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A Study to Compare the Ultrasound-guided Fascia Iliaca Compartment Block (FICB) to Surgeon-placed Fascia Iliaca Compartment Block for Post-operative Pain Control in Patients Undergoing an Anterior Hip Replacement Surgery.

2014-08-27 04:00:36 | BioPortfolio

Summary

Surgical trauma causes nerve sensitization leading to amplification and prolongation of postoperative pain. In experimental studies, pre-injury neural blockade using local anesthetics has been shown to reduce post-injury sensitization of the central nervous system, while similar techniques applied after the injury had less or no effect (FILOS). Investigators have therefore designed this study to examine the timing of FICB (pre-operatively versus intra-operatively) on postoperative pain in patients undergoing anterior hip replacement surgery.

Description

Though still uncommonly used in the United States, the popularity of the anterior approach for total hip replacement is rapidly growing because of its clinical advantages. Rehabilitation is simplified and accelerated, dislocation risk is reduced, leg length is more accurately controlled, and incision is smaller than with traditional approaches (GOEBEL). Nevertheless, although pain is lessened, it is still considerable, and new techniques have been developed to improve postoperative pain control for this procedure.

Surgical incision and tissue trauma result in postoperative pain. Regional pain blocks, especially when done under ultrasound guidance, have proven to be extremely effective at reducing postoperative pain and improving patient satisfaction. One such block, the fascia iliaca compartment block (FICB), has been shown to be effective in controlling pain associated with surgery involving the hip and femur.

Although possible without ultrasound guidance, using this technique allows for identification of specific tissue planes and precise placement of medication near the nerves responsible for postoperative pain. Using ultrasound, the superficial fascial layer of the iliopsoas muscle is identified at the anterior edge of the ilium, and a needle is placed just beneath that fascia. A high volume of local anesthetic is then injected under ultrasound guidance, ensuring cephalad spread of medication, in an attempt to provide anesthesia of the lateral femoral cutaneous, femoral and obturator nerves.

Unlike other approaches to hip replacement, anterior repair allows for direct visualization of the fascial layers described above. This allows for direct injection of local anesthetic beneath this fascia, potentially obviating the need for preoperatively performed, ultrasound guided, FICB. The primary differences in approach (ultrasound guided preop versus direct visualization intraop) is the timing of injection, and it is unclear if nerve block prior to or after tissue damage affects postoperative pain in these patients.

Surgical trauma causes nerve sensitization leading to amplification and prolongation of postoperative pain. In experimental studies, pre-injury neural blockade using local anesthetics has been shown to reduce post-injury sensitization of the central nervous system, while similar techniques applied after the injury had less or no effect (FILOS). Investigators have therefore designed this study to examine the timing of FICB (pre-operatively versus intra-operatively) on postoperative pain in patients undergoing anterior hip replacement surgery.

Study Design

Allocation: Randomized, Endpoint Classification: Efficacy Study, Intervention Model: Parallel Assignment, Masking: Open Label, Primary Purpose: Treatment

Conditions

Anterior Hip Replacement

Intervention

Pre-operative Ultrasound FICB Group, Intra-operative FICB Group

Location

Beaumont Health System
Royal Oak
Michigan
United States
48073

Status

Recruiting

Source

William Beaumont Hospitals

Results (where available)

View Results

Links

Published on BioPortfolio: 2014-08-27T04:00:36-0400

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