Hip Fractures
Conditions
Brief summary
The purpose of this study is to find out if two types of standard care anesthesia are the same or if one is better for people who have hip fractures.
Detailed description
Hip fracture is a clinical condition that involves a break in the femur (hip bone) near where it attaches to the pelvis. Hip fractures occur more than 300,000 times each year in the US and over 1.6 million times each year worldwide. Over 90% of hip fractures occur in individuals aged 50 or older, most commonly resulting from low-energy traumatic injuries, such as falls from standing in the context of established osteoporosis, chronic illness, or disability. Surgical treatment, via fixation of the fractured bone or partial or total replacement of the hip joint, is indicated for all types of hip fractures and approximately 95% of hip fracture patients undergo surgery. No evidence-based interventions now exist to improve functional outcomes after hip fracture surgery beyond the immediate postoperative period. Nearly all hip fracture patients require orthopedic surgery and anesthesia, making the anesthetic care episode a major opportunity to impact outcomes. Spinal and general anesthesia represent the two standard care approaches to anesthesia for hip fracture surgery. Basic and clinical research has identified multiple plausible mechanisms by which spinal anesthesia may improve outcomes after hip fracture; nonetheless, major guidelines and systematic reviews have identified key evidence gaps and anesthesia care for hip fracture varies markedly in practice. While spinal and general anesthesia for hip fracture have been previously compared in retrospective studies and small randomized trials, much of the available prospective trial data is old and may not be reflective of current clinical practice. REGAIN will be the first pragmatic multicenter prospective randomized trial of spinal versus general anesthesia for hip fracture surgery designed to evaluate the association of anesthesia technique with functional recovery after hip fracture. As such, it will fill critical evidence gaps to inform policy and practice. Approximately 2,424 subjects will be enrolled (i.e. informed consent for participation will be obtained) in order to yield approximately 1,600 randomized patients. This estimate is based on an assumption that one in three patients (33%) who undergo consent prior to surgery will not be randomized on the day of surgery due to active clinical issues, timing of medication dosing, clinical assessments by treating physicians or the site Clinical Director or their designate, or patient withdrawal of consent.
Interventions
Regional anesthesia involves temporarily numbing parts of the body with nerve blocks. Spinal anesthesia is a type of regional anesthesia that uses medications injected into the fluid surrounding the spinal cord to temporarily numb the legs and lower abdomen. Spinal anesthesia is the most widely used type of regional anesthesia for hip fracture surgery. While intravenous sedation is typically used for comfort with spinal anesthesia, invasive airway interventions are not typically required.
General anesthesia uses injected or inhaled medications to keep people unconscious during surgery. Since general anesthesia depresses breathing and impairs protective airway reflexes, invasive airway interventions such as breathing tube placement and mechanical ventilation are usually required.
Sponsors
Study design
Eligibility
Inclusion criteria
* Clinically or radiographically diagnosed intracapsular or extracapsular hip fracture * Planned surgical treatment via hemiarthroplasty, total hip arthroplasty or appropriate fixation procedure * Ability to walk 10 feet or across a room without human assistance before fracture
Exclusion criteria
* Planned concurrent surgery not amenable to spinal anesthesia * Absolute contraindications to spinal anesthesia * Periprosthetic fracture
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Death or Inability to Walk 10 Feet or Across a Room Without Human Assistance | Approximately 60 days after Randomization | Will be assessed via telephone interview |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Ability to Return to Home | Approximately 60, 180, and 365 days after randomization | Will be assessed via telephone interview. Measure assessed as death or new transition to nursing home residence at each time point. |
| Chronic Pain | Approximately 60, 180, and 365 days after randomization | Will be assessed via the Numeric Rating Scale (NRS) and the need for prescription medications as evaluated during telephone interview. NRS values range from 0 to 10, with higher values indicating greater pain. |
| Cognitive Function | Baseline and approximately 60, 180, and 365 days after randomization | Will be assessed via Short Blessed Test (SBT); SBT values range from 0 to 28, with higher scores indicating greater degrees of cognitive impairment. |
| All-cause Mortality | Approximately 60, 180, and 365 days after randomization | Will be assessed via telephone interview and National Death Index (NDI) search |
| Need for Assistive Devices for Walking | Approximately 60, 180, and 365 days after randomization | Will be assessed via telephone interview |
| Overall Health and Disability | Approximately 60, 180, and 365 days after randomization | Will be assessed via the 12-item World Health Organization Disability Assessment Schedule 2.0 (WHODAS 2.0). The 12-item WHODAS 2.0 scale measures disability in six functional domains (cognition, mobility, self-care, social interaction, life activities, and community participation). Scores range from 0 to 100, with lower scores indicating lower degrees of disability. |
| Satisfaction With Care | Postoperative day 3 or day of discharge, whichever occurs first | Will be assessed via Bauer Patient Satisfaction Questionnaire. Data reported here corresponds to a response of dissatisfied or very dissatisfied to one or more of 5 Bauer questionnaire items assessing the following domains: information given by anesthesiologist before surgery; waking up from anesthesia; pain therapy after surgery; treatment of nausea and vomiting after surgery; care provided by department of anesthesia in general. |
| Postoperative Delirium | Baseline and daily through postoperative day 3 or day of discharge, whichever occurs first | Will be assessed via 3-minute Diagnostic Interview for Confusion Assessment Method (3D-CAM) assessment tool. Any positive 3D-CAM screen over the first 3 postoperative days in a patient with a negative pre-randomization screen was counted as a case of incident delirium. |
| Inpatient Mortality | During initial hospitalization until day of discharge or 30 days after randomization, whichever occurs first | Will be assessed via medical chart review. Data reported here on inpatient mortality. |
| Major Inpatient Morbidity | During initial hospitalization until day of discharge or 30 days after randomization, whichever occurs first | Indicates occurrence of any of 12 complications based on medical record review: Myocardial infarction; Nonfatal cardiac arrest; Stroke; Pneumonia; Pulmonary edema; Pulmonary embolism; Unplanned postoperative intubation; Surgical-site infection; Urinary tract infection; Any return to the operating room; Critical care admission; Acute kidney injury. |
| Acute Postoperative Pain | Before surgery and daily through postoperative day 3 or day of discharge, whichever occurs first | Will be assessed via in-person interview using numeric rating scale (NRS). NRS values range from 0 to 10, with greater values indicating worse pain. |
Countries
Canada, United States
Participant flow
Pre-assignment details
Of the 1848 participants who provided informed consent, 248 withdrew consent prior to randomization; 1600 participants were randomly assigned to a treatment group and continued in the study.
Participants by arm
| Arm | Count |
|---|---|
| Regional Anesthesia Approximately half of the subjects will be randomized to the arm which receives Regional Anesthesia.
Regional Anesthesia: Regional anesthesia involves temporarily numbing parts of the body with nerve blocks. Spinal anesthesia is a type of regional anesthesia that uses medications injected into the fluid surrounding the spinal cord to temporarily numb the legs and lower abdomen. Spinal anesthesia is the most widely used type of regional anesthesia for hip fracture surgery. While intravenous sedation is typically used for comfort with spinal anesthesia, invasive airway interventions are not typically required. | 795 |
| General Anesthesia Approximately half of the subjects will be randomized to the arm which receives General Anesthesia.
General Anesthesia: General anesthesia uses injected or inhaled medications to keep people unconscious during surgery. Since general anesthesia depresses breathing and impairs protective airway reflexes, invasive airway interventions such as breathing tube placement and mechanical ventilation are usually required. | 805 |
| Total | 1,600 |
Withdrawals & dropouts
| Period | Reason | FG000 | FG001 |
|---|---|---|---|
| Overall Study | Death before receipt of anesthesia | 0 | 1 |
| Overall Study | Participant contacted but walking status was unknown | 14 | 16 |
| Overall Study | Participant unable to be contacted within 60-day interview window | 56 | 44 |
| Overall Study | Withdrawal by Subject | 13 | 11 |
Baseline characteristics
| Characteristic | Total | General Anesthesia | Regional Anesthesia |
|---|---|---|---|
| 3D-CAM Assessment for Delirium | 200 Participants | 104 Participants | 96 Participants |
| Age, Continuous | 78.1 years STANDARD_DEVIATION 10.7 | 78.4 years STANDARD_DEVIATION 10.6 | 77.7 years STANDARD_DEVIATION 10.7 |
| Race/Ethnicity, Customized Black | 122 Participants | 67 Participants | 55 Participants |
| Race/Ethnicity, Customized Hispanic ethnic group | 27 Participants | 12 Participants | 15 Participants |
| Race/Ethnicity, Customized Other or more than one race | 40 Participants | 16 Participants | 24 Participants |
| Race/Ethnicity, Customized White | 1374 Participants | 691 Participants | 683 Participants |
| Region of Enrollment Canada | 422 participants | 212 participants | 210 participants |
| Region of Enrollment United States | 1178 participants | 593 participants | 585 participants |
| Sex: Female, Male Female | 1072 Participants | 535 Participants | 537 Participants |
| Sex: Female, Male Male | 528 Participants | 270 Participants | 258 Participants |
Adverse events
| Event type | EG000 affected / at risk | EG001 affected / at risk |
|---|---|---|
| deaths Total, all-cause mortality | 98 / 795 | 92 / 805 |
| other Total, other adverse events | 278 / 795 | 286 / 805 |
| serious Total, serious adverse events | 255 / 795 | 242 / 805 |
Outcome results
Death or Inability to Walk 10 Feet or Across a Room Without Human Assistance
Will be assessed via telephone interview
Time frame: Approximately 60 days after Randomization
| Arm | Measure | Value (COUNT_OF_PARTICIPANTS) |
|---|---|---|
| Regional Anesthesia | Death or Inability to Walk 10 Feet or Across a Room Without Human Assistance | 132 Participants |
| General Anesthesia | Death or Inability to Walk 10 Feet or Across a Room Without Human Assistance | 132 Participants |
Ability to Return to Home
Will be assessed via telephone interview. Measure assessed as death or new transition to nursing home residence at each time point.
Time frame: Approximately 60, 180, and 365 days after randomization
Population: This outcome was assessed among patients who were not admitted from a nursing home, rehabilitation facility, or acute care hospital. Denominator includes all known decedents at each time point, plus survivors providing information on location of residence at the time of study interview.
| Arm | Measure | Group | Value (COUNT_OF_PARTICIPANTS) |
|---|---|---|---|
| Regional Anesthesia | Ability to Return to Home | 365-day outcomes | 119 Participants |
| Regional Anesthesia | Ability to Return to Home | 60-day outcomes | 108 Participants |
| Regional Anesthesia | Ability to Return to Home | 180-day outcomes | 103 Participants |
| General Anesthesia | Ability to Return to Home | 365-day outcomes | 116 Participants |
| General Anesthesia | Ability to Return to Home | 60-day outcomes | 114 Participants |
| General Anesthesia | Ability to Return to Home | 180-day outcomes | 90 Participants |
Acute Postoperative Pain
Will be assessed via in-person interview using numeric rating scale (NRS). NRS values range from 0 to 10, with greater values indicating worse pain.
Time frame: Before surgery and daily through postoperative day 3 or day of discharge, whichever occurs first
| Arm | Measure | Group | Value (MEAN) | Dispersion |
|---|---|---|---|---|
| Regional Anesthesia | Acute Postoperative Pain | Postoperative day 2 | 7.1 units on a scale | Standard Deviation 2.7 |
| Regional Anesthesia | Acute Postoperative Pain | Postoperative day 3 | 6.8 units on a scale | Standard Deviation 2.9 |
| Regional Anesthesia | Acute Postoperative Pain | Postoperative day 1 | 7.9 units on a scale | Standard Deviation 2.6 |
| General Anesthesia | Acute Postoperative Pain | Postoperative day 1 | 7.6 units on a scale | Standard Deviation 2.8 |
| General Anesthesia | Acute Postoperative Pain | Postoperative day 2 | 7.1 units on a scale | Standard Deviation 2.8 |
| General Anesthesia | Acute Postoperative Pain | Postoperative day 3 | 6.6 units on a scale | Standard Deviation 3 |
All-cause Mortality
Will be assessed via telephone interview and National Death Index (NDI) search
Time frame: Approximately 60, 180, and 365 days after randomization
Population: All enrolled patients who had not withdrawn or been lost to follow up a given study time point
| Arm | Measure | Group | Value (NUMBER) |
|---|---|---|---|
| Regional Anesthesia | All-cause Mortality | 60-day outcomes | 30 participants |
| Regional Anesthesia | All-cause Mortality | 180-day outcomes | 69 participants |
| Regional Anesthesia | All-cause Mortality | 365-day outcomes | 98 participants |
| General Anesthesia | All-cause Mortality | 60-day outcomes | 32 participants |
| General Anesthesia | All-cause Mortality | 180-day outcomes | 63 participants |
| General Anesthesia | All-cause Mortality | 365-day outcomes | 92 participants |
Chronic Pain
Will be assessed via the Numeric Rating Scale (NRS) and the need for prescription medications as evaluated during telephone interview. NRS values range from 0 to 10, with higher values indicating greater pain.
Time frame: Approximately 60, 180, and 365 days after randomization
Population: Numbers differ across rows due to missing data
| Arm | Measure | Group | Value (MEAN) | Dispersion |
|---|---|---|---|---|
| Regional Anesthesia | Chronic Pain | 60-day measure | 4.5 units on a scale | Standard Deviation 3.2 |
| Regional Anesthesia | Chronic Pain | 180-day measure | 3.5 units on a scale | Standard Deviation 3.3 |
| Regional Anesthesia | Chronic Pain | 365-day measure | 3.1 units on a scale | Standard Deviation 3.2 |
| General Anesthesia | Chronic Pain | 60-day measure | 4.2 units on a scale | Standard Deviation 3.2 |
| General Anesthesia | Chronic Pain | 180-day measure | 3.4 units on a scale | Standard Deviation 3.3 |
| General Anesthesia | Chronic Pain | 365-day measure | 3.2 units on a scale | Standard Deviation 3.3 |
Cognitive Function
Will be assessed via Short Blessed Test (SBT); SBT values range from 0 to 28, with higher scores indicating greater degrees of cognitive impairment.
Time frame: Baseline and approximately 60, 180, and 365 days after randomization
Population: Numbers differ across rows due to missing data
| Arm | Measure | Group | Value (MEDIAN) |
|---|---|---|---|
| Regional Anesthesia | Cognitive Function | 60 day measure | 2 units on a scale |
| Regional Anesthesia | Cognitive Function | 180 day measure | 2 units on a scale |
| Regional Anesthesia | Cognitive Function | 365 day measure | 2 units on a scale |
| General Anesthesia | Cognitive Function | 60 day measure | 2 units on a scale |
| General Anesthesia | Cognitive Function | 180 day measure | 2 units on a scale |
| General Anesthesia | Cognitive Function | 365 day measure | 2 units on a scale |
Inpatient Mortality
Will be assessed via medical chart review. Data reported here on inpatient mortality.
Time frame: During initial hospitalization until day of discharge or 30 days after randomization, whichever occurs first
| Arm | Measure | Value (COUNT_OF_PARTICIPANTS) |
|---|---|---|
| Regional Anesthesia | Inpatient Mortality | 5 Participants |
| General Anesthesia | Inpatient Mortality | 13 Participants |
Major Inpatient Morbidity
Indicates occurrence of any of 12 complications based on medical record review: Myocardial infarction; Nonfatal cardiac arrest; Stroke; Pneumonia; Pulmonary edema; Pulmonary embolism; Unplanned postoperative intubation; Surgical-site infection; Urinary tract infection; Any return to the operating room; Critical care admission; Acute kidney injury.
Time frame: During initial hospitalization until day of discharge or 30 days after randomization, whichever occurs first
| Arm | Measure | Value (COUNT_OF_PARTICIPANTS) |
|---|---|---|
| Regional Anesthesia | Major Inpatient Morbidity | 98 Participants |
| General Anesthesia | Major Inpatient Morbidity | 120 Participants |
Need for Assistive Devices for Walking
Will be assessed via telephone interview
Time frame: Approximately 60, 180, and 365 days after randomization
Population: 60-day outcome
| Arm | Measure | Group | Value (COUNT_OF_PARTICIPANTS) |
|---|---|---|---|
| Regional Anesthesia | Need for Assistive Devices for Walking | 60 day outcomes | 403 Participants |
| Regional Anesthesia | Need for Assistive Devices for Walking | 180 day outcomes | 231 Participants |
| Regional Anesthesia | Need for Assistive Devices for Walking | 365 day outcomes | 196 Participants |
| General Anesthesia | Need for Assistive Devices for Walking | 60 day outcomes | 397 Participants |
| General Anesthesia | Need for Assistive Devices for Walking | 180 day outcomes | 231 Participants |
| General Anesthesia | Need for Assistive Devices for Walking | 365 day outcomes | 193 Participants |
Overall Health and Disability
Will be assessed via the 12-item World Health Organization Disability Assessment Schedule 2.0 (WHODAS 2.0). The 12-item WHODAS 2.0 scale measures disability in six functional domains (cognition, mobility, self-care, social interaction, life activities, and community participation). Scores range from 0 to 100, with lower scores indicating lower degrees of disability.
Time frame: Approximately 60, 180, and 365 days after randomization
Population: Patients providing data at each time point
| Arm | Measure | Group | Value (MEDIAN) |
|---|---|---|---|
| Regional Anesthesia | Overall Health and Disability | 60-day outcome | 22.7 score on a scale |
| Regional Anesthesia | Overall Health and Disability | 180-day outcome | 10.4 score on a scale |
| Regional Anesthesia | Overall Health and Disability | 365-day outcome | 10.4 score on a scale |
| General Anesthesia | Overall Health and Disability | 180-day outcome | 10.4 score on a scale |
| General Anesthesia | Overall Health and Disability | 60-day outcome | 18.2 score on a scale |
| General Anesthesia | Overall Health and Disability | 365-day outcome | 8.3 score on a scale |
Postoperative Delirium
Will be assessed via 3-minute Diagnostic Interview for Confusion Assessment Method (3D-CAM) assessment tool. Any positive 3D-CAM screen over the first 3 postoperative days in a patient with a negative pre-randomization screen was counted as a case of incident delirium.
Time frame: Baseline and daily through postoperative day 3 or day of discharge, whichever occurs first
Population: This outcome was assessed only among patients who had a negative 3D-CAM assessment for delirium before randomization.
| Arm | Measure | Value (COUNT_OF_PARTICIPANTS) |
|---|---|---|
| Regional Anesthesia | Postoperative Delirium | 130 Participants |
| General Anesthesia | Postoperative Delirium | 124 Participants |
Satisfaction With Care
Will be assessed via Bauer Patient Satisfaction Questionnaire. Data reported here corresponds to a response of dissatisfied or very dissatisfied to one or more of 5 Bauer questionnaire items assessing the following domains: information given by anesthesiologist before surgery; waking up from anesthesia; pain therapy after surgery; treatment of nausea and vomiting after surgery; care provided by department of anesthesia in general.
Time frame: Postoperative day 3 or day of discharge, whichever occurs first
| Arm | Measure | Value (COUNT_OF_PARTICIPANTS) |
|---|---|---|
| Regional Anesthesia | Satisfaction With Care | 85 Participants |
| General Anesthesia | Satisfaction With Care | 97 Participants |