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Regional Versus General Anesthesia for Promoting Independence After Hip Fracture

A Randomized Controlled Trial of Regional Versus General Anesthesia for Promoting Independence After Hip Fracture

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02507505
Acronym
REGAIN
Enrollment
1848
Registered
2015-07-24
Start date
2016-02-29
Completion date
2022-03-31
Last updated
2024-05-13

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Hip Fractures

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

PROCEDURERegional 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.

PROCEDUREGeneral 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.

Sponsors

Patient-Centered Outcomes Research Institute
CollaboratorOTHER
University of Pennsylvania
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
PREVENTION
Masking
DOUBLE (Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
50 Years to No maximum
Healthy volunteers
No

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

MeasureTime frameDescription
Death or Inability to Walk 10 Feet or Across a Room Without Human AssistanceApproximately 60 days after RandomizationWill be assessed via telephone interview

Secondary

MeasureTime frameDescription
Ability to Return to HomeApproximately 60, 180, and 365 days after randomizationWill be assessed via telephone interview. Measure assessed as death or new transition to nursing home residence at each time point.
Chronic PainApproximately 60, 180, and 365 days after randomizationWill 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 FunctionBaseline and approximately 60, 180, and 365 days after randomizationWill 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 MortalityApproximately 60, 180, and 365 days after randomizationWill be assessed via telephone interview and National Death Index (NDI) search
Need for Assistive Devices for WalkingApproximately 60, 180, and 365 days after randomizationWill be assessed via telephone interview
Overall Health and DisabilityApproximately 60, 180, and 365 days after randomizationWill 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 CarePostoperative day 3 or day of discharge, whichever occurs firstWill 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 DeliriumBaseline and daily through postoperative day 3 or day of discharge, whichever occurs firstWill 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 MortalityDuring initial hospitalization until day of discharge or 30 days after randomization, whichever occurs firstWill be assessed via medical chart review. Data reported here on inpatient mortality.
Major Inpatient MorbidityDuring initial hospitalization until day of discharge or 30 days after randomization, whichever occurs firstIndicates 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 PainBefore surgery and daily through postoperative day 3 or day of discharge, whichever occurs firstWill 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

ArmCount
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
Total1,600

Withdrawals & dropouts

PeriodReasonFG000FG001
Overall StudyDeath before receipt of anesthesia01
Overall StudyParticipant contacted but walking status was unknown1416
Overall StudyParticipant unable to be contacted within 60-day interview window5644
Overall StudyWithdrawal by Subject1311

Baseline characteristics

CharacteristicTotalGeneral AnesthesiaRegional Anesthesia
3D-CAM Assessment for Delirium200 Participants104 Participants96 Participants
Age, Continuous78.1 years
STANDARD_DEVIATION 10.7
78.4 years
STANDARD_DEVIATION 10.6
77.7 years
STANDARD_DEVIATION 10.7
Race/Ethnicity, Customized
Black
122 Participants67 Participants55 Participants
Race/Ethnicity, Customized
Hispanic ethnic group
27 Participants12 Participants15 Participants
Race/Ethnicity, Customized
Other or more than one race
40 Participants16 Participants24 Participants
Race/Ethnicity, Customized
White
1374 Participants691 Participants683 Participants
Region of Enrollment
Canada
422 participants212 participants210 participants
Region of Enrollment
United States
1178 participants593 participants585 participants
Sex: Female, Male
Female
1072 Participants535 Participants537 Participants
Sex: Female, Male
Male
528 Participants270 Participants258 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
98 / 79592 / 805
other
Total, other adverse events
278 / 795286 / 805
serious
Total, serious adverse events
255 / 795242 / 805

Outcome results

Primary

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

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Regional AnesthesiaDeath or Inability to Walk 10 Feet or Across a Room Without Human Assistance132 Participants
General AnesthesiaDeath or Inability to Walk 10 Feet or Across a Room Without Human Assistance132 Participants
Secondary

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.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Regional AnesthesiaAbility to Return to Home365-day outcomes119 Participants
Regional AnesthesiaAbility to Return to Home60-day outcomes108 Participants
Regional AnesthesiaAbility to Return to Home180-day outcomes103 Participants
General AnesthesiaAbility to Return to Home365-day outcomes116 Participants
General AnesthesiaAbility to Return to Home60-day outcomes114 Participants
General AnesthesiaAbility to Return to Home180-day outcomes90 Participants
Secondary

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

ArmMeasureGroupValue (MEAN)Dispersion
Regional AnesthesiaAcute Postoperative PainPostoperative day 27.1 units on a scaleStandard Deviation 2.7
Regional AnesthesiaAcute Postoperative PainPostoperative day 36.8 units on a scaleStandard Deviation 2.9
Regional AnesthesiaAcute Postoperative PainPostoperative day 17.9 units on a scaleStandard Deviation 2.6
General AnesthesiaAcute Postoperative PainPostoperative day 17.6 units on a scaleStandard Deviation 2.8
General AnesthesiaAcute Postoperative PainPostoperative day 27.1 units on a scaleStandard Deviation 2.8
General AnesthesiaAcute Postoperative PainPostoperative day 36.6 units on a scaleStandard Deviation 3
Secondary

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

ArmMeasureGroupValue (NUMBER)
Regional AnesthesiaAll-cause Mortality60-day outcomes30 participants
Regional AnesthesiaAll-cause Mortality180-day outcomes69 participants
Regional AnesthesiaAll-cause Mortality365-day outcomes98 participants
General AnesthesiaAll-cause Mortality60-day outcomes32 participants
General AnesthesiaAll-cause Mortality180-day outcomes63 participants
General AnesthesiaAll-cause Mortality365-day outcomes92 participants
Secondary

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

ArmMeasureGroupValue (MEAN)Dispersion
Regional AnesthesiaChronic Pain60-day measure4.5 units on a scaleStandard Deviation 3.2
Regional AnesthesiaChronic Pain180-day measure3.5 units on a scaleStandard Deviation 3.3
Regional AnesthesiaChronic Pain365-day measure3.1 units on a scaleStandard Deviation 3.2
General AnesthesiaChronic Pain60-day measure4.2 units on a scaleStandard Deviation 3.2
General AnesthesiaChronic Pain180-day measure3.4 units on a scaleStandard Deviation 3.3
General AnesthesiaChronic Pain365-day measure3.2 units on a scaleStandard Deviation 3.3
Secondary

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

ArmMeasureGroupValue (MEDIAN)
Regional AnesthesiaCognitive Function60 day measure2 units on a scale
Regional AnesthesiaCognitive Function180 day measure2 units on a scale
Regional AnesthesiaCognitive Function365 day measure2 units on a scale
General AnesthesiaCognitive Function60 day measure2 units on a scale
General AnesthesiaCognitive Function180 day measure2 units on a scale
General AnesthesiaCognitive Function365 day measure2 units on a scale
Secondary

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

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Regional AnesthesiaInpatient Mortality5 Participants
General AnesthesiaInpatient Mortality13 Participants
Secondary

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

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Regional AnesthesiaMajor Inpatient Morbidity98 Participants
General AnesthesiaMajor Inpatient Morbidity120 Participants
Secondary

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

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Regional AnesthesiaNeed for Assistive Devices for Walking60 day outcomes403 Participants
Regional AnesthesiaNeed for Assistive Devices for Walking180 day outcomes231 Participants
Regional AnesthesiaNeed for Assistive Devices for Walking365 day outcomes196 Participants
General AnesthesiaNeed for Assistive Devices for Walking60 day outcomes397 Participants
General AnesthesiaNeed for Assistive Devices for Walking180 day outcomes231 Participants
General AnesthesiaNeed for Assistive Devices for Walking365 day outcomes193 Participants
Secondary

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

ArmMeasureGroupValue (MEDIAN)
Regional AnesthesiaOverall Health and Disability60-day outcome22.7 score on a scale
Regional AnesthesiaOverall Health and Disability180-day outcome10.4 score on a scale
Regional AnesthesiaOverall Health and Disability365-day outcome10.4 score on a scale
General AnesthesiaOverall Health and Disability180-day outcome10.4 score on a scale
General AnesthesiaOverall Health and Disability60-day outcome18.2 score on a scale
General AnesthesiaOverall Health and Disability365-day outcome8.3 score on a scale
Secondary

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.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Regional AnesthesiaPostoperative Delirium130 Participants
General AnesthesiaPostoperative Delirium124 Participants
Secondary

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

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Regional AnesthesiaSatisfaction With Care85 Participants
General AnesthesiaSatisfaction With Care97 Participants

Source: ClinicalTrials.gov · Data processed: Mar 8, 2026