• Rheumatoid Arthritis
    • Jeffrey Neil Katz
    • Jeffrey Neil Katz: Influence Statistics

      Jeffrey Neil Katz

      Jeffrey Neil Katz

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      Department of Orthopedic Surgery, Brigham and Women’s Hospital, Boston, Massachusetts | Brigham and Women's Hospital and Harvard University, Boston, Massachusetts | ...

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      Jeffrey Neil Katz:Expert Impact

      Concepts for whichJeffrey Neil Katzhas direct influence:Rheumatoid arthritis,Knee osteoarthritis,United states,Meniscal tear,Total knee replacement,South africa,Physical activity,Knee replacement.

      Jeffrey Neil Katz:KOL impact

      Concepts related to the work of other authors for whichfor which Jeffrey Neil Katz has influence:Rheumatoid arthritis,Knee arthroplasty,Carpal tunnel syndrome,Lumbar spinal stenosis,Total hip,Chronic pain,United states.

      KOL Resume for Jeffrey Neil Katz


      Department of Orthopedic Surgery, Brigham and Women’s Hospital, Boston, Massachusetts

      Harvard Medical School, Boston, MA, USA

      Brigham and Women's Hosp., Boston, MA


      Orthopedic and Arthritis Center for Outcomes Research, Department of Orthopedic Surgery, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts

      The Orthopaedic and Arthritis Center for Outcomes Research, Brigham and Women’s Hospital, Boston, MA, USA

      Division of Rheumatology, Inflammation and Immunity, Boston, MA


      Department of Orthopedic Surgery (J.K.L., H.Y.Y., J.E.C., E.L., and J.N.K.), Division of Rheumatology, Immunology, and Allergy (J.N.K.), and The Orthopaedic and Arthritis Center for Outcomes Research (OrACORe) (H.Y.Y., J.E.C., E.L., and J.N.K.), Brigham and Women's Hospital, Boston, Massachusetts.

      Harvard T.H. Chan School of Public Health, Boston, MA, United States.

      Brigham and Women's Hospital, Orthopaedics and Rheumatology, 75 Francis Street, Hale 5016, Boston, MA 2115, USA

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      Sample of concepts for which Jeffrey Neil Katz is among the top experts in the world.
      Concept World rank
      knee fee #1
      older age dmard #1
      mycobacterial smear #1
      successful wrf #1
      specialty hospitals tkr #1
      95 higher ses #1
      health domains srh #1
      upper extremity role #1
      tka knee arthroscopy #1
      κ individual features #1
      vte thr cohort #1
      patients willingness cost #1
      icd9 codes avn #1
      risk calculator intervention #1
      outcome tjr #1
      demands months #1
      claudication caused #1
      patients extensive effusionsynovitis #1
      lumbar spinal fusions #1
      minorities patients #1
      wrf rtw #1
      scq health status #1
      distance dmard receipt #1
      tjr patients #1
      search papers #1
      spine specialists phase #1
      baseline increased exposure #1
      pivoting twisting #1
      ttt baseline #1
      tka low womac #1
      hour computer #1
      provider strategy #1
      months interaction #1
      body exhaust #1
      65 years bmi #1
      olisthesis outcomes #1
      medical complications blacks #1
      rheumatologistonly practices #1
      older adults comorbidities #1
      united states sid #1
      ses function #1
      surgery lack #1
      poor exercise adherence #1
      baseline differences differences #1
      health promotion score #1
      tjr dominican republic #1
      enrollment intervention design #1
      differential offer #1
      severe pain tkr #1
      upper extremity disorders #1
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      Prominent publications by Jeffrey Neil Katz

      KOL-Index: 22388

      BACKGROUND: The mortality and complication rates of many surgical procedures are inversely related to hospital procedure volume. The objective of this study was to determine whether the volumes of primary and revision total hip replacements performed at hospitals and by surgeons are associated with rates of mortality and complications.

      METHODS: We analyzed claims data of Medicare recipients who underwent elective primary total hip replacement (58,521 procedures) or revision total hip ...

      Known for Hip Replacement | Procedures Year | Medicare Population | Hospitals Surgeons | United States
      KOL-Index: 17896

      BACKGROUND: Information on the epidemiology of primary total hip replacement is limited, and we are not aware of any reports on the epidemiology of revision total hip replacement. The objective of this study was to characterize the rates and immediate postoperative outcomes of primary and revision total hip replacement in persons sixty-five years of age and older residing in the United States.

      METHODS: We used Medicare claims submitted by hospitals, physicians, and outpatient facilities ...

      Known for Hip Replacement | Revision Total | States Medicare | Rates Outcomes | Patient Characteristics
      KOL-Index: 17433

      BACKGROUND: The annual volume of major cardiovascular and oncologic procedures performed in hospitals and by surgeons has been inversely associated with the rates of perioperative mortality and complications. The relationship between hospital and surgeon volume and perioperative outcomes following total knee replacement has received little study.

      METHODS: We analyzed claims data for Medicare patients who had elective primary total knee replacement between January 1 and August 31, 2000. ...

      Known for Total Knee Replacement | Annual Volume | Patients Surgeons | Surgeon Hospital | Medicare Recipients
      KOL-Index: 17428

      BACKGROUND: Anterior cruciate ligament (ACL) injuries are common and potentially disabling and frequently prompt surgical reconstruction. The utilization of ACL reconstruction among ACL-injured patients has not been examined rigorously.

      PURPOSE: This study reports the 3-year cumulative incidence of ACL reconstruction among adults with ACL injury and compares demographic and clinical characteristics of ACL-injured patients who do and do not go on to undergo ACL reconstruction.

      STUDY ...

      Known for Acl Reconstruction | Cumulative Incidence | Higher Ses | Anterior Cruciate | Sex Factors
      KOL-Index: 16185

      BACKGROUND: The state of Massachusetts enacted universal health insurance in 2006. However it is unknown whether the increased access to care resulted in changes to surgical use or costs.

      QUESTIONS/PURPOSES: We asked the following related research questions: compared with the United States as a whole, how did the (1) number of cases (as a percentage of the overall population, to account for changes in the overall population during the time surveyed), (2) payer mix, and (3) inpatient ...

      Known for United States | Insurance Coverage | Hip Arthroplasty Replacement | Health Reform | Massachusetts Medicaid
      KOL-Index: 15964

      OBJECTIVE: To examine the sensitivity and positive predictive value of Medicare physician claims for select rheumatic conditions managed in rheumatology specialty practices.

      METHODS: Eight rheumatologists in 3 states abstracted 378 patient office records to obtain information on diagnosis and office procedures. The Medicare Part B physician claims for these patient visits were obtained from the Health Care Financing Administration. The sensitivity of the claims data for a specific ...

      Known for Positive Predictive | Rheumatologic Diagnoses | Sensitivity Claims | Patients Diagnosis | Records Medicare
      KOL-Index: 15828

      BACKGROUND: The aim of this study was to validate the Knee Society Clinical Rating System (knee and function scores) and to compare its responsiveness with that of the Western Ontario and McMaster University Osteoarthritis Index (WOMAC) and the Medical Outcomes Study Short Form-36 (SF-36).

      METHODS: Patients were recruited as part of a prospective observational study of the outcomes of primary total knee arthroplasty for the treatment of osteoarthritis in four centers in the United ...

      Known for Knee Society | Womac Sf36 | Clinical Rating | Standardized Response | Validity Responsiveness
      KOL-Index: 15185

      OBJECTIVE: To determine whether patients with knee or hip osteoarthritis (OA) who have worse physical function preoperatively achieve a postoperative status that is similar to that of patients with better preoperative function.

      METHODS: This study surveyed an observational cohort of 379 consecutive patients with definite OA who were without other inflammatory joint diseases and were undergoing either total hip or knee replacement in a US (Boston) and a Canadian (Montreal) referral ...

      Known for Preoperative Function | Knee Replacement | Total Hip | Surgery Patients | Pain Outcomes
      KOL-Index: 14940

      BACKGROUND: Obesity and knee osteoarthritis are among the most frequent chronic conditions affecting Americans aged 50 to 84 years.

      OBJECTIVE: To estimate quality-adjusted life-years lost due to obesity and knee osteoarthritis and health benefits of reducing obesity prevalence to levels observed a decade ago.

      DESIGN: The U.S. Census and obesity data from national data sources were combined with estimated prevalence of symptomatic knee osteoarthritis to assign persons aged 50 to 84 years ...

      Known for Knee Osteoarthritis | Adjusted Life | Aged Obesity | Prevalence Quality | Hispanic Americans
      KOL-Index: 14891

      OBJECTIVE: To evaluate rates of antiretroviral therapy (ART) initiation within 12 months of a new HIV diagnosis in Durban, South Africa.

      DESIGN: Prospective observational cohort.

      METHODS: Adults (>or=18 years) were enrolled before HIV testing at two outpatient clinics into the South African Test, Identify and Link cohort. Both sites offer comprehensive HIV care. HIV test results, CD4 cell counts, dates of ART initiation and dates of death were collected from medical records and 12-month ...

      Known for South Africa | Antiretroviral Therapy | Art Initiation | 12 Months | Hiv Diagnosis
      KOL-Index: 14816

      DESIGN: A prospective, multicenter observational study.

      OBJECTIVES: 1) Identify correlates of the decision to perform arthrodesis in patients undergoing laminectomy for lumbar spinal stenosis. 2) Compare symptoms, walking capacity, and satisfaction 6 and 24 months after laminectomy alone and laminectomy with noninstrumented and with instrumented arthrodesis.

      BACKGROUND DATA: Few prospective studies have compared outcomes of laminectomy alone or laminectomy with noninstrumented or with ...

      Known for Lumbar Laminectomy | Spinal Stenosis | Instrumented Arthrodesis | Hospital Costs | Walking Capacity
      KOL-Index: 14788

      BACKGROUND: There are limited population-based data on the utilization and outcomes of total knee replacement. The aim of the present study was to describe the rates of primary and revision total knee replacement and selected outcomes in persons older than sixty-five years of age in the United States.

      METHODS: Using Medicare claims, we computed annual incidence rates of unilateral elective primary and revision total knee replacement among United States Medicare beneficiaries in the year ...

      Known for United States | Knee Replacement | Rheumatoid Arthroplasty | Wound Infection | Myocardial Infarction
      KOL-Index: 14760

      BACKGROUND: The lengths of acute hospital stays following total hip replacement have diminished substantially in recent years. As a result, a greater proportion of complications occurs following discharge. Data on the incidence trends of major complications of total hip replacement would facilitate recognition and management of these adverse events.

      METHODS: We used Medicare claims data on beneficiaries sixty-five years and older who had had elective, primary total hip replacement for a ...

      Known for Pulmonary Embolism | Deep Infection | Hip Replacement | Elective Total | Discharge Data
      KOL-Index: 14750

      OBJECTIVE: To evaluate whether hospital volume and surgeon volume of total hip replacements (THRs) are associated with patient-reported functional status and satisfaction with surgery 3 years postoperatively.

      METHODS: We performed a population-based cohort study of a stratified random sample of Medicare beneficiaries who underwent elective primary or revision THR in Ohio, Pennsylvania, or Colorado in 1995. The primary outcomes were the self-reported Harris hip score and a validated scale ...

      Known for Surgeon Volume | Functional Status | Hip Replacement | Patients Thr | Medicare Beneficiaries

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      Department of Orthopedic Surgery, Brigham and Women’s Hospital, Boston, Massachusetts | Brigham and Women's Hospital and Harvard University, Boston, Massachusetts | Orthopaedic and Arthritis Center for Outcomes Research (OrACORe), Department of Ortho

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