the LIZ the greater the difference in the increase of the compression rate. The group with the initially LIZ (80%–100%) was significantly increased to 23.87%±17.90% (p=0.007). In case of fracture of upper and lower endplates, an increase in the compression rate was 19.39%±12.59% in the upper endplate fracture, which was significantly higher than that in the absence of endplate fracture (p=0.002). CONCLUSION: The larger the size of the LIZ (T1 image) and superior endplate fracture observed on the initial magnetic resonance imaging after fracture, the greater the increase in the compression rate. In particular, when the size of the LIZ is greater than 80%, the compression rate was significantly increased.

Femoral Shaft Fracture of a Middle-aged Male Adult during Playing Baseball / 대한스포츠의학회지

In general, femur fractures in the younger patient population are the result of high energy trauma, such as motorcycle accidents or traffic accidents. A 43-year-old healthy man presented with painful swelling of his right thigh. Plane radiographs showed short oblique fracture of the femur shaft with comminution. He had no medical history such as osteoporosis or any metabolic bone disorder. He was a healthy man with no smoking and no alcohol drinking, enjoying sports activity such as baseball and football. He was injured during defense time of a baseball game by rapid turning motion to catch a ball. We performed intramedullary interlocking nailing for the femur shaft fracture and the fracture was uneventually healed with no complication. To our knowledge, femur shaft fracture which occurred during playing baseball in a healthy middle-aged man has not been reported in our country. So we report this case with a review of the literature.