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Synovial Fluid Sleep Study

A Single-center Observational Study of the Relationship Between Sleep, Synovial Fluid Cytokine Profiles, & Outcomes of ACL Reconstruction

Status
Completed
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT04688099
Enrollment
20
Registered
2020-12-29
Start date
2021-09-27
Completion date
2024-03-29
Last updated
2024-05-30

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

Conditions

Sleep

Brief summary

This is an observational study of the relationship between perioperative sleep time/quality, synovial fluid cytokine profiles, and clinical outcomes of primary ACL reconstruction with BPTB autograft in 50 subjects. Sleep during the week before and month after surgery will be assessed using Fitbit smartwatch and sleep diary. Synovial fluid sampled preoperatively, intraoperatively, and postoperatively will be analyzed for levels of pro- and anti-inflammatory cytokines. Postoperative knee pain and function will be assessed until 2 years post-op using validated questionnaires.

Interventions

None listed

Sponsors

NYU Langone Health
Lead SponsorOTHER

Study design

Observational model
COHORT
Time perspective
PROSPECTIVE

Eligibility

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

Inclusion criteria

1. At least 18 years of age 2. Undergoing primary ACL reconstruction with BPTB autograft for acute ACL tear, with or without concomitant meniscectomy 3. Presenting within 2 weeks of injury and undergoing reconstruction within 8 weeks of injury

Exclusion criteria

1. History of blood-borne diseases including HIV, HBV, HCV, HTLV, or syphilis 2. Pregnant 3. Multiligamentous knee injury 4. Concomitant meniscal repair, meniscal allograft transplantation, osteotomy, or repair of focal chondral defect (e.g., osteochondral autograft transfer system, osteochondral allograft, matrix-induced autologous chondrocyte implantation) 5. Prior ipsilateral knee surgeries or injuries 6. Primary sleep disorders including insomnia, sleep apnea, or restless legs syndrome 7. Uncontrolled psychiatric disorders with sleep disturbance 8. Night shift work 9. Travel with time zone change within three weeks of surgery 10. Systemic inflammatory disease 11. Autoimmune disease 12. Immunomodulatory drug use 13. Chemotherapy within a year before surgery 14. Intra-articular injection within 3 months before surgery

Design outcomes

Primary

MeasureTime frameDescription
Knee injury and Osteoarthritis Outcome Score (KOOS)Year 2KOOS is a survey is meant to track how the participant feels about their knee and how well they are able to perform their usual activities. There are six categories in the survey: Symptoms, Stiffness, Pain, Function/Daily Living, Function/Sports, Quality of Life. 1. Symptoms category consists of 5 questions, ranked from never to always (0-5). 2. Stiffness category consists of 2 questions, ranked from none to extreme (0-5). 3. Pain category consists of 9 questions, ranked from none to extreme (0-5). 4. Function/Daily Living category consists of 17 questions, ranked from none to extreme (0-5). 5. Function/Sports category consists of 5 questions, ranked from none to extreme (0-5). 6. Quality of Life category consists of 4 questions, ranked from not at all to extremely, constantly, totally (0-5). The total range of score is 0-210. The lower the score, the better they feel about their knee and performance of usual activities.

Secondary

MeasureTime frameDescription
Score on Lysholm Knee Scoring ScaleYear 2The Lysholm Knee Scoring Scale consists of 35 common complaints which people frequently have with their knee problems. Participants will check each statement which best describes their condition -- each statement is assigned a particular score, and those scores are added together to obtain the total score out of 100 (total range: 0-100). A higher score indicates more knee problems.
VAS Score for Anterior Knee PainYear 2The visual analog scale (VAS) is a validated, subjective measure for acute and chronic pain. Scores are recorded by making a handwritten mark on a 10-cm line that represents a continuum between no pain and worst pain. The total score range is 0-10; the higher the score, the worse the pain.
Knee Range of MotionYear 1Knee range of motion (maximal flexion and extension) will be measured bilaterally using a goniometer.
Thigh CircumferenceYear 1Thigh circumference will be measured bilaterally.
Concentration of Synovial Fluid CytokinesYear 1Synovial fluid from the injured knee will be sampled preoperatively, intraoperatively, and postoperatively and analyzed for levels of the following pro- and anti-inflammatory cytokines using multiplex magnetic bead immunoassay or ELISA: matrix metalloproteinase (MMP) 3, tissue inhibitor of metalloproteinase (TIMP) 1, TIMP-2, interleukin-1 receptor antagonist (IL-1ra), IL-6, monocyte chemotactic protein (MCP) 1, macrophage inflammatory protein (MIP) 1beta/CCL4, RANTES (regulated upon activation, normal T cell expressed and secreted), vascular endothelial growth factor (VEGF), and basic fibroblast growth factor (bFGF/FGF-2).

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026