Obturator Nerve Block in Patients With Hip Fracture (OPAD)
Proximal Obturator Nerve Block After Insufficient Analgesic Effect of Femoral Nerve Block in Patients With Hip Fracture
About 10-30% of all patients with hip fracture have only insufficient analgesic effect of a femoral nerve block. One of the possible causes of this failure to provide analgesia from a single nerve block could be the that other nerves occasionally are involved in transmitting the pain signal. One of the nerves that is believed to give off branches to the hip is the obturator nerve.
With ultrasound it is possible to make a selective proximal nerve block of the obturator nerve.
The aim of this trail is to give patients with hip fracture and only insufficient effect of a femoral nerve block a supplementary obturator nerve block in a randomized manner with either local anesthetics or placebo in order to access the preoperative analgesic effect.
調査の概要
詳細な説明
About 10-30% of all patients with hip fracture have only insufficient analgesic effect of a femoral nerve block. One of the possible causes of this failure to provide analgesia from a single nerve block could be the that other nerves occasionally are involved in transmitting the pain signal. One of the nerves that is believed to give off branches to the hip is the obturator nerve. Earlier it was believed that the so called '3-in-1-block' or the iliac fascia compartment block would anesthetize also the obturator nerve, and these two nerve blocks have been uses extensively in the emergency ward for preoperative analgesia. Today that is not believed to be true and consequently is the part of the obturator nerve in patients with hip fracture unknown.
With ultrasound it is possible to make a selective proximal nerve block of the obturator nerve before it branches into an anterior and a posterior branch. A selective nerve block af the obturator nerve to access its effect in patients with hip fracture has to our knowledge never been done.
The aim of this trail is to give patients with hip fracture and only insufficient effect of a femoral nerve block a supplementary obturator nerve block in a randomized manner with either local anesthetics or placebo in order to access the preoperative analgesic effect.
研究の種類
段階
- フェーズ 4
連絡先と場所
研究場所
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-
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Aarhus、デンマーク、8000
- Aarhus University Hospital
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-
参加基準
適格基準
就学可能な年齢
健康ボランティアの受け入れ
受講資格のある性別
説明
Inclusion Criteria:
- Clinical suspicion of hip fracture
- Successful sensory cutaneous effect of the femoral nerve block
- Age ≥ 55 years
- Mentally capable of comprehending and using verbal pain score
- Mentally capable of differentiating between pain from the fractured hip and pain from other locations
- Mentally capable of understanding the given information
- Arrival in the emergency room at times when one of the doctors who do the nerve blocks for this investigation are on call
- Possible sonographic visualization of the structures needed for the nerve block
- Verbal numeric pain scale score (NRS 0-10) > 5 with passive leg raise of the fractured leg at the time of inclusion OR NRS > 3 at rest, 30 minutes after a femoral nerve block
- Patients informed consent
Exclusion Criteria:
- Hip fracture not confirmed by x-ray
- Weight < 45 kg
- Patient has previously been included in this trial
- If the patient wishes to be excluded
- Allergy to local anesthetics or adrenocortical hormone
- Visible infection in the area of the point of needle injection
研究計画
研究はどのように設計されていますか？
デザインの詳細
- 主な目的：処理
- 割り当て：ランダム化
- 介入モデル：並列代入
- マスキング：4倍
武器と介入
参加者グループ / アーム |
介入・治療 |
|---|---|
|
実験的：Local anesthetic
15 ml. of local anesthetic
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Bupivacaine is injected proximally to anesthetize the obturator nerve
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|
プラセボコンパレーター：Saline
15 ml. of saline
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Saline is injected as a placebo
他の名前：
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この研究は何を測定していますか？
主要な結果の測定
結果測定 |
メジャーの説明 |
時間枠 |
|---|---|---|
|
Success rate of successful analgesia
時間枠：20 minutes
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Success rate of successful analgesia 20 minutes after a supplementary obturator nerve block in patients with hip fracture
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20 minutes
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二次結果の測定
結果測定 |
メジャーの説明 |
時間枠 |
|---|---|---|
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Time used for the procedure
時間枠：Expected average of 5 minutes
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Time from start of ultrasound scanning to end of injection of local anesthetic or placebo
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Expected average of 5 minutes
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Success rate of possible sonographic visualization
時間枠：Expected average of 5 minutes
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Success rate of possible sonographic visualization of necessary anatomical structures i order to do the nerve block
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Expected average of 5 minutes
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Time to analgesia
時間枠：20 minutes
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Time from end of injection of local anesthetic to analgesia
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20 minutes
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協力者と研究者
スポンサー
捜査官
- スタディディレクター：Thomas F. Bendtsen, MD, Ph.d.、Aarhus University Hospital
出版物と役立つリンク
研究記録日
主要日程の研究
研究開始
一次修了 (予想される)
研究の完了 (予想される)
試験登録日
最初に提出
QC基準を満たした最初の提出物
最初の投稿 (見積もり)
学習記録の更新
投稿された最後の更新 (見積もり)
QC基準を満たした最後の更新が送信されました
最終確認日
詳しくは
この情報は、Web サイト clinicaltrials.gov から変更なしで直接取得したものです。研究の詳細を変更、削除、または更新するリクエストがある場合は、register@clinicaltrials.gov。 までご連絡ください。 clinicaltrials.gov に変更が加えられるとすぐに、ウェブサイトでも自動的に更新されます。
股関節骨折の臨床試験
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Başakşehir Çam & Sakura City Hospital積極的、募集していない術後疼痛管理 | 局所麻酔の成功 | 鎮痛、術後 | HİP FRACTURE | 股関節手術（側方切開）トルコ（Türkiye）
Bupivacaineの臨床試験
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Tanta University完了デクスメデトミジン | 腹腔鏡下胆嚢摘出術 | 方形腰ブロック | 術後鎮痛 | ブピバカイン | 超音波ガイドエジプト
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Kulsoom International Hospital募集
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Allama Iqbal Teaching Hospital完了
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Tanta University完了
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Kocaeli Derince Education and Research Hospital完了