Journal of orthopaedic science : official journal of the Japanese Orthopaedic Association
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Multicenter Study
Single screw type of lag screw results higher reoperation rate in the osteosynthesis of basicervical hip fracture.
Basicervical hip fractures are relatively rare with greater biomechanical instability compared to the other types of hip fractures. Several studies have reported ambivalent surgical outcomes of basicervical hip fractures. The purpose of this multicenter study was to analyze surgical outcomes of basicervical hip fractures according to the fixation type of proximal femur and lag screw type. ⋯ Basicervical hip fractures treated with osteosynthesis resulted to high rates of surgical complications in this study. However, they could be drastically reduced if CMN with blade type or two integrated screw type were used in the osteosynthesis of basicervical hip fractures.
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The reference values of the Japanese Orthopaedic Association Back Pain Evaluation Questionnaire (JOABPEQ) in patients with lumbar spinal stenosis (LSS) are still unknown. This multicenter cross-sectional survey was performed to determine the reference values and disease-specific characteristics of deterioration of QOL caused by LSS itself, not by aging, through comparison of patients with and without LSS who had an outpatient visit for low back pain by age and sex groups. ⋯ The percentiles of JOABPEQ scores in patients with LSS were clarified and could be used as reference values. Deterioration of QOL caused by LSS itself, not by aging, are characterized by Pain-related disorder, Gait disturbance, Social life disturbance, and Psychological disorders.
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Previous studies have shown that patients with cervical ossification of the posterior longitudinal ligament (OPLL) often have co-existing ossification of the nuchal ligament (ONL). However, no studies have focused on ONL and its relevance to the severity of OPLL or ossification of other spinal ligaments, such as anterior longitudinal ligament (OALL), ligamentum flavum (OLF), and supraspinous/interspinous ligament (OSIL). ⋯ Co-existence of ONL in cervical OPLL patients was associated with the severity of spinal hyperostosis especially in cervical OPLL, OALL, thoracolumbar OALL and OSIL.
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The Japanese Orthopaedic Association Back Pain Evaluation Questionnaire (JOABPEQ) was developed in 2007, including the five domains of Pain-related disorder, Lumbar spine dysfunction, Gait disturbance, Social life disturbance, and Psychological disorder. It is used by physicians to evaluate treatment efficacy by comparing scores before and after treatment. However, the JOABPEQ does not allow evaluation of the severity of a patient's condition compared to the general population at a single time point. Given the unavailability of a standard measurement of back pain, we sought to establish reference scores and interquartile ranges using data obtained from a multicenter, cross-sectional survey taken in Japanese primary care settings. ⋯ Reference scores and interquartile ranges for JOABPEQ were generated based on the data from the examination data. These provide a measurement standard to assess patient perceptions of low back pain at any time point during evaluation or therapy.
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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.