Lumbar Spinal Stenosis with Degenerative Spondylolisthesis Treated with Decompression Alone. A Cohort of 346 Patients at a Large Spine Unit. Clinical Outcome, Complications and Subsequent Surgery
Conclusion. DA provides good clinical outcome at 2-year follow-up in patients with LSS and DS with low rate of intra- and postoperative complications and subsequent surgery. Our data supports the evidence that DA is effective and safe for LSS with DS. Level of Evidence: 3 (Source: Spine)
Source: Spine - February 27, 2022 Category: Orthopaedics Tags: SURGERY Source Type: research

Can Postoperative Distal Adding-On be Predicted in Lenke Type 1B and 1C Curves with Intraoperative Radiographs?
Conclusion. The LIV selected at more cranial to the LTV may be a risk factor for postoperative DA in Lenke Type 1B and 1C curves. Moreover, it was suggested that LIV extension might be considered when the first disc's angulation below the LIV is>3° in intraoperative radiographs. Level of Evidence: 3 (Source: Spine)
Source: Spine - February 27, 2022 Category: Orthopaedics Tags: DEFORMITY Source Type: research

Low-Density Pedicle Screw Constructs Are Associated with Lower Incidence of Proximal Junctional Failure in Adult Spinal Deformity Surgery
Study Design. Retrospective cohort study. Objective. Determine whether screws per level and rod material/diameter are associated with incidence of proximal junctional kyphosis (PJF). Summary of Background Data. PJF is a common and particularly adverse complication of adult spinal deformity (ASD) surgery. There is evidence that the rigidity of posterior spinal constructs may impact risk of PJF. Methods. Patients with ASD and 2-year minimum follow-up were included. Only patients undergoing primary fusion of more than or equal to five levels with lower instrumented vertebrae (LIV) at the sacro-pelvis ...
Source: Spine - February 27, 2022 Category: Orthopaedics Tags: DEFORMITY Source Type: research

Comparing and Contrasting the Clinical Utility of Sagittal Spine Alignment Classification Frameworks: Roussouly: Versus: SRS-Schwab
Conclusion. Isolated restoration per the Roussouly system was not associated with superior outcomes. Patients who both matched Roussouly type and improved in Schwab modifiers had superior patient-reported outcomes at 2-years. Concurrent consideration of both systems may offer utility in establishing optimal realignment goals. Level of Evidence: 3 (Source: Spine)
Source: Spine - February 27, 2022 Category: Orthopaedics Tags: DEFORMITY Source Type: research

Assessment of Adult Spinal Deformity Complication Timing and Impact on 2-Year Outcomes Using a Comprehensive Adult Spinal Deformity Classification System
Conclusion. Surgeons should recognize that long-term complications have a substantial negative impact on HRQoL, and should carefully monitor for implant-related and radiographic complications over long-term follow-up. Level of Evidence: 4 (Source: Spine)
Source: Spine - February 27, 2022 Category: Orthopaedics Tags: DEFORMITY Source Type: research

Reply: Underutilization of Social Determinants of Health Billing Codes May Bias Surgical Disparities Research
No abstract available (Source: Spine)
Source: Spine - February 8, 2022 Category: Orthopaedics Tags: LETTER Source Type: research

Single Impact Injury of Vertebral Endplates Without Structural Disruption, Initiates Disc Degeneration Through Piezo1 Mediated Inflammation and Metabolism Dysfunction
Study Design. In vitro experimental study. Objective. To establish an axial impact injury model of intervertebral disc (IVD) and to investigate if a single impact injury without endplate structural disruption could initiate intervertebral disc degeneration (IDD), and what is the roles of Piezo1 in this process. Summary of Background Data. Although IDD process has been confirmed to be associated with structural failures such as endplate fractures, whether a single impact injury of the endplates without structural disruption could initiate IDD remains controversial. Previous studies reported that Piezo1 med...
Source: Spine - February 8, 2022 Category: Orthopaedics Tags: BASIC SCIENCE Source Type: research

Mapping of Venous Sinus Anatomy and Occipital Bone Thickness for Safe Screw Placement in 100 Patients with 46,200 Standardized Measurements Using Computed Tomography Angiography
Conclusion. There is a limited area of the occipital bone with thicknesses for enough screw purchase. Previous studies have shown 8 mm as the minimum screw length to reduce the risk of implant failure. In our analysis, only “T”-shaped plates had configurations with thicknesses>8 mm for each screw hole. For every screw hole in the analyzed occipital plates, there was a possibility of VS presence ranging from 8% to 33%. Level of Evidence: 5 (Source: Spine)
Source: Spine - February 8, 2022 Category: Orthopaedics Tags: ANATOMY Source Type: research

Association and Risk of Axial Spondyloarthritis of Scoliosis Patients: A Database Study
Study Design. Retrospective longitudinal cohort study. Objective. To investigate the incidence and risk of axial spondyloarthritis (axSpA) in patients with scoliosis in Taiwan. Summary of Background Data. Scoliosis and axSpA causes back pain which reduces quality of life in many patients. Both scoliosis and axSpA had attracted numerous research attention, but the association between the two was hardly known. Methods. In this retrospective study, the data of 25,566 patients were obtained from Taiwan's National Health Insurance Research Database. We identified patients diagnosed with scoliosis and in...
Source: Spine - February 8, 2022 Category: Orthopaedics Tags: EPIDEMIOLOGY Source Type: research

Texture Analysis of Magnetic Resonance Images Enables Phenotyping of Potentially Painful Annular Fissures
Conclusion. Standard MR-images contains fissure information associated to pain that can be depicted with image features, enabling non-invasive phenotyping of potentially painful annular fissures. Level of Evidence: 2 (Source: Spine)
Source: Spine - February 8, 2022 Category: Orthopaedics Tags: DIAGNOSTICS Source Type: research

An Objective Assessment of Lumbar Spine Degeneration/Ageing Seen on MRI Using An Ensemble Method—A Novel Approach to Lumbar MRI Reporting
Conclusion. It would appear that the intervertebral discs, and many other structures that are subjected to loading in and around the lumbar spine change their lumbar MRI appearance in a predictable way with increasing age. ARC on lumbar MRI can be assessed to predict an “expected age” for the subject. Level of Evidence: 2 (Source: Spine)
Source: Spine - February 8, 2022 Category: Orthopaedics Tags: DIAGNOSTICS Source Type: research

Cervical Sagittal Alignment in Patients with Cervical Spondylotic Myelopathy: An Observational Study From the Canadian Spine Outcomes and Research Network
Study Design. Prospective cohort study. Objective. Among patients with CSM, we aimed to evaluate the extent to which: (1) Preoperative cervical sagittal alignment is associated with health-related quality of life, function, and symptoms; (2) Surgery leads to changes in cervical sagittal alignment; and (3) Postoperative cervical sagittal alignment is associated with health-related quality of life, function, and symptoms at 12 months of follow-up. Summary of Background Data. The importance of maintaining or improving cervical sagittal alignment in the surgical management of patients with CSM has not been ...
Source: Spine - February 8, 2022 Category: Orthopaedics Tags: CERVICAL SPINE Source Type: research

Insufficient Recovery From C5 Palsy Following Anterior Cervical Decompression and Fusion
Study Design. Retrospective study. Objective. To determine the risk factors for insufficient recovery from C5 palsy (C5P) following anterior cervical decompression and fusion (ADF). Summary of Background Data. Postoperative C5P is a frequent but unsolved complication following cervical decompression surgery. Although most patients gradually recover, some recover only partially. When we encounter new-onset C5P following ADF, the question that often arises is whether the palsy will sufficiently resolve. Methods. We retrospectively reviewed consecutive patients who underwent ADF at our institution. We...
Source: Spine - February 8, 2022 Category: Orthopaedics Tags: CERVICAL SPINE Source Type: research

Patient Characteristics, Injury Types, and Costs Associated with Secondary Over-Triage of Isolated Cervical Spine Fractures
Study Design. Retrospective cohort. Objective. To aim of this study was to identify patient variables, injury characteristics, and costs associated with operative and non-operative treatment following inter-facility transfer of patients with isolated cervical spine fractures. Summary of Background Data. Patients with isolated cervical spine fractures are subject to inter-facility transfer for surgical assessment, yet are often treated nonoperatively. The American College of Surgeons’ benchmark rate of “secondary over-triage” is (Source: Spine)
Source: Spine - February 8, 2022 Category: Orthopaedics Tags: CERVICAL SPINE Source Type: research

Facet Joint Opening on Computed Tomography Is a Predictor of Poor Clinical Outcomes After Minimally Invasive Decompression Surgery for Lumbar Spinal Stenosis
Conclusion. FJO at both index decompression level and multiple level were predictors of poor outcomes; patients with FJOs require careful surgical planning or special follow-up. Level of Evidence: 3 (Source: Spine)
Source: Spine - February 8, 2022 Category: Orthopaedics Tags: SURGERY Source Type: research