Adult Spinal Deformity

This will be a randomized double-blind placebo controlled clinical trial to determine if supplementing with essential amino acids (EAAs) for two weeks prior to, and 3 months after corrective spinal surgery in adults with spinal deformity can stimulate greater muscle protein turnover and whole-body protein balance, and enhance recovery after surgery when compared to a calorie matched placebo.

Evaluate surgical treatment outcomes and identify best practice guidelines for complex adult spinal deformity (ASD) patients treated with minimally invasive approach, including radiographic and clinical outcomes, surgical and postoperative complications, risk factors for and revision surgery rates, and the role of standard work to improve patient outcomes and reduce surgical and postoperative complications.

Prospective, Multicenter, Case-Control Analysis of the VersaTie Posterior Fixation System to Prevent Proximal Junctional Failure in Long Posterior Spinal Fusion Constructs for Adult Patients

Evaluate surgical treatment outcomes and identify best practice guidelines for complex adult spinal deformity (ASD) patients, including radiographic and clinical outcomes, surgical and postoperative complications, risk factors for and revision surgery rates, and the role of standard work to improve patient outcomes and reduce surgical and postoperative complications.

The goal of this feasibility study is to explore the use of wireless continuous vital sign monitoring in an orthopaedic setting among orthopaedic nurses and patients undergoing adult spinal deformity surgery. In addition to the standard care National Early Warning Score the participants in this study will be monitored by CPC12S a wearable sensor that is worn on the chest using electrodes measuring electrocardiography single lead (ECG), Heart rate, respiratory rate, SpO2, blood pressure and temperature. Main hypotheses: The use of wireless continuous vital sign monitoring in daily clinical practice for patients undergoing ASD surgery is feasible in terms of increased acceptability among orthopeadic surgical nurses measured over 12 months with a response rate of at least 80% with an average score of ≥5 at the last measurement in each of the four dimensions of the USE questionnaire: Usefulness, ease of use, ease of learning and satisfaction. The following parameters will be evaluated: Primary outcome: 1. The feasibility in terms of acceptability of the concept of wCVSM among orthopedic surgical ward nurses. Secondary outcomes: 2. The feasibility in terms of acceptability of the concept of wCVSM in patients undergoing ASD surgery. 3. The technical fidelity of wCVSM, assessed by data collected of vital signs, display of alerts to staff nurses and response to the alerts. 4. The frequency of vital sign deviations in patients after ASD surgery using wCVSM compared to NEWS2. 5. Clinical outcomes of patients undergoing ASD surgery including surgical complications, reinterventions, ICU admissions, unplanned ward transfer, and admissions to another department.

This cross-sectional observational study aims to quantitatively compare three-dimensional gait parameters, surface electromyography (EMG) patterns, and radiological parameters among patients with different degenerative spinal conditions-including lumbar disc herniation (LDH), lumbar spinal stenosis (LSS), lumbar sagittal imbalance (LSI), degenerative lumbar scoliosis (DLS), and cervical spondylotic myelopathy (CSM)-alongside a healthy control group. The analysis focuses on spatiotemporal gait characteristics (step length, stride length, cadence), lower limb kinematics and kinetics (hip/knee/ankle joint angles, moments, and powers during stance and swing phases), and surface EMG amplitudes (thoracic erector spinae, multifidus, gluteus maximus, and rectus abdominis muscles) during standardized walking tasks. Additionally, radiological parameters (e.g., pelvic incidence-lumbar lordosis mismatch, C2-C7 sagittal vertical axis, coronal Cobb angle) will be correlated with gait and muscle activation deviations. The study employs motion capture systems, force plates, and high-density EMG to objectively differentiate disease-specific movement impairments. Findings from this study may establish biomechanical and neuromuscular signatures for each degenerative condition, providing a framework for personalized rehabilitation strategies, gait retraining, and surgical outcome assessment in spinal disorders. Comparative analysis with healthy controls will further elucidate pathological alterations in gait and muscle recruitment patterns caused by degenerative spinal diseases.

Surgical outcomes, including radiographic outcomes, patient-reported outcomes, postoperative complications, and revision surgery rates, were compared in patients with adult spinal deformity who underwent correction surgery with reference to our pelvic incidence-dependent (PI-dependent) clustering of sagittal spinal alignment and existing standards (sagittal age-adjusted score \[SAAS\], global alignment and proportion \[GAP\] score, and Roussouly classification). Our findings may provide tangible guidance for surgical decision-making in ASD.