Journal of orthopaedic science : official journal of the Japanese Orthopaedic Association
-
Multicenter Study
Treatment status and radiographic features of patients with atypical femoral fractures.
The Japanese Orthopaedic Association (JOA) has been surveying approximately 3000 orthopedic surgery hospitals and clinics with inpatient facilities nationwide to collect information on atypical femoral fractures (AFFs) and patient characteristics since 2010. The present study aims to examine radiographic images and clarify the relationship between radiographic and patient characteristics of patients with AFF and treatment status. ⋯ Radiographic beaking was observed more frequently in patients treated with BPs than in patients not treated with BPs.
-
The Great East Japan Earthquake (GEJE) and Tsunami devastated the northeastern coast of Japan on March 11, 2011. This study aimed to determine whether sociopsychological factors, such as sleep disturbance and psychological distress, influenced new-onset subjective knee pain in survivors during the post-disaster phase of the GEJE. ⋯ This is the first study to indicate an association between sleep disturbance and new-onset subjective knee pain among survivors of the GEJE. 247/300.
-
Review Comparative Study
State-of-the-art transforaminal percutaneous endoscopic lumbar surgery under local anesthesia: Discectomy, foraminoplasty, and ventral facetectomy.
Transforaminal (TF) percutaneous endoscopic surgery for the lumbar spine under the local anesthesia was initiated in 2003 in Japan. Since it requires only an 8-mm skin incision and damage of the paravertebral muscles would be minimum, it would be the least invasive spinal surgery at present. At the beginning, the technique was used for discectomy; thus, the procedure was called PELD (percutaneous endoscopic lumbar discectomy). ⋯ It was called the percutaneous endoscopic lumbar foraminoplasty (PELF). More recently, this technique was applied to decompress the lateral recess stenosis, and the technique was named percutaneous endoscopic ventral facetectomy (PEVF). In this review article, we explain in detail the development of the surgical technique of with time with showing our typical cases.
-
Comparative Study
Efficacy of intraoperative lumbar subarachnoid drainage for prevention of cerebrospinal fluid leak after spinal cord tumor resection.
Postoperative cerebrospinal fluid (CSF) leakage is a major clinical problem, and prevention of CSF leakage at the surgical site is an important issue. The goal of the study was to evaluate the efficacy of intraoperative lumbar subarachnoid drainage (LSAD) for prevention of CSF leakage after spinal cord tumor resection. ⋯ Lumbar subarachnoid CSF drainage was associated with a significant decrease in postoperative CRP. In cases in which artificial dura mater was used and in surgery for a cervical lesion, drainage was useful to prevent subcutaneous CSF accumulation.
-
Multicenter Study
Clinical experience with three-dimensional printing techniques in orthopedic trauma.
To report our experiences with the use of three-dimensional (3D) printing in the field of orthopedic trauma. ⋯ In our experience, 3D printing technique provided surgeons with improved understanding of the fracture pattern and anatomy and was effectively used for preoperative planning, education of surgical trainees, and performing simulations to improve intra-operative technical outcomes.