{
  "abstract": "A 59-year-old man presented to the emergency department with mild left lower leg pain and numbness. The symptoms began after a fishing competition during which he had been wearing a knee brace. He had a history of chronic left knee pain that had been treated with local injections. The clinical appearance of his lower limbs on presentation is shown ( figure 1).",
  "authors": [
    {
      "affiliations": [
        "Department of Emergency Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan"
      ],
      "name": "Yi-Chen Chiu"
    },
    {
      "affiliations": [
        "Department of Emergency Medicine, Kaohsiung Medical University Gangshan Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan",
        "Management Office, Kaohsiung Medical University Gangshan Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan"
      ],
      "name": "Pei-Wen Chao"
    },
    {
      "affiliations": [
        "Department of Emergency Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan",
        "Biomedical Artificial Intelligence Academy, Kaohsiung Medical University, Kaohsiung, Taiwan"
      ],
      "name": "Chi-Wei Chen"
    }
  ],
  "title": "Man with acute leg pain and numbness",
  "uid": "af08aff9-6924-59e4-a39b-c1a12cb87992"
}