Effect of BMI on Postoperative Morbidities of Orthopaedic Procedures

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Total Enrollment

76189 participants

Study Classification

OBSERVATIONAL

Study Start Date

2012-01-01

Study Completion Date

2020-12-31

Brief Summary

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Obesity is associated with poor surgical outcome and complications. The literature does not provide a comprehensive view on the effect of body mass index (BMI) on perioperative outcomes in orthopedic surgeries. Therefore, we aim to determine the effect of BMI on 30-day perioperative outcomes in patients undergoing the first 25 most commonly performed orthopedic surgeries using a retrospective cohort study design. The knowledge of the effect of BMI on orthopedic surgeries will improve the knowledge of surgeons about the expected morbidities.

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Detailed Description

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Obesity is associated with poor surgical outcome and complications. The literature does not provide a comprehensive view on the effect of body mass index (BMI) on perioperative outcomes in orthopedic surgeries. Therefore, we aim to determine the procedure specific, independent-effect of BMI on 30-day perioperative outcomes in patients undergoing the first 25 most commonly performed orthopedic surgeries.

The study is a retrospective cohort study. The subjects will be the individuals undergoing one of first 25 most commonly performed orthopedic surgeries, whose information is derived form the de-identified patients' data collected through the American College of Surgeons National Surgical Quality Improvement Program (ACS-NSQIP) database. The primary outcome will be composite post-operative morbidity. Specific morbidities will also be evaluated including cardiovascular, vascular and renal complications, length-of-stay (LOS), and the need for re-intervention and readmission, as well as 30-day mortality. Descriptive statistics and multivariable regression models will assess the independent-effect of BMI on outcomes.

The knowledge of the effect of BMI on orthopedic surgeries will improve the knowledge of surgeons about the expected morbidities. The surgeon will be able to better counsel obese patients and devise a better surgical plan to prevent or deal with the expected outcomes.

Conditions

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Orthopedic Procedures Obesity

Study Design

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Observational Model Type

COHORT

Study Time Perspective

OTHER

Study Groups

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underweight

patients who underwent one of the 25 common orthopaedic surgeries and have a body mass index (BMI) of \<18.5kg/m2

Orthopaedic surgery

Intervention Type PROCEDURE

One of the 25 most common orthopedic surgeries reported in the database which are the following as per surgical types: spine surgery (CPT codes 63030, 63047, 22612, 22551 or 22558), trauma (CPT codes 27236, 27125, 27244, 27814, or 27792), sports medicine injuries (CPT codes 29881, 29827, 29880, 29888, 29826, 29877, 29807, or 23412), or joint arthroplasty (CPT codes 27447, 27130, 23472, 27487, 27134, 27446, or 27486).

normal-weight

patients who underwent one of the 25 common orthopaedic surgeries and have a BMI between 18.5kg/m2 and 24.9kg/m2

Orthopaedic surgery

Intervention Type PROCEDURE

One of the 25 most common orthopedic surgeries reported in the database which are the following as per surgical types: spine surgery (CPT codes 63030, 63047, 22612, 22551 or 22558), trauma (CPT codes 27236, 27125, 27244, 27814, or 27792), sports medicine injuries (CPT codes 29881, 29827, 29880, 29888, 29826, 29877, 29807, or 23412), or joint arthroplasty (CPT codes 27447, 27130, 23472, 27487, 27134, 27446, or 27486).

overweight

patients who underwent one of the 25 common orthopaedic surgeries and have a BMI between 25kg/m2 and 29.9kg/m2

Orthopaedic surgery

Intervention Type PROCEDURE

One of the 25 most common orthopedic surgeries reported in the database which are the following as per surgical types: spine surgery (CPT codes 63030, 63047, 22612, 22551 or 22558), trauma (CPT codes 27236, 27125, 27244, 27814, or 27792), sports medicine injuries (CPT codes 29881, 29827, 29880, 29888, 29826, 29877, 29807, or 23412), or joint arthroplasty (CPT codes 27447, 27130, 23472, 27487, 27134, 27446, or 27486).

mildly obese

patients who underwent one of the 25 common orthopaedic surgeries and have a BMI between 30kg/m2 and 34.9kg/m2

Orthopaedic surgery

Intervention Type PROCEDURE

One of the 25 most common orthopedic surgeries reported in the database which are the following as per surgical types: spine surgery (CPT codes 63030, 63047, 22612, 22551 or 22558), trauma (CPT codes 27236, 27125, 27244, 27814, or 27792), sports medicine injuries (CPT codes 29881, 29827, 29880, 29888, 29826, 29877, 29807, or 23412), or joint arthroplasty (CPT codes 27447, 27130, 23472, 27487, 27134, 27446, or 27486).

moderately-to-severely obese

patients who underwent one of the 25 common orthopaedic surgeries and have a BMI ≥35kg/m2

Orthopaedic surgery

Intervention Type PROCEDURE

One of the 25 most common orthopedic surgeries reported in the database which are the following as per surgical types: spine surgery (CPT codes 63030, 63047, 22612, 22551 or 22558), trauma (CPT codes 27236, 27125, 27244, 27814, or 27792), sports medicine injuries (CPT codes 29881, 29827, 29880, 29888, 29826, 29877, 29807, or 23412), or joint arthroplasty (CPT codes 27447, 27130, 23472, 27487, 27134, 27446, or 27486).

Interventions

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Orthopaedic surgery

One of the 25 most common orthopedic surgeries reported in the database which are the following as per surgical types: spine surgery (CPT codes 63030, 63047, 22612, 22551 or 22558), trauma (CPT codes 27236, 27125, 27244, 27814, or 27792), sports medicine injuries (CPT codes 29881, 29827, 29880, 29888, 29826, 29877, 29807, or 23412), or joint arthroplasty (CPT codes 27447, 27130, 23472, 27487, 27134, 27446, or 27486).

Intervention Type PROCEDURE

Eligibility Criteria

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Exclusion Criteria

* All patients who have undergone any of the 25 most common orthopedic procedures as primary procedure as identified through the CPT codes

* All patients whose BMI was not reported

Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No