[Dog saliva causes rare and life-threatening infection].

Background: Hemophagocytic lymphohistiocytosis (HLH) is a rare but life-threatening syndrome. Due to its heterogeneous presentation, nonspecific findings, and rarity, this diagnosis is often initially overlooked. This contributes to the high mortality.

Clinical and Radiographic Outcomes of Anterior Cruciate Ligament Reconstruction With Hamstring Tendon Graft and Femoral Cortical Button Fixation at Minimum 20-Year Follow-up.

Background: The short-term outcomes of anterior cruciate ligament (ACL) reconstruction with bone-patellar tendon-bone or hamstring tendon (HT) graft are excellent with good clinical stability and patient-reported outcomes. Although some studies have reported the long-term outcomes of bone-patellar tendon-bone graft ACL reconstruction, few have reported the outcomes of HT graft ACL reconstruction.

Purpose: To assess clinical and radiographic outcomes of HT graft ACL reconstruction with femoral cortical button fixation at a minimum 20-year follow-up.

The Role of Patient Characteristics in the Success of Nonoperative Treatment of Anterior Cruciate Ligament Injuries.

Background: Anterior cruciate ligament (ACL) tears can either be treated nonoperatively with physical therapy and then treated operatively if persistent instability is present, or be directly treated operatively. Advantages of early ACL reconstruction surgery include shorter time from injury to surgery and potentially fewer meniscal injuries, but performing early ACL reconstruction in all patients results in surgery in patients who might not need ACL reconstruction. It is important to assess in which patients nonoperative treatment is successful and which patients will require ACL reconstruction and thus might be better treated surgically in an earlier phase.

[A boy with acute pain in his right buttock].

A 14-year-old boy presented to the emergency department with pain in his right buttock after a breakdance move. He got injured while simultaneously hyperflexing his hip and extending his knee. Upon physical examination he had tenderness over his right ischial tuberosity and an inability to perform combined hip extension and knee flexion.

[Pain when flexing the elbows].

A 17-year-old boy presented with paraesthesia of the fourth and fifth finger and pain in both lower arms, radiating from the elbow down to the fingers. Symptoms were induced by flexing the elbows, concomitantly with a snapping ulnar nerve. There were no signs of tendinitis, or loss of strength or sensation.