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Bogoch E, Marcano-Fernández FA, Schemitsch EH, Zhou Q, Bzovsky S, Bhandari M, Schneider PS, Swiontkowski M, Sprague S. High Rates of Imminent Subsequent Fracture After Femoral Neck Fracture in the Elderly. J Bone Joint Surg Am 2022; 104:1984-1992. [PMID: 36017942 DOI: 10.2106/jbjs.22.00088] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
BACKGROUND Fragility fractures of the hip are known to be followed frequently by subsequent fragility fractures, including second hip fractures. Data on subsequent fractures are available for aggregated index femoral neck and intertrochanteric femoral fractures, grouped generically as hip fractures, but not specifically for femoral neck fractures. There is increasing recognition that a subsequent fracture often occurs early after a hip fracture in the elderly, creating an emphasis on the concept of "imminent fracture risk." Since 2000, there have been many reports on the care gap in interventions after a fragility fracture, with concern regarding the slow uptake of appropriate systemic treatments designed to prevent a subsequent fracture in high-risk patients. METHODS As planned a priori, we performed an analysis of subsequent fractures after an index femoral neck fracture in 2 prospective clinical trials involving 2,520 patients from 90 sites on 5 continents. We recorded the incidence and time of occurrence of all secondary fragility fractures as well as the reported use of bone-protective medication in all subjects. RESULTS In the 24 months following the index femoral neck fracture, 226 (9.0%) of 2,520 patients sustained at least 1 subsequent fragility fracture, including 113 hip fractures (4.5%). The median interval from the index fracture to a subsequent fracture was approximately 9.0 months. Only 25.2% (634) of the 2,520 patients reported using bone-protective medications at any time during follow-up. Female patients, those with nondisplaced index fractures, and those treated with arthroplasty, were more likely to have received protective medication. CONCLUSIONS Subsequent fractures, including second hip fractures, occurred frequently and early following an index femoral neck fracture in 2 large global cohorts. Interventions to prevent a subsequent fracture were instituted in only 1 of 4 patients, even though a focused directive was included in both study protocols. LEVEL OF EVIDENCE Prognostic Level II . See Instructions for Authors for a complete description of levels of evidence.
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Affiliation(s)
- Earl Bogoch
- Department of Surgery, University of Toronto, Li Ka Shing Knowledge Institute, St. Michael's Hospital, Toronto, Ontario, Canada.,University of Toronto, Toronto, Ontario, Canada
| | - Francesc A Marcano-Fernández
- Orthopaedic Department, Parc Taulí Hospital Universitari, Institut d'Investigació i Innovació Parc Taulí I3PT, Universitat Autònoma de Barcelona, Sabadell, Spain
| | - Emil H Schemitsch
- Department of Surgery, University of Western Ontario, London, Ontario, Canada
| | - Qi Zhou
- Department of Health Research Methods, Evidence, and Impact, McMaster University, Hamilton, Ontario, Canada
| | - Sofia Bzovsky
- Division of Orthopaedic Surgery, Department of Surgery, McMaster University, Hamilton, Ontario, Canada
| | - Mohit Bhandari
- Department of Health Research Methods, Evidence, and Impact, McMaster University, Hamilton, Ontario, Canada.,Division of Orthopaedic Surgery, Department of Surgery, McMaster University, Hamilton, Ontario, Canada
| | - Prism S Schneider
- Division of Orthopaedic Trauma, Department of Surgery, University of Calgary, Calgary, Alberta, Canada
| | - Marc Swiontkowski
- Department of Orthopaedic Surgery, University of Minnesota, Minneapolis, Minnesota
| | - Sheila Sprague
- Department of Health Research Methods, Evidence, and Impact, McMaster University, Hamilton, Ontario, Canada.,Division of Orthopaedic Surgery, Department of Surgery, McMaster University, Hamilton, Ontario, Canada
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Parola R, Ganta A, Egol KA, Konda SR. Trauma Risk Score Matching for Observational Studies in Orthopedic Trauma. Injury 2022; 53:440-444. [PMID: 34916032 DOI: 10.1016/j.injury.2021.12.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/21/2021] [Revised: 11/27/2021] [Accepted: 12/01/2021] [Indexed: 02/02/2023]
Abstract
OBJECTIVES To determine if matching by trauma risk score is non-inferior to matching by chronic comorbidities and/or a combination of demographic and patient characteristics in observational studies of acute trauma in a hip fracture model. DESIGN Retrospective cohort study SETTING: Level-1 Trauma Center PATIENTS: 1,590 hip fracture [AO/OTA 31A and 31B] patients age 55 and over treated between October 2014 and February 2020 at 4 hospitals within a single academic medical center. INTERVENTION Repeatedly matching randomized subsets of patients by (1) Score for Trauma Triage in Geriatric and Middle-Aged (STTGMA), (2) Charlson Comorbidity Index (CCI), or (3) a combination of sex, age, CCI and body mass index (BMI). MAIN OUTCOME MEASUREMENTS "Matching failures" where rate of significant differences in variables of matched cohorts exceeds the 5% expected by chance. RESULTS STTGMA and combination matching resulted in no "matching failures". Matching by CCI alone resulted in "matching failures" of BMI, ASA class, STTGMA, major complications, sepsis, pneumonia, acute respiratory failure, and 90-day readmission. CONCLUSIONS STTGMA matching in observational cohort studies is less likely to yield significant differences of demographics and outcomes than CCI matching. STTGMA matching is noninferior to matching a combination of demographic variables optimized for each treatment cohort. STTGMA matching is apt to reflect equipoise of health at admission and outcome likelihood in observational cohort studies of orthopedic trauma, while maintaining consistent weighting of demographic and injury characteristic variables that may expand the generalizability of these studies. LEVEL OF EVIDENCE Level III.
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Affiliation(s)
- Rown Parola
- Department of Orthopedic Surgery, NYU Langone Orthopedic Hospital, New York, NY
| | - Abhishek Ganta
- Department of Orthopedic Surgery, NYU Langone Orthopedic Hospital, New York, NY; Department of Orthopedic Surgery, Jamaica Hospital Medical Center, New York, NY
| | - Kenneth A Egol
- Department of Orthopedic Surgery, NYU Langone Orthopedic Hospital, New York, NY; Department of Orthopedic Surgery, Jamaica Hospital Medical Center, New York, NY
| | - Sanjit R Konda
- Department of Orthopedic Surgery, NYU Langone Orthopedic Hospital, New York, NY; Department of Orthopedic Surgery, Jamaica Hospital Medical Center, New York, NY.
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