- Spine and Intervertebral Disc Pathology
- Cervical and Thoracic Myelopathy
- Spinal Fractures and Fixation Techniques
- Scoliosis diagnosis and treatment
- Spinal Hematomas and Complications
- Medical Imaging and Analysis
- Pelvic and Acetabular Injuries
- Musculoskeletal pain and rehabilitation
- Nerve Injury and Rehabilitation
- Anesthesia and Pain Management
- Spinal Cord Injury Research
- Surgical site infection prevention
- Intraoperative Neuromonitoring and Anesthetic Effects
- Spinal Dysraphism and Malformations
- Hip and Femur Fractures
- Bone health and treatments
- Orthopedic Infections and Treatments
- Surgical Sutures and Adhesives
- Orthopedic Surgery and Rehabilitation
- Infectious Diseases and Tuberculosis
- Bone health and osteoporosis research
- Peripheral Nerve Disorders
- Musculoskeletal synovial abnormalities and treatments
- Reconstructive Surgery and Microvascular Techniques
- Shoulder Injury and Treatment
Cornell University
1989-2025
Neurological Surgery
2014-2025
Texas Health Dallas
2016-2024
Columbia University Irving Medical Center
2015-2024
NewYork–Presbyterian Hospital
1989-2024
Columbia University
2015-2024
Weill Cornell Medicine
2021-2024
Presbyterian Hospital
2018-2023
New York Hospital Queens
2015-2023
The Spine Institute
2020-2022
Surgical site infections are not uncommon following spinal operations, and they can be associated with serious morbidity, mortality, increased resource utilization. The accurate identification of risk factors is essential to develop strategies prevent these potentially devastating infections. We conducted a case-control study determine independent for surgical infection orthopaedic operations.We performed retrospective patients who had an operation at university-affiliated tertiary-care...
A retrospective study.To evaluate the safety of a free hand technique pedicle screw placement in thoracic spine at single institution over 10-year experience.Thoracic fixation techniques are still controversial for deformities because possible complications including neurologic.Three hundred ninety-four consecutive patients who underwent posterior stabilization utilizing 3204 transpedicular screws by 2 surgeons from 1992 to 2002 were analyzed. The mean age was 27 + 10 years (range 5 3-87 0...
Background: The purpose of the present study was to determine effectiveness selective nerve-root injections in obviating need for an operation patients with lumbar radicular pain who were otherwise considered be operative candidates. Although are used widely, we not aware any prospective, randomized, controlled, double-blind studies demonstrating their efficacy. Methods: Fifty-five referred four spine surgeons because and had radiographic confirmation compression prospectively randomized...
Guideline development.The objective of this study is to develop guidelines that outline how best manage (1) patients with mild, moderate, and severe myelopathy (2) nonmyelopathic evidence cord compression or without clinical symptoms radiculopathy.Five systematic reviews the literature were conducted synthesize on disease natural history; risk factors progression; efficacy, effectiveness, safety nonoperative surgical management; impact preoperative duration severity treatment outcomes;...
Background: The published two-year results of the pivotal U.S. Food and Drug Administration investigational device exemption trial with use Bryan cervical disc arthroplasty compared anterior discectomy fusion for treating single-level degenerative disease revealed a significantly superior overall success rate in group. purpose this study was to evaluate midterm safety effectiveness as an alternative arthrodesis following discectomy. Methods: A prospective, multicenter randomized clinical...
Despite the complexity of cervical spine deformity (CSD) and its significant impact on patient quality life, there exists no comprehensive classification system. The objective this study was to develop a novel system based modified Delphi approach characterize intra- interobserver reliability classification.Based an extensive literature review with expert panel, CSD generated. included descriptor 5 modifiers that incorporated sagittal, regional, global spinopelvic alignment neurological...
Cervical spondylotic myelopathy is the most common cause of spinal cord dysfunction worldwide. It remains unknown whether a ventral or dorsal surgical approach provides best results.
The orientation of the lumbar facet joints was studied with magnetic resonance imaging in 140 subjects to determine if there is an association between tropism and intervertebral disc disease or degenerative spondylolisthesis. were divided into four groups: sixty-seven asymptomatic volunteers, forty-six whom did not have a herniated on scans (Group I) twenty-one who II); symptomatic patients had confirmed operatively III); twenty-seven spondylolisthesis at interspace fourth fifth vertebrae...
It has been our experience that ossification occurs adjacent to anterior cervical plates. Our hypothesis was the closer plate is disc space, greater ossification.We retrospectively reviewed lateral radiographs of spine 118 patients who had a solid fusion following an arthrodesis with for treatment degenerative condition; none surgery prior index arthrodesis. The plate-to-disc distance measured on postoperative radiograph and used divide into two groups each spaces. In group A <5 mm, in B it...
In a previous prospective, randomized, controlled, double-blinded study on the effect of nerve root blocks need for operative treatment lumbar radicular pain, we found that injections corticosteroids were more effective than bupivacaine up to thirteen twenty-eight months. We performed minimum five-year followup those patients who had avoided surgery.All considered be candidates by treating surgeon, and all initially requested intervention. They then been randomized treated with selective...
An analysis of consecutive pediatric patients treated surgically for high-grade spondylolisthesis by one three surgical procedures with emphasis on complications and functional outcomes.Complications, radiographic results patient-assessed function, pain, satisfaction were assessed among procedures.The existing literature is in disagreement about whether it better to fuse without instrumented reduction or use instrumentation reduce dysplastic spondylolisthesis.Thirty-two had 37 Meyerding...
In Brief Study Design. Post hoc analysis of prospectively collected data. Objective. Development methods to determine in vivo spinal cord dimensions and application correlate preoperative alignment, myelopathy, health-related quality-of-life scores patients with cervical spondylotic myelopathy (CSM). Summary Background Data. CSM is the leading cause dysfunction. The association between sagittal balance, has not been well characterized. Methods. This was a post prospective, multicenter...
In Brief Study Design. Randomized controlled study. Objective. To compare the rates of adverse events associated with disc arthroplasty versus those anterior cervical discectomy and arthrodesis allograft plate. Summary Background Data. Cervical as a substitute for fusion has been developed to maintain motion and, theoretically, prevent adjacent segment degeneration. Currently, devices are undergoing clinical testing safety efficacy. The evaluation is performed by critical analysis all...
Background: To decrease surgical site infections, we initiated a protocol of preliminary preparation the skin and surrounding plastic drapes with alcohol foam, placement suprafascial drain in addition to subfascial obese patients 2004. In 2008, additionally placed 500 mg vancomycin powder into wound prior closure. The purpose this study was analyze infection rates for three groups: Group C (control that received standard perioperative intravenous antibiotics alone), AD (alcohol foam drain),...
Study Design. A prospective, randomized multicenter IDE trial between May 2002 and October 2004. Objective. The aim of this study was to report on the 10-year safety efficacy BRYAN cervical disc arthroplasty (CDA). Summary Background Data. Cervical (CDA) is a potential alternative for anterior decompression fusion (ACDF) with hope that maintenance motion may decrease likelihood adjacent segment disease. Methods. This an analysis US Food Drug Administration (FDA) investigation comparing CDA...
A retrospective study.The purpose of this study was to determine, using survivorship analysis, the rate adjacent segment pathology (ASP) development and identify risk factors for reoperation.The Hilibrand defined "adjacent disease" as symptomatic radiculopathy or myelopathy due an documented on 2 consecutive office visits. In addition being somewhat subjective, their criterion is not practical identifying by need reoperation.This a analysis 1038 patients who underwent primary anterior...