Retrospective study of patellar fractures and damage of accessory soft tissue based on MRI.

BACKGROUND: To better understand the pathophysiological mechanisms of patellar fractures, MRI was utilized to identify the imaging signs of various types of patellar fractures. METHODS: A retrospective study was performed using MRI images of 52 patients with patellar fractures. Observing the development of patellar and femoral morphology and the imaging manifestations of different fracture types, such as fracture displacement, and damage to accessory ligaments, tendons, and meniscus, type of joint cavity effusion, and damage to surrounding accessory bones were identified. RESULTS: There were 21 tangential fractures (40.4%), 8 transverse fractures (15.4%), 8 longitudinal fractures (15.4%), 4 oblique fractures (7.7%), and 11 comminuted fractures (21.2%) among the 52 patients with patellar fracture. Tangential fractures begin at a younger age than the other four forms of fractures. When tangential fractures were compared to other types of fractures, medial patellar retinaculum and anterior and posterior cruciate ligament injuries were statistically significant (P< 0.05). The detection rate of trochlear dysplasia, type II and type III patellar was higher in patients with tangential fractures than in other fractures. CONCLUSIONS: Tangential fractures are less common to cause anterior and posterior cruciate ligament injuries than other types of fractures, but they are more likely to cause medial patellar retinaculum injuries.

Hypereosinophilic syndrome with massive liver infarction: A case report.

RATIONALE: Liver infarction caused only by hepatic artery occlusion is rare. Elevated levels of eosinophils in the blood and tissue can have devastating consequences. PATIENT CONCERNS: Male, 21 years old, presented with persistent abdominal distension and discomfort for more than ten days without an apparent cause. Laboratory findings showed an eosinophil percentage of 32.5% (normal range 0.5%-5%). Computed tomographic angiography of the hepatic artery and its branches did not show any enhancement, only the common hepatic artery was visible. DIAGNOSIS: The patient in this case had a peripheral blood eosinophil count of ≥1.5 × 109/L in multiple examinations over 6 months, and eosinophilic leukemia and secondary causes such as parasitic infections, allergic diseases, or tumors were ruled out, confirming the diagnosis of hypereosinophilic syndrome (HES). INTERVENTIONS: The patients were treated with interventional therapy, glucocorticoid pulse therapy and anti-infection therapy. OUTCOMES: After interventional therapy, glucocorticoid pulse therapy, and anti-infection treatment, the patient was reexamined 2 months later. The CT scan showed that the range of the original infarction in the liver had shrunk compared to before, and the remaining liver had enlarged with good compensation; Laboratory tests improved compared with baseline: eosinophil percentage of 0.1%. LESSONS: This article discusses a rare case of hepatic artery occlusion and liver infarction in a young male patient with HES. The cause of hepatic artery embolism and hepatic infarction may be related to the abnormal increase in eosinophils, which can lead to hypercoagulation and thrombus formation. The article emphasizes the importance of timely diagnosis and treatment of HES to prevent life-threatening thrombotic events and describes the successful management of the patient condition through anticoagulation, anti-infection, liver protection, and glucocorticoid therapy.

Effects of the timing of epibrassinolide spraying on yield and nitrogen use efficiency of wide-belt sowing wheat.

In this study, we investigated the effects of epibrassinolide spraying at different growth stages on grain yield and nitrogen use efficiency (NUE), and uptake efficiency (UPE) of wide-belt sowing wheat. The results showed that epibrassinolide spraying enhanced wheat grain yield by increasing the number of kernels per spike and (or) 1000-kernel weight, and improved NUE by promoting aboveground nitrogen accumulation and improving UPE. However, the magnitudes of such enhancements in yield and NUE differed among spraying times. Spraying epibrassinolide at the erecting and filling stages, jointing and filling stages, erecting, jointing, and filling stages, as well as erecting, flowering, and filling stages, produced the greatest increase in the number of kernels per spike and 1000-kernel weight, which led to substantial yield increases (12.8%-14.0%), and the greatest increase in aboveground nitrogen accumulation, which improved UPE by 16.4%-18.8%, and resulted in a significant improvement in NUE. Therefore, spraying epibrassinolide at the erecting and filling stage or jointing and filling stages could achieve high yield and NUE in wide-belt sowing wheat.