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Introduction: Simultaneous bilateral quadriceps tendon rupture is a very rare injury that may be associated with systemic illnesses or drugs. We present a case of bilateral quadriceps tendon rupture in a patient with no identifiable risk factors. Case: Sixty seven year old male patient presented to emergency room with bilateral knee pain after trip and fall from 2 steps on his knees. His physical exam revealed bilateral suprapatellar swelling and tenderness with palpation on both knees and he could not fully actively extend knees. Magnetic resonance imaging revealed bilateral quadriceps tendon rupture. Both knees were immobilized with long leg cast in full extension. Early operative treatment was offered. Conclusion: Diagnosis may be delayed in bilateral quadriceps tendon rupture. Since it is a rare injury emergency medicine physicians should be familiar with symptoms and signs of it to diagnose it early and prevent disability.

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This study aimed to investigate thiol-disulfide balance in patients with renal colic who were frequently referred to emergency services and also to discuss its potential clinical use.Blood samples were obtained from 32 patients diagnosed with renal colic before treatment in the emergency department. Then, the serum thiol-disulfide levels were measured using a novel method. The patients also underwent a complete blood count test and renal ultrasonography. The thiol-disulfide values were compared statistically between the patient (those with renal colic) and control groups (healthy volunteers).The mean native thiol level was significantly less in the patient group than in the control group. In addition, the disulfide/ native thiol and disulfide/total thiol ratios were significantly higher in the patient group than in the control group (P < 0.05).This study found a significant difference in the thiol-disulfide balance of patients with renal colic compared with healthy volunteers. The mean native thiol and total thiol levels decreased in the patient group. It is believed that these markers may be indicative of inflammation in patients with renal colic.