Publications by authors named "Mikkel Osterheden Andersen"

Introduction: Back pain is common in idiopathic scoliosis. The aim of this study was to study known genetic variants associated with pain in individuals with idiopathic scoliosis.

Methods: We included 1442 individuals with juvenile or adolescent idiopathic scoliosis from Sweden and Denmark.

View Article and Find Full Text PDF

Purpose: To characterize the type, content, and results of care interventions that support spine surgery patients in their early post-discharge recovery.

Methods: This systematic review was conducted according to PRISMA guidelines. The literature search was conducted in March 2022 (updated in May 2023) in MEDLINE (Ovid), EMBASE (Ovid), CINAHL (Ebsco), PsycINFO (Ovid), and Scopus.

View Article and Find Full Text PDF

Introduction: Patients with lumbar spinal stenosis may have poor balance, decreased physical function and problems maintaining physical activity levels due to radiculopathy. Decompressive surgery is often indicated if conservative management fails to achieve a satisfactory clinical outcome. While surgical management has proven effective at treating radiculopathy, and patients report increased physical function postoperatively, objective measures of postural control and physical activity remain sparse.

View Article and Find Full Text PDF

Introduction: Although most surgeons treating patients with lumbar spinal stenosis (LSS) believe that surgical treatment is superior to conservative measures, systematics reviews have concluded that no solid evidence support this.

Research Question: To compare change at 1-year of walking ability, health-related quality of life, leg and back pain in patients with symptomatic LSS referred to a spine surgery clinic who opted for surgery and those who did not.

Material And Methods: The study included 149 operated and 149 non-operated patients seen by spine surgeons and diagnosed with LSS.

View Article and Find Full Text PDF
Article Synopsis
  • Decompression surgery for lumbar spinal stenosis (LSS) is the most common spine surgery in Denmark, with around 75% of patients experiencing pain relief after one year, but 25% seeing little improvement.
  • A predictive decision support tool called PROPOSE was developed to aid discussions between doctors and LSS patients by presenting the pros and cons of surgery.
  • Evaluation of PROPOSE showed good performance in predicting outcomes for walking distance and leg pain, confirming its effectiveness in real-world clinical settings.
View Article and Find Full Text PDF

Osteolytic bone disease is present in about 80% of patients with multiple myeloma at the time of diagnosis. Managing bone disease in patients with multiple myeloma is a challenge and requires a multi-faceted treatment approach with medication, surgery, and radiation. The established treatments with intravenous or subcutaneous antiresorptives can cause debilitating adverse events for patients, mainly osteonecrosis of the jaw, which, traditionally, has been difficult to manage.

View Article and Find Full Text PDF

Study Design: Quantitative survey study is the study design.

Objectives: The study aims to develop a model for the factors that drive or impede the use of an artificial intelligence clinical decision support system (CDSS) called PROPOSE, which supports shared decision-making on the choice of treatment of ordinary spinal disorders.

Methods: A total of 62 spine surgeons were asked to complete a questionnaire regarding their behavioral intention to use the CDSS after being introduced to PROPOSE.

View Article and Find Full Text PDF

Introduction: Instrumented lumbar fusion has been used as surgical treatment for severe disability with associated low back pain. The overall effect and risks of the most commonly used instrumented lumbar fusion techniques are controversial. The objective of the study was to describe clinical and patient-reported outcomes in patients undergoing single-level instrumented interbody fusion surgery with either posterior or transforaminal lumbar interbody fusion.

View Article and Find Full Text PDF

Background: In Scandinavia, spinal fusion is frequently performed without instrumentation, as use of instrumentation in the elderly can be complicated by poor bone quality and the risk of screw pull-out. However, uninstrumented fusion carries the risk of nonunion. We performed a randomized controlled trial in an attempt to determine if use of instrumentation leads to better outcomes and fusion rates when spinal fusion is performed for degenerative spondylolisthesis in the elderly.

View Article and Find Full Text PDF

Background: Despite advances in surgical techniques and diagnostics, some patients remain unsatisfied with the result following spine surgery. One way to improve patient satisfaction may be found in better alignment of expectations. Prognostic tools might prove useful in strengthening surgeon-patient communication prior to surgery.

View Article and Find Full Text PDF

Purpose: We hypothesized that unilateral leg pain following surgical treatment of lumbar disc herniation (LDH) is associated with an increase in the glucose metabolism of the contralateral thalamus.

Methods: Patients scheduled for surgery due to LDH underwent F-fluorodeoxyglucose positron emission tomography/computed tomography less than two weeks prior to surgery. Their thalamic FDG uptake was measured and expressed as the mean and partial volume corrected mean standardized uptake values (SUVmean and cSUVmean).

View Article and Find Full Text PDF
Article Synopsis
  • The study aimed to determine if spinal decompression surgery improves sagittal balance in older patients with spinal stenosis.
  • The researchers analyzed preoperative and postoperative radiographs and patient-reported outcomes in 45 patients aged over 60 who underwent different types of decompression surgery.
  • Results showed a significant improvement in sagittal balance measurements, specifically in SVA and PI-LL mismatch, along with notable enhancements in patient-reported outcomes related to pain and disability.
View Article and Find Full Text PDF

To provide an up-to-date description of knowledge and pitfalls related to the classification, definition and grading of Modic changes (MC) visualized on magnetic resonance imaging (MRI). State-of-the-art review of current knowledge regarding the definition and grading of MC on MRI. MC on MRI have been reported to be associated with low back pain and disability.

View Article and Find Full Text PDF

Study Design: Propensity-matched retrospective study of patients prospectively enrolled in Danespine.

Objective: The aim of this study was to report 5-year patient reported outcome in lumbar spinal stenosis (LSS) patients who underwent wide laminectomy (WL), segmental bilateral laminotomies (SBL), or unilateral hemilaminectomy (UHL) with bilateral decompression.

Summary Of Background Data: The optimal procedure for LSS remains controversial.

View Article and Find Full Text PDF

Introduction: Multiple myeloma (MM) is a plasma cell cancer where about 1/3 of the patients present with pathological fractures at the time of diagnosis. Despite treatment, the majority of the patients will develop additional fractures. Because survival and prognosis has improved significantly over the last two decades for patients with MM, there is an increased need to focus on optimal fracture treatment.

View Article and Find Full Text PDF
Article Synopsis
  • The study aimed to explore factors linked to poor outcomes after coccygectomy in patients with chronic coccydynia and coccyx instability.
  • Data was analyzed from 134 patients who underwent the surgery, focusing on various demographic and health factors before and after the procedure.
  • The results showed no significant associations between these factors and poor outcomes, indicating that the studied parameters should not deter the surgery in similar patients.
View Article and Find Full Text PDF

Introduction: Surgical instrumentation in children with adolescent idiopathic scoliosis (AIS) is performed early in life and the implants are left in situ for the rest of the patient's life. Concern has been raised regarding persistent elevated levels of serum metal ions, but only a few studies on the topic have been published. The aim of this study was to compare the levels of serum metal ions in patients with AIS treated with either Harrington rod instrumentation or bracing.

View Article and Find Full Text PDF

Study Design: Retrospective/prospective study.

Objective: Models based on preoperative factors can predict patients' outcome at 1-year follow-up. This study measures the performance of several machine learning (ML) models and compares the results with conventional methods.

View Article and Find Full Text PDF

Infection has been proposed as a cause of back pain in individuals with Modic changes. This review summarises the knowledge on this topic in Scandinavia. A Norwegian randomized controlled trial could not replicate results in favor of antibiotic treatment for such patients.

View Article and Find Full Text PDF

This review gives a summary of osteoarthritis (OA) of the spine involving the facet and the sacroiliac joints. Facet joint OA is widely prevalent in adults, and is thought to be a common cause of back and neck pain. The prevalence of facet and SI-joint mediated pain increases with age, suggesting that OA might have a particularly important role in older adults with spinal pain.

View Article and Find Full Text PDF

Study Design: Validation study.

Objectives: To translate and validate the Zurich Claudication Questionnaire (ZCQ) into a Danish version of the disease-specific patient-reported outcome measure (PROM) for patients with lumbar spinal stenosis (LSS), which assesses symptom severity, physical function, and satisfaction after surgery.

Method: Translation into a Danish version of the original questionnaire by back- and forward-translating the questionnaire and finally transforming a prefinal test version into a final and cross-cultural adapted version.

View Article and Find Full Text PDF

Study Design: Longitudinal cohort study with 13-year follow-up.

Objective: To assess whether long-term disability is associated with baseline degenerative magnetic resonance imaging (MRI) findings in patients with low back pain (LBP).

Methods: In 2004-2005, patients aged 18 to 60 years with chronic LBP were enrolled in a randomized controlled trial and lumbar MRI was performed.

View Article and Find Full Text PDF

The lytic bone disease is a hallmark of multiple myeloma, being present in about 80% of patients with newly diagnosed MM, and in more during the disease course. The myeloma associated bone disease (MBD) severely affects the morbidity and quality of life of the patients. MBD defines treatment demanding MM.

View Article and Find Full Text PDF

Study Design: A registry-based comparative cohort study with 2-year follow-up.

Objective: To assess whether Modic changes (MCs) are associated with health-related quality of life, long-term physical disability, back- or leg pain after discectomy.

Summary Of Background Data: Previous studies have failed to show a clinically significant association between MCs and patient-reported outcomes (PROs) after discectomy.

View Article and Find Full Text PDF