The Predictive Value of Ultrasonographic Quadriceps Muscle Parameters for Genicular Nerve Block Outcomes in Knee Osteoarthritis
The Role of Quadriceps Muscle Architecture Parameters in Predicting the Success of Genicular Nerve Block in Patients With Chronic Knee Osteoarthritis Pain
The goal of this observational study is to learn whether thigh muscle structure can help predict pain relief after a genicular nerve block in people with knee osteoarthritis. A genicular nerve block is an injection used to reduce pain signals from the knee.
The main questions are:
- Are muscle thickness, fiber length, and fiber angle linked to pain relief after the procedure?
- Are these muscle measurements linked to changes in physical function and quality of life?
Participants are adults aged 50 to 80 with long-term pain from osteoarthritis in one knee. They are already scheduled to receive a genicular nerve block as part of their regular medical care. The study does not assign participants to receive this procedure.
Before the procedure, researchers will use ultrasound to measure the vastus lateralis muscle in the thigh. Participants will also answer questions about pain, daily function, and quality of life. Researchers will repeat these assessments after 1 hour, 3 weeks, and 3 months. Pain relief will be considered successful when pain is at least half as severe as it was before the procedure.
調査の概要
研究の種類
入学 (実際)
連絡先と場所
研究場所
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Pendik
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Istanbul、Pendik、トルコ(Türkiye)、34899
- Marmara University Pendik Training and Research Hospital
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参加基準
適格基準
就学可能な年齢
- 大人
- 高齢者
健康ボランティアの受け入れ
サンプリング方法
調査対象母集団
説明
Inclusion Criteria:
- Age between 50 and 80 years
- Unilateral symptomatic knee osteoarthritis
- Chronic knee pain for at least 3 months
- Clinical and radiographic confirmation of knee osteoarthritis
- Kellgren-Lawrence grade 3 or 4 knee osteoarthritis
- Inadequate clinical response despite analgesic therapy and physical therapy
- Clinical indication for genicular nerve block
Exclusion Criteria:
- History of surgery involving the knee region
- Bilateral symptomatic knee osteoarthritis
- Intra-articular knee injection within the previous 3 months
- Systemic disease that could affect study assessments
- Systemic or local infection
- Coagulation disorder
- Failure to provide written informed consent
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
コホートと介入
グループ/コホート |
介入・治療 |
|---|---|
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Patients With Chronic Knee Osteoarthritis Undergoing Ultrasound- Guided Genicular Nerve Block
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Ultrasound-guided genicular nerve block targeting the superomedial, superolateral, and inferomedial genicular nerves was performed as part of routine clinical management for chronic knee osteoarthritis.
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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 |
|---|---|---|
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Change in Pain Intensity Assessed by the Numeric Rating Scale (NRS)
時間枠:Baseline , 3 weeks, and 3 months
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Pain intensity will be assessed using an 11-point Numeric Rating Scale ranging from 0 (no pain) to 10 (worst imaginable pain).
Changes from baseline will be evaluated following ultrasound-guided genicular nerve block.
Lower scores indicate lower pain intensity.
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Baseline , 3 weeks, and 3 months
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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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Baseline Vastus Lateralis Muscle Thickness
時間枠:Baseline
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Vastus lateralis muscle thickness assessed by ultrasound and recorded in millimeters (mm).
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Baseline
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Baseline Vastus Lateralis Pennation Angle
時間枠:Baseline
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Description: Vastus lateralis pennation angle assessed by ultrasound and recorded in degrees (°).
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Baseline
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Baseline Vastus Lateralis Fascicle Length
時間枠:Baseline
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Description: Vastus lateralis fascicle length assessed by ultrasound and recorded in millimeters (mm).
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Baseline
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Change in Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) Score
時間枠:Baseline, 3 weeks, and 3 months after the procedure
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Description: Pain, stiffness, and physical function related to knee osteoarthritis will be assessed using the 24-item WOMAC questionnaire.
The total score ranges from 0 to 96, with higher scores indicating greater pain, stiffness, and functional impairment.
Changes from baseline will be evaluated following ultrasound-guided genicular nerve block.
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Baseline, 3 weeks, and 3 months after the procedure
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Change in Health-Related Quality of Life Assessed by the EQ-5D
時間枠:Baseline, 3 weeks, and 3 months after the procedure
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Description: Health-related quality of life will be assessed using the EQ-5D questionnaire.
Responses will be converted into an EQ-5D index score, where higher scores indicate better health status.
A score of 1 represents full health, 0 represents a health state equivalent to death, and negative scores represent health states considered worse than death.
Changes from baseline will be evaluated following ultrasound-guided genicular nerve block.
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Baseline, 3 weeks, and 3 months after the procedure
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協力者と研究者
スポンサー
研究記録日
主要日程の研究
研究開始 (実際)
一次修了 (実際)
研究の完了 (実際)
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 (実際)
学習記録の更新
投稿された最後の更新 (実際)
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
本研究に関する用語
キーワード
その他の研究ID番号
- 09.2019.1051
個々の参加者データ (IPD) の計画
個々の参加者データ (IPD) を共有する予定はありますか?
医薬品およびデバイス情報、研究文書
米国FDA規制医薬品の研究
米国FDA規制機器製品の研究
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