Fluoroscopy-Guided Lumbar Facet Block for Chronic Low Back Pain
Evaluation of Functionality and Pain After Fluoroscopy-Guided Lumbar Facet Block: A Prospective and Longitudinal Study
This prospective, longitudinal observational study evaluates functional recovery, pain intensity, and lumbar mobility after a fluoroscopy-guided lumbar facet joint block in patients with chronic lumbar facet syndrome. Forty patients receiving standard-of-care injections (ropivacaine 0.2% and methylprednisolone) will be observed. Outcomes are measured at baseline and 30 days post-intervention. The primary outcome is the change in Oswestry Disability Index (ODI). Secondary outcomes include changes in the Numeric Rating Scale (NRS) and the modified Schober test.
調査の概要
状態
状態
条件
条件
介入・治療
介入・治療
詳細な説明
Chronic low back pain due to facet joint arthropathy is a common cause of disability.
Fluoroscopy-guided facet joint blocks are widely used in standard practice, but evidence quantifying objective functional and biomechanical recovery beyond pain reduction is limited.
This single-center, prospective, observational, longitudinal study aims to objectively quantify functional recovery. Forty patients aged 18-75 years with clinically and radiologically confirmed lumbar facet syndrome will be observed. The intervention (unilateral fluoroscopy-guided injection of ropivacaine 0.2% [0.5-1 mL] and methylprednisolone into the affected facet joint) is performed strictly as part of routine clinical care, independent of study inclusion.
Assessments occur at baseline (T0) and 30 days post-injection (T1). The primary outcome is the change in Oswestry Disability Index (ODI) score. Secondary outcomes are changes in Numeric Rating Scale (NRS) pain scores and the modified Schober test (cm). Adverse events and procedural safety are recorded. The study aims to provide preliminary effect estimates to inform future controlled trials.
研究の種類
研究の種類
入学 (推定)
入学
連絡先と場所
研究連絡先
研究連絡先
- 名前:Paola Estefania Vallejo Mora, MD
- 電話番号:+52 56 3125 6766
- メール:paovallejo100177@gmail.com
研究連絡先のバックアップ
- 名前:Sergio Tenopala Villegas, MD
- 電話番号:+52 55 5412 0375
- メール:drstenopala@yahoo.com.mx
研究場所
-
-
Mexico City
-
Mexico City、Mexico City、メキシコ、03229
- Centro Médico Nacional 20 de Noviembre, ISSSTE
-
コンタクト:
- Paola Estefania Vallejo Mora, MD
- 電話番号:+52 56 3125 6766
- メール:paovallejo100177@gmail.com
-
コンタクト:
- Sergio Tenopala Villegas, MD
- 電話番号:+52 55 5412 0375
- メール:drstenopala@yahoo.com.mx
-
-
参加基準
適格基準
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
サンプリング方法
調査対象母集団
Adults aged 18-75 years with chronic low back pain (>3 months) due to lumbar facet syndrome confirmed by clinical examination and imaging, presenting to the Algology outpatient clinic.
説明
Inclusion Criteria:
- Age 18-75 years
- Clinical and radiological diagnosis of lumbar facet syndrome
- Low back pain duration >3 months
- Baseline NRS pain score ≥4/10
- Signed informed consent for the procedure and study participation
- Cognitive capacity to independently complete the Oswestry Disability Index
Exclusion Criteria:
- Radicular pain or confirmed disc herniation with neural compression
- Coagulopathy or use of anticoagulants not discontinued appropriately
- Active systemic or local infection
- Known allergy to local anaesthetics or corticosteroids
- Pregnancy or lactation
- Previous lumbar spine surgery at the same level
- Inability to comply with follow-up schedule
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
- 観測モデル:COHORT
- 時間の展望:PROSPECTIVE
グループ/コホートの数
コホートと介入
グループ/コホートグループ/コホート |
介入・治療介入・治療 |
|---|---|
|
Facet Block
Single group receiving standard-of-care fluoroscopy-guided lumbar facet joint injection of ropivacaine 0.2% (0.5-1 mL) and methylprednisolone into the affected facet joint(s). |
Under fluoroscopic guidance, a 20G Quincke needle is placed into the target lumbar facet joint or onto the adjacent medial branch. An arthrogram is performed with 0.3 to 0.5 mL of non-ionic contrast to confirm correct dispersion and exclude vascular/intrathecal uptake. Subsequently, 0.5 to 1 mL of a mixture containing ropivacaine 0.2% and methylprednisolone is injected per level. Performed on an outpatient basis under standard monitoring. |
この研究は何を測定していますか?
主要な結果の測定
主要な結果の測定
結果測定 |
メジャーの説明 |
時間枠 |
|---|---|---|
|
Change in Oswestry Disability Index (ODI)
時間枠:Baseline (pre-injection) and 30 days post-injection
|
The Oswestry Disability Index (ODI) is a 10-item questionnaire that measures functional disability in daily activities (0% = no disability, 100% = severe disability). The primary outcome is the change in ODI score from baseline to 30 days. A reduction of ≥10 points is considered clinically significant. |
Baseline (pre-injection) and 30 days post-injection
|
二次結果の測定
二次結果の測定
結果測定 |
メジャーの説明 |
時間枠 |
|---|---|---|
|
Change in Numeric Rating Scale (NRS) pain score
時間枠:Baseline, immediately post-procedure, and 30 days post-injection
|
Pain intensity measured using an 11-point Numeric Rating Scale (0 = no pain, 10 = worst imaginable pain). A clinically significant reduction is defined as at least a 50% decrease from the baseline score. |
Baseline, immediately post-procedure, and 30 days post-injection
|
|
Change in modified Schober test (lumbar flexion mobility)
時間枠:Baseline and 30 days post-injection
|
The modified Schober test measures lumbar flexion range (cm) to evaluate biomechanical mobility. An increase of at least 5 cm indicates a functional range. |
Baseline and 30 days post-injection
|
|
Incidence of adverse events
時間枠:Immediately after procedure up to 30 days post-injection
|
Record of any adverse events including pain at injection site, transient exacerbation of pain, allergic reaction, inadvertent dural puncture, spinal haematoma, or nerve root injury. |
Immediately after procedure up to 30 days post-injection
|
協力者と研究者
協力者
協力者
捜査官
捜査官
- 主任研究者:Sergio Tenopala Villegas, MD、Centro Médico Nacional 20 de Noviembre, ISSSTE
- 副調査官:Paola Estefania Vallejo Mora, MD、Centro Médico Nacional 20 de Noviembre, ISSSTE
研究記録日
主要日程の研究
研究開始 (推定)
研究開始
一次修了 (推定)
一次修了
研究の完了 (推定)
研究の完了
試験登録日
最初に提出
最初に提出
QC基準を満たした最初の提出物
QC基準を満たした最初の提出物
最初の投稿 (実際)
最初の投稿
学習記録の更新
投稿された最後の更新 (実際)
投稿された最後の更新
QC基準を満たした最後の更新が送信されました
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
最終確認日
詳しくは
本研究に関する用語
その他の研究ID番号
その他の研究ID番号
- RAI.CMN.373.2026
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?
IPD プランの説明
De-identified individual participant data underlying the results reported in this study, along with the full analysis code, will be made available following article publication via the corresponding author's public GitHub repository.
IPD 共有時間枠
Beginning at the time of article publication, with no end date.
IPD 共有アクセス基準
Data and code will be publicly available with no access restrictions via GitHub.
IPD 共有サポート情報タイプ
- STUDY_PROTOCOL
- ANALYTIC_CODE
- CSR
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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