Adam S. Kanter
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View article: Use of an Expert Panel for Symptomatic Patients With Grade I Degenerative Lumbar Spondylolisthesis: A Randomized Clinical Trial
Use of an Expert Panel for Symptomatic Patients With Grade I Degenerative Lumbar Spondylolisthesis: A Randomized Clinical Trial Open
BACKGROUND AND OBJECTIVES: The appropriate utilization of lumbar fusion when performing laminectomy for lumbar spondylolisthesis is uncertain. The objective was to determine whether the use of a surgical expert review panel recommending fu…
View article: Patients May Return to Work Sooner After Laminoplasty: Occupational Outcomes of the Cervical Spondylotic Myelopathy Surgical Trial
Patients May Return to Work Sooner After Laminoplasty: Occupational Outcomes of the Cervical Spondylotic Myelopathy Surgical Trial Open
BACKGROUND AND OBJECTIVES: Return-to-work (RTW) is an important outcome for employed patients considering surgery for cervical spondylotic myelopathy (CSM). We conducted a post hoc analysis of patients as-treated in the Cervical Spondyloti…
View article: Preinjury Frailty Predicts 1-Year Mortality in Older Adults With Traumatic Spine Fractures
Preinjury Frailty Predicts 1-Year Mortality in Older Adults With Traumatic Spine Fractures Open
BACKGROUND AND OBJECTIVES: Nearly 30% of older adults presenting with isolated spine fractures will die within 1 year. Attempts to ameliorate this alarming statistic are hindered by our inability to identify relevant risk factors. The prim…
View article: Atypical cervical radiculopathy presenting with brachioradial pruritus: illustrative cases
Atypical cervical radiculopathy presenting with brachioradial pruritus: illustrative cases Open
BACKGROUND Brachioradial pruritus (BRP) is a rare form of chronic dysesthesia characterized by persistent itching, burning, or tingling commonly involving the dorsolateral upper extremities. Although the exact pathophysiology remains uncle…
View article: Outcomes of circumferential minimally-invasive technique vs open technique in adult spinal deformity surgery patients over 80 years of age: A propensity-matched analysis
Outcomes of circumferential minimally-invasive technique vs open technique in adult spinal deformity surgery patients over 80 years of age: A propensity-matched analysis Open
View article: Transitioning from lateral to the prone transpsoas approach: flatten the learning curve by knowing the nuances
Transitioning from lateral to the prone transpsoas approach: flatten the learning curve by knowing the nuances Open
Prone transpsoas lateral lumbar interbody fusion is the newest frontier in surgical approach to the lumbar spine. Prone positioning facilitates segmental lordosis and facile posterior segmental fixation. However, even in experienced hands,…
View article: In Vivo Evidence of Early Instability and Late Stabilization in Motion Segments Immediately Superior to Anterior Cervical Arthrodesis
In Vivo Evidence of Early Instability and Late Stabilization in Motion Segments Immediately Superior to Anterior Cervical Arthrodesis Open
Study Design. Prospective cohort study. Objective. The aim was to identify patient factors that affect adjacent segment kinematics after anterior cervical discectomy and fusion (ACDF) as measured by biplane radiography. Summary of Backgrou…
View article: Operative Outcomes After Cervical Diffuse Idiopathic Skeletal Hyperostosis Fracture in the Elderly
Operative Outcomes After Cervical Diffuse Idiopathic Skeletal Hyperostosis Fracture in the Elderly Open
BACKGROUND: Cervical diffuse idiopathic skeletal hyperostosis (DISH) fractures are frequently unstable and carry significant risk of neurologic injury and death. Most patients with DISH fractures are elderly (>70 years) with significant co…
View article: Subsidence after lateral lumbar interbody fusion using a 3D-printed porous titanium interbody cage: single-institution case series
Subsidence after lateral lumbar interbody fusion using a 3D-printed porous titanium interbody cage: single-institution case series Open
OBJECTIVE Cage subsidence is a well-known phenomenon after lateral lumbar interbody fusion (LLIF), occurring in 10%–20% of cases. A 3D-printed porous titanium (pTi) cage has a stiffness that mimics the modulus of elasticity of native verte…
View article: Clinical Validation of a Novel Musculoskeletal Modeling Framework to Predict Postoperative Sagittal Alignment
Clinical Validation of a Novel Musculoskeletal Modeling Framework to Predict Postoperative Sagittal Alignment Open
Study Design. A retrospective radiographic and biomechanical analysis of 108 thoracolumbar fusion patients from two clinical centers. Objective. This study aimed to determine the validity of a computational framework for predicting postope…
View article: Isolated traumatic occipital condyle fractures: Is external cervical orthosis even necessary?
Isolated traumatic occipital condyle fractures: Is external cervical orthosis even necessary? Open
Background: Occipital condyle fractures (OCFs) have been reported in up to 4–16% of individuals suffering cervical spine trauma. The current management of OCF fractures relies on a rigid cervical collar for 6 weeks or longer. Here, we calc…
View article: Surgery-related Factors Do Not Affect Short-term Adjacent Segment Kinematics After Anterior Cervical Arthrodesis
Surgery-related Factors Do Not Affect Short-term Adjacent Segment Kinematics After Anterior Cervical Arthrodesis Open
Study Design. Prospective cohort study. Objective. The aim of this study was to identify surgical factors that affect adjacent segment kinematics after anterior cervical discectomy and fusion (ACDF) as measured by biplane radiography. Summ…
View article: Effect of Ventral vs Dorsal Spinal Surgery on Patient-Reported Physical Functioning in Patients With Cervical Spondylotic Myelopathy
Effect of Ventral vs Dorsal Spinal Surgery on Patient-Reported Physical Functioning in Patients With Cervical Spondylotic Myelopathy Open
ClinicalTrials.gov Identifier: NCT02076113.
View article: Factors affecting approach selection for minimally invasive versus open surgery in the treatment of adult spinal deformity: analysis of a prospective, nonrandomized multicenter study
Factors affecting approach selection for minimally invasive versus open surgery in the treatment of adult spinal deformity: analysis of a prospective, nonrandomized multicenter study Open
OBJECTIVE Surgical decision-making and planning is a key factor in optimizing outcomes in adult spinal deformity (ASD). Minimally invasive spinal (MIS) strategies for ASD have been increasingly used as an option to decrease postoperative m…
View article: Impact of endplate-implant area mismatch on rates and grades of subsidence following stand-alone lateral lumbar interbody fusion: an analysis of 623 levels
Impact of endplate-implant area mismatch on rates and grades of subsidence following stand-alone lateral lumbar interbody fusion: an analysis of 623 levels Open
OBJECTIVE Stand-alone lateral lumbar interbody fusion (LLIF) is a useful minimally invasive approach for select spinal disorders, but implant subsidence may occur in up to 30% of patients. Previous studies have suggested that wider implant…
View article: Less invasive spinal deformity surgery: the impact of the learning curve at tertiary spine care centers
Less invasive spinal deformity surgery: the impact of the learning curve at tertiary spine care centers Open
OBJECTIVE The past decade has seen major advances in techniques for treating more complex spinal disorders using minimally invasive surgery (MIS). While appealing from the standpoint of patient perioperative outcomes, a major impediment to…
View article: The comprehensive anatomical spinal osteotomy and anterior column realignment classification
The comprehensive anatomical spinal osteotomy and anterior column realignment classification Open
OBJECTIVE Spinal osteotomies and anterior column realignment (ACR) are procedures that allow preservation or restoration of spine lordosis. Variations of these techniques enable different degrees of segmental, regional, and global sagittal…
View article: The impact of age on surgical goals for spinopelvic alignment in minimally invasive surgery for adult spinal deformity
The impact of age on surgical goals for spinopelvic alignment in minimally invasive surgery for adult spinal deformity Open
OBJECTIVE Achieving appropriate spinopelvic alignment in deformity surgery has been correlated with improvement in pain and disability. Minimally invasive surgery (MIS) techniques have been used to treat adult spinal deformity (ASD); howev…
View article: Lateral lumbar interbody fusion in the elderly: a 10-year experience
Lateral lumbar interbody fusion in the elderly: a 10-year experience Open
OBJECTIVE Elderly patients, often presenting with multiple medical comorbidities, are touted to be at an increased risk of peri- and postoperative complications following spine surgery. Various minimally invasive surgical techniques have b…
View article: Low preoperative serum prealbumin levels and the postoperative surgical site infection risk in elective spine surgery: a consecutive series
Low preoperative serum prealbumin levels and the postoperative surgical site infection risk in elective spine surgery: a consecutive series Open
OBJECTIVE Nutritional deficiency negatively affects outcomes in many health conditions. In spine surgery, evidence linking preoperative nutritional deficiency to postoperative surgical site infection (SSI) has been limited to small retrosp…
View article: Early and Late Reoperation Rates With Various MIS Techniques for Adult Spinal Deformity Correction
Early and Late Reoperation Rates With Various MIS Techniques for Adult Spinal Deformity Correction Open
Study Design: A multicenter retrospective review of an adult spinal deformity database. Objective: We aimed to characterize reoperation rates and etiologies of adult spinal deformity surgery with circumferential minimally invasive surgery …
View article: Treatment of the Fractional Curve of Adult Scoliosis With Circumferential Minimally Invasive Surgery Versus Traditional, Open Surgery: An Analysis of Surgical Outcomes
Treatment of the Fractional Curve of Adult Scoliosis With Circumferential Minimally Invasive Surgery Versus Traditional, Open Surgery: An Analysis of Surgical Outcomes Open
Study Design: Retrospective, multicenter review of adult scoliosis patients with minimum 2-year follow-up. Objective: Because the fractional curve (FC) of adult scoliosis can cause radiculopathy, we evaluated patients treated with either c…
View article: Risk factors and clinical impact of perioperative neurological deficits following thoracolumbar arthrodesis
Risk factors and clinical impact of perioperative neurological deficits following thoracolumbar arthrodesis Open
This population based study found that increasing age, higher comorbid burden, and preoperative paralysis increased the risk of perioperative neurological deficits while female gender and hypertension were found to be protective.
View article: Impact of case type, length of stay, institution type, and comorbidities on Medicare diagnosis-related group reimbursement for adult spinal deformity surgery
Impact of case type, length of stay, institution type, and comorbidities on Medicare diagnosis-related group reimbursement for adult spinal deformity surgery Open
OBJECTIVE The aim of this study was to educate medical professionals about potential financial impacts of improper diagnosis-related group (DRG) coding in adult spinal deformity (ASD) surgery. METHODS Medicare’s Inpatient Prospective Payme…
View article: Complication rates associated with open versus percutaneous pedicle screw instrumentation among patients undergoing minimally invasive interbody fusion for adult spinal deformity
Complication rates associated with open versus percutaneous pedicle screw instrumentation among patients undergoing minimally invasive interbody fusion for adult spinal deformity Open
OBJECTIVE High-quality studies that compare outcomes of open and minimally invasively placed pedicle screws for adult spinal deformity are needed. Therefore, the authors compared differences in complications from a circumferential minimall…
View article: Graft subsidence as a predictor of revision surgery following stand-alone lateral lumbar interbody fusion
Graft subsidence as a predictor of revision surgery following stand-alone lateral lumbar interbody fusion Open
OBJECTIVE Lateral lumbar interbody fusion (LLIF) is a less invasive surgical option commonly used for a variety of spinal conditions, including in high-risk patient populations. LLIF is often performed as a stand-alone procedure, and may b…
View article: Long-term clinical outcomes following surgical management of cervical spine fractures in elderly patients
Long-term clinical outcomes following surgical management of cervical spine fractures in elderly patients Open
Background: To date, no studies have compared the outcomes of surgical management of cervical fractures in patients<75 to those of patients≥75. Given the possibility of increased frailty in “older” elderly patients, it is important to cons…
View article: Is There a Patient Profile That Characterizes a Patient With Adult Spinal Deformity as a Candidate for Minimally Invasive Surgery?
Is There a Patient Profile That Characterizes a Patient With Adult Spinal Deformity as a Candidate for Minimally Invasive Surgery? Open
Study Design: Retrospective review. Objectives: The goal of this study was to evaluate the baseline characteristics of patients chosen to undergo traditional open versus minimally invasive surgery (MIS) for adult spinal deformity (ASD). Me…
View article: A Multicenter Review of Superior Laryngeal Nerve Injury Following Anterior Cervical Spine Surgery
A Multicenter Review of Superior Laryngeal Nerve Injury Following Anterior Cervical Spine Surgery Open
Study Design: A retrospective multicenter case-series study; case report and review of the literature. Objective: The anatomy and function of the superior laryngeal nerve (SLN) are well described; however, the consequences of SLN injury re…
View article: A Multicenter Study of the Presentation, Treatment, and Outcomes of Cervical Dural Tears
A Multicenter Study of the Presentation, Treatment, and Outcomes of Cervical Dural Tears Open
Study Design: Retrospective multicenter case series study. Objective: Because cervical dural tears are rare, most surgeons have limited experience with this complication. A multicenter study was performed to better understand the presentat…