Association between acute pain trajectory and patient-reported outcomes at 6-months following lumbar surgery for patients with lumbar degenerative disease.

Purpose: To investigate the association between acute pain trajectory over one week and patient-reported outcomes (PRO) at 6-months following lumbar surgery in patients with lumbar degenerative disease (LDD).

Methods: Two hundred and fifty-five subjects with LDD who received surgical treatment at our hospital between April 2019 and March 2022. Acute pain trajectory was measured using a pain trajectory calculator to determine an approximate line using the linear least squares method based on pain intensity on postoperative days 1, 3, 5, and 7.

Effect of Residual Pain After Posterior Fusion Surgery for Lumbar Degenerative Disorders on Health-Related Quality of Life: A Two-Year Follow-Up Using Patient-Reported Outcome Measures.

Study Design: This is a prospective cohort study.

Purpose: The present study aimed to investigate the effects of residual pain after fusion surgery for lumbar degenerative diseases on quality of life (QOL).

Overview Of Literature: Residual symptoms after spinal surgery often restrict patients' activities of daily living and reduce their QOL.

Association between trunk extensor strength and gait-induced back pain in the elderly with adult spinal deformity: a cross-sectional study.

Purpose: The purpose of the present study was to investigate the association between quantitatively assessed trunk extensor strength and gait-induced back pain (GIBP) in patients with adult spinal deformity (ASD).

Methods: Ninety-five patients with ASD aged ≥ 50 years who were admitted to our hospital between April 2018 and March 2023 were included in the study. GIBP was evaluated through a 6-minute walking test (6MWT), with GIBP being defined as the occurrence of back pain during the evaluation and inability to complete the test.

Delayed Pyogenic Spondylitis at the Same Level as Rod Fracture After Surgery for Adult Spinal Deformity: A Case Report.

Case: Rod fracture (RF) occurred at L5-S level in a 79-year-old woman 7 months after spinal corrective surgery for adult spinal deformity (ASD). Four years after the surgery, pyogenic spondylitis occurred at the same level as RF. After the reinforcement of broken rods posteriorly, a transperitoneal approach was used for debridement and bone graft.

Cumulated ambulation score in hospitalized patients with osteoporotic vertebral fractures is an important predictor of returning home: a retrospective cohort study.

Unlabelled: Osteoporotic vertebral fractures are recognized as a serious problem in the aging society. In this study, we found that the cumulated ambulation score predicts returning home in patients with osteoporotic vertebral fractures. The cumulated ambulation score is an important piece of information in determining the destination of patients with osteoporotic vertebral fractures.

Novel assessment of physiotherapy outcomes in adults with structural spinal disorders.

Purpose: The aim is to investigate whether a simple prone posture assessment test (P-test) at baseline can be predict the effectiveness of at least 3 months of physiotherapy for adults with structural spinal disorders.

Methods: Seventy-six adults (age 71.0 ± 7.

Effects of uphill and downhill walking on post-traumatic osteoarthritis development in mice.

Using destabilization of the medial meniscus (DMM) to induce models of osteoarthritis (OA), we sought to clarify how flat, uphill and downhill walking affects OA-related inflammation and articular cartilage degeneration. Thirty-two male C57BL/6J mice 7 weeks old underwent DMM surgery in their right knee and sham surgery in their left knee, and were then assigned to either the no walking after DMM group or the flat, uphill or downhill walking after DMM group (n = 8/group). After creating the knee OA model, the mice in the walking groups were subjected to treadmill walking 1 day after surgery, which included walking at 12 m/min for 30 min/day, 7 days/week, at inclines of 0, 20, or -20 degrees.

Minimally Invasive Spinal Fusion Using Percutaneous Pedicle Screw Instrumentation Can Provide a Better Health-Related QOL in Early Stage Than Conventional Methods in the Treatment of Single-Level Degenerative Lumbar Spinal Diseases.

Purpose: To investigate whether the minimally invasive spinal fusion can provide the better outcome than conventional fusion surgery in the treatment of degenerative lumbar spinal diseases.

Patients And Methods: One hundred and thirteen patients who had undergone single-level fusion surgery for degenerative lumbar spinal diseases were examined with a minimum of one-year follow-up. There were 56 men and 57 women with a median age of 70s ranging 47-88.

The association of dynamic spinal alignment on gait endurance of patients with adult spinal deformity: a cross-sectional study.

Purpose: The purpose of this study was to evaluate the gait posture of patients with adult spinal deformity (ASD) using a 3-dimensional motion analysis system (3DMAS) and to investigate whether it affects gait endurance.

Methods: Fifty-one patients with ASD aged 50 years or older who were admitted to our hospital between March 2016 and March 2018 were included in the study. The subjects completed the 6-min walking test, which is an indicator of gait endurance.

Relationship between Lower Limb Pain Intensity and Dynamic Lumbopelvic-Hip Alignment in Patients with Degenerative Lumbar Spinal Canal Stenosis: A Cross-Sectional Study.

Study Design: This cross-sectional study was conducted in a single hospital.

Purpose: To clarify the relationship between lower limb pain intensity and dynamic lumbopelvic-hip alignment in patients with lumbar spinal canal stenosis (LSS), using a three-dimensional (3D) motion analysis system.

Overview Of Literature: Although it is well known that leg symptoms have a close relationship with posture in patients with LSS, the relationship under dynamic conditions, such as gait, remain unclear.

Maximum gait speed and lumbar spinal mobility can affect quality of life in elderly women with lumbar kyphosis.

Background: The site and angle of kyphosis are important factors that affect quality of life (QOL). Lumbar kyphosis, rather than thoracic kyphosis, is reported to affect the QOL in patients with kyphosis. Increased angle of kyphosis in elderly people is associated with a decline in motor and physical functions, and also correlates with reduced QOL.

Hip Extensor Strength Influences Dynamic Postural Changes during Gait in Patients with Adult Spinal Deformity: A Cross-Sectional Study Using Three-Dimensional Motion Analysis.

Study Design: Single-hospital cross-sectional study.

Purpose: The aim of the present study was to investigate the physical functions influencing dynamic postural change in patients with adult spinal deformity (ASD).

Overview Of Literature: Dynamic postural change leading to increased forward lean during gait is a problem in patients with ASD; however, the relationship between this change and trunk and hip extensor strength is unclear.

Formulation of Japanese Orthopaedic Association (JOA) clinical practice guideline for the management of low back pain- the revised 2019 edition.

Background: The latest clinical guidelines are mandatory for physicians to follow when practicing evidence-based medicine in the treatment of low back pain. Those guidelines should target not only Japanese board-certified orthopaedic surgeons, but also primary physicians, and they should be prepared based entirely on evidence-based medicine. The Japanese Orthopaedic Association Low Back Pain guideline committee decided to update the guideline and launched the formulation committee.

Dose-response relationship between spino-pelvic alignment determined by sagittal modifiers and back pain-specific quality of life.

Purpose: To determine whether abnormalities of the sagittal modifiers (SMs) of the Scoliosis Research Society (SRS)-Schwab classification truly reflect back pain (BP)-specific quality of life (QOL), it is necessary to examine their dose-response relationships and to determine clinically impactful thresholds for declines in BP-specific QOL. This study aimed to analyse the continuous dose-response relationship between each SM and BP-specific QOL.

Methods: This cross-sectional study, using data from a Japanese population-based cohort study, included 519 community-dwelling residents aged ≥ 50 years who participated in the annual health examination.

Association between single limb standing test results and healthcare costs among community-dwelling older adults.

Background And Objective: Identifying risks for older adults who will require healthcare resources is critical for the government, healthcare providers, and consumers. The objective of this study was to examine the relationship between the results of the single limb standing (SLS) test and healthcare costs among community-dwelling older adults.

Methods: We used data obtained from a population-based prospective cohort study of the residents of Tadami town in Fukushima Prefecture, Japan.

Clinical outcomes of lumbar diseases specific test in patients who undergo endoscopy-assisted tubular surgery with lumbar herniated nucleus pulposus: an analysis using the Japanese Orthopaedic Association Back Pain Evaluation Questionnaire (JOABPEQ).

Purpose: This study was to evaluate clinical outcomes using a patient-oriented test that scores health-related quality of life (HRQOL) for patients after minimally invasive surgery using microendoscopic discectomy (MED) for lumbar disc hernia. Few studies regarding MED in terms of disease-specific quality of life measures using Japanese Orthopaedic Association Back Pain Evaluation Questionnaire (JOABPEQ) have been published.

Methods: Retrospective analysis of the surgical and clinical outcomes with regard to reducing pain and improving the functional status for 31 patients who underwent MED for lumbar disc hernia was conducted.

Recovery of paraplegia following postoperative epidural hematomas in lumbar canal stenosis surgery by closed kinetic chain (CKC) exercises: A case report.

Rationale: A postoperative spinal epidural hematoma (PSEH) is among the most devastating complications following spine and spinal cord surgery, and it should be considered before performing microendoscopic decompression as part of minimally invasive surgery, since early recovery is one of the advantages of this procedure.

Patient Concerns: A 70-year-old woman with lumbar spinal stenosis at L4-5 underwent tubular surgery with the assistance of endoscopic laminectomy (MEL), but 2 days after the surgery, the patient noticed decreased lower limb sensation and power of the right leg, and she developed numbness from the level of L5 and weakness from the L4, 5 myotome distally.

Diagnoses: An epidural hematoma at the L4-5 surgical site was found on magnetic resonance imaging of the lumbar spine and evacuated operatively.

Tubular surgery with the assistance of endoscopic surgery via a paramedian or midline approach for lumbar spinal canal stenosis at the L4/5 level.

Background: Lumbar spinal canal stenosis surgery has recently improved with the use of minimally invasive techniques. Less invasive procedures have emerged, and microendoscopic decompression through smaller incisions is frequently performed. Tubular surgery with the assistance of endoscopic surgery procedures has led to particularly remarkable changes in surgery, with reduced tissue trauma and morbidity.

Reliability and validity of a novel quality of life questionnaire for female patients with adolescent idiopathic scoliosis: Scoliosis Japanese Questionnaire-27: a multicenter, cross-sectional study.

Background: A progressive deformity associated with adolescent idiopathic scoliosis (AIS) negatively affects a patient's health-related quality of life (HRQOL). Although the Scoliosis Research Society-22 (SRS-22) is the standard measurement tool for assessing HRQOL in patients with AIS, it is partially suboptimal for evaluating HRQOL in Japanese patients with AIS because of cultural differences. The purpose of this study was to develop a novel patient-reported outcome measure for Japanese female patients with AIS and to evaluate the reliability and validity of this questionnaire in comparison with the SRS-22 tool.

Therapeutic efficacy of nonsteroidal anti-inflammatory drug therapy versus exercise therapy in patients with chronic nonspecific low back pain: a prospective study.

Therapy for chronic, nonspecific low back pain is mainly conservative: medication and/or exercise.　Pharmacotherapy, however, has side effects, and the quantities of concomitant drugs in older persons require attention.　Although exercise promises improved function, its use to alleviate pain is controversial.

Classifying patients with lumbar spinal stenosis using painDETECT: a cross-sectional study.

Background: The pathological mechanisms of lumbar spinal stenosis are unclear. Family doctors in the primary care setting may perform medical examinations of patients with lumbar spinal stenosis. Our aim was to use the painDETECT questionnaire to quantify the pathological mechanisms of low back pain and/or leg pain caused by lumbar spinal stenosis.

Multidirectional flexibility of the spine following posterior decompressive surgery after single-level cervical disc arthroplasty: an in vitro biomechanical investigation.

Study Design: In vitro human cadaveric biomechanical study.

Objective: This study quantifies the multidirectional flexibility of the spine following laminoplasty and laminectomy after cervical disc arthroplasty.

Summary Of Background Data: Posterior decompressive surgery may be used to treat recurrence of myeloradiculopathy following disc arthroplasty.