Peanut Protein Supplementation to Prevent Muscle Atrophy and Improve Recovery Following Total Knee Arthroplasty

Surgery Clinical Trial

Official title:

Peanut Protein Supplementation to Prevent Muscle Atrophy and Improve Recovery Following Total Knee Arthroplasty

Clinical Trial Details — Status: Terminated

Administrative data

• NCT number: NCT04294563
• Other study ID #: AU 20-104
• Status: Terminated
• Phase: N/A
• Start date: August 1, 2021
• Est. completion date: April 1, 2022

Study information

• Verified date: April 2023
• Source: Auburn University
• Contact: n/a
• Is FDA regulated: No
• Study type: Interventional

Clinical Trial Summary

This randomized controlled trial will study the effects of peanut protein supplementation on changes in muscle size and quality in patients undergoing total knee arthroplasty.

Description:

Total knee arthroplasty (TKA) is an effective treatment for patients with knee osteoarthritis (OA) accompanied by severe pain and functional limitations. With the success of this treatment and increasing incidence of OA, it has been projected that ~3.5 million older adults will undergo TKA annually by the year 2030. While TKA is effective for reducing pain and improving health-related quality of life, TKA patients experience significant skeletal muscle atrophy and weakness in the surgical leg following surgery which, long-term, can compromise balance, functional mobility and increase fall risk. Thus, interventions to mitigate muscle atrophy and weakness post-surgery are essential to improving long-term outcomes in patients undergoing TKA.

This randomized controlled trial will study the effects of peanut protein supplementation on changes in muscle size and quality in patients undergoing total knee arthroplasty. Patients (n=30) between the ages of 60-75 years scheduled to undergo total knee arthroplasty at the Jack Hughston clinic/hospital will be recruited to participate. Participants will be stratified by gender and randomized to a peanut protein (PP) supplementation (72g daily, n=15) or waitlist control (standard care with no PP, n=15) group who will be provided with PP following the intervention. Participants in the PP group will consume PP daily starting 7 days prior to surgery and for 6 weeks post-surgery. Participants will be monitored for changes in muscle size and quality (peripheral quantitative computed tomography), upper-leg strength (isokinetic dynamometry), knee range of motion (ROM; goniometry), pain (questionnaire and pressure algometry), and functional mobility outcomes (questionnaire, timed up and go, 2-min walk test) prior to surgery and at 6 and 12-weeks post-surgery.

Recruitment information / eligibility

• Status: Terminated
• Enrollment: 1
• Est. completion date: April 1, 2022
• Est. primary completion date: April 1, 2022
• Accepts healthy volunteers: Accepts Healthy Volunteers
• Gender: All
• Age group: 60 Years to 75 Years

Eligibility

Inclusion Criteria:

• total knee arthroplasty scheduled within two weeks under the care of surgeons at the Jack Hughston Clinic

Exclusion Criteria:

• history of invasive lower extremity surgery within the last 5 years

• allergy to peanuts or peanut products

• Body Mass Index <20 or >35 kg/m2

• currently adhering to a restrictive weight loss diet

• current or recent (within the last 2 months) steroid use

• any physical condition that interferes with performing post-surgery rehabilitation

• known peripheral vascular disease, kidney disease, liver disease, or uncontrolled endocrine disorder

• known overt cardiovascular or metabolic such as heart disease/failure or diabetes

• Radiation exposure within the last 6 months other than dental x-rays or associated with current knee treatment/diagnosis

Related Conditions & MeSH terms

• Atrophy
• Muscular Atrophy
• Surgery

Intervention

Dietary Supplement:
• Peanut Protein Powder
Peanut protein powder will be provided to participants who will be instructed to consume 72g daily, mixed with water

Other:
• Standard Care by Surgeon and Physical Therapist
Patient will receive standard care from treating physicians and physical therapists pre- and post-operatively

Locations

Country	Name	City	State
United States	Auburn University	Auburn	Alabama

Sponsors (3)

Lead Sponsor	Collaborator
Auburn University	Edward Via College of Osteopathic Medicine-Auburn, Jack Hughston Memorial Hospital

Country where clinical trial is conducted

United States, 

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Change in mid-thigh skeletal muscle area	peripheral quantitative computed tomography (pQCT) cross-sectional image of mid-right thigh assessed for total muscle cross-sectional area	0-6 weeks, 6-12 weeks
Primary	Change in mid-thigh skeletal muscle area and quality	peripheral quantitative computed tomography (pQCT) cross-sectional image of mid-right thigh assessed for overall muscle density	0-6 weeks, 6-12 weeks
Secondary	Change in leg extensor isokinetic dynamometry	maximal isokinetic right leg extensions on an isokinetic dynamometer (BioDex)	0-6 weeks, 6-12 weeks
Secondary	Physical Function testing	3 meter up and go test	0-6 weeks, 6-12 weeks
Secondary	Physical Performance testing	2 minute walk test	0-6 weeks, 6-12 weeks
Secondary	Oxford Knee Score	12 question inventory	0-6 weeks, 6-12 weeks
Secondary	Change in inflammatory biomarkers	serum C-reactive protein, interleukin-6, tumor necrosis factor-alpha, plasma 8-hydroxy-2'deoxyguanosine	0-6 weeks, 6-12 weeks