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Intra Articular Ankle Fractures

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Duke University

Status

Enrolling

Conditions

Intra-Articular Fractures

Treatments

Device: Saline Lavage

Study type

Interventional

Funder types

Other

Identifiers

NCT05465382
Pro00110537

Details and patient eligibility

About

The purpose of this study is to examine the effect of early, percutaneous, intra-articular saline lavage on the undiluted synovial fluid microenvironment during the acute phase following intra-articular fracture of the human ankle. We hypothesize that early intervention with percutaneous joint lavage in the first 0-48 hours after injury will attenuate the production of pro-inflammatory cytokines, MMP's and cartilage breakdown products compared to non-lavaged control subjects at the time of surgical fixation.

Full description

Saline joint lavage represents a potentially simple, low-risk and minimal-cost intervention which has not been previously studied for the purpose of reducing the post-fracture inflammatory burden in human subjects. Open joint lavage at the time of definitive surgical fixation is within the standard of care, but typically occurs greater than 10 days after injury by which time cartilage degradation has already begun. Early, saline lavage during initial presentation to the emergency department may theoretically alter the progression of the intra-articular inflammatory response by evacuating the bulk of the developing synovial-fluid fracture hematoma.

The vast majority of ankle fractures present to the ER or urgent care within a day of fracture. Moreover, a large subset of these fractures require reduction (fracture setting) that is painful. It is our standard of care to perform an intra-articular lidocaine injection before reduction. We will take advantage of this standard of care needle insertion to the fractured ankle to perform saline joint lavage to diminish this early inflammatory burden. Adult patients presenting to the Duke University Hospital Emergency Department with an intra-articular fracture of the ankle joint between 0-48 hours from the time of injury will be eligible for inclusion. Patients will be randomized into one of two groups: 1) intra-articular saline lavage, vs 2) no intra-articular saline lavage. Intra-articular aspiration of synovial fluid from the injured ankle will occur both at the time of presentation to the emergency department and at the time of surgery. These synovial fluid samples will be analyzed for differences in key pro-inflammatory cytokines, matrix metalloproteinases and cartilage breakdown products to determine if early saline lavage effects the composition of the synovial fluid micro-environment.

Enrollment

60 estimated patients

Sex

All

Ages

18+ years old

Volunteers

No Healthy Volunteers

Inclusion criteria

  • Adult subjects (over 18 years of age)
  • Must be treated at Duke University Hospital Emergency Department
  • Intra-articular fracture of the ankle joint (any fracture of the fibula or tibia in which the fracture line(s) exit into the cartilage surface of the ankle joint)
  • Subjects presenting between 0-48 hours from the time of injury

Exclusion criteria

  • Age < 18 y.o.
  • Open fracture
  • Nonoperatively treated fractures
  • Subjects presenting >48 hours from the time of injury

Trial design

Primary purpose

Prevention

Allocation

Randomized

Interventional model

Parallel Assignment

Masking

Single Blind

60 participants in 2 patient groups

Intra-articular saline lavage
Experimental group
Description:
Subjects in Group 1 will then undergo saline joint lavage as follows: Subjects will undergo aspiration of the injured ankle joint via the standard anteromedial arthroscopy portal approach. This will be performed with sterile technique using a 16-gauge needle attached to a 10cc syringe. After synovial fluid aspiration, three 10cc syringes will be filled with 10cc of sterile 0.9% normal saline. Normal saline will be injected into the ankle joint and withdrawn from the joint via the existing anteromedial 16 gauge needle. After three rounds of lavage, 10cc of 1% lidocaine without epinephrine will be injected into the joint via the existing anteromedial 16-gauge needle. Subjects will undergo a period of soft tissue rest to allow for the resolution of soft tissue swelling. At the time of surgical fixation subjects will again undergo intra-articular aspiration of the injured ankle joint.
Treatment:
Device: Saline Lavage
No intra-articular saline lavage
No Intervention group
Description:
Subjects in group 2 will not undergo normal saline lavage as follows: Subjects will undergo aspiration of the injured ankle joint via the standard anteromedial arthroscopy portal approach. This will be performed with sterile technique using a 16-gauge needle attached to a 10cc syringe. After synovial fluid aspiration, they will undergo intra-articular injection of 10cc of 1% lidocaine without epinephrine via the existing anteromedial 16-gauge needle. Subjects will undergo a period of soft tissue rest to allow for the resolution of soft tissue swelling. At the time of surgical fixation, subjects will again undergo intra-articular aspiration of the injured ankle joint.

Trial contacts and locations

1

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Central trial contact

Jennifer Friend; Jake Ribet

Data sourced from clinicaltrials.gov

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