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Effects of Femoral Canal Opening Technique on Biomarkers

2026年6月12日 更新者:Vedran Kovacic、University of Split, School of Medicine

Effects of Femoral Canal Opening Technique on Inflammation, Coagulation, Organ Dysfunction, and Bone Metabolism

This single-centre prospective randomized study consisted of 60 participants (50 women) with a mean age of 80.33 ± 11.13 years, randomly allocated to either manual medullary canal opening (n = 30) or mechanical drilling of the canal (n = 30). Outcomes were assessed preoperatively and postoperatively during a 72-hour follow-up period. This study had a prospective design. Outcomes were assessed preoperative and during the follow-up period to 72 hours after surgery. During follow-up, all patients underwent laboratory testing. Blood samples were collected 2 hours preoperatively and 72 hours postoperatively in order to determine blood concentrations of leukocytes, erythrocytes, platelets (×10⁹/L), haemoglobin (g/L), D-dimers (IU/L), prothrombin time, international normalized ratio (INR), activated partial thromboplastin time (aPTT) (s), aPTT ratio, fibrinogen (g/L), creatinine (μmol/L), N-terminal pro-B-type natriuretic peptide (NT-proBNP) (pg/mL), C-reactive protein (CRP) (mg/L), glucose, urea, sodium, potassium, chloride, calcium, and phosphorus (mmol/L), as well as bone metabolism markers: total procollagen type 1 N-terminal propeptide (tP1NP) (µg/L), N-min osteocalcin (N-mOST) (µg/L), C-terminal telopeptide of type I collagen (β-CTX) (ng/mL), and bone-specific alkaline phosphatase (BAP) (µg/L).

The investigatoras compared differences in blood parameters between the two groups at baseline, as well as differences after 72 hours. In addition, the investigators analysed the dynamics (baseline vs. 72 hours) of outcome measures between the two study groups.

調査の概要

研究の種類

介入

入学 (実際)

60

段階

  • 適用できない

連絡先と場所

このセクションには、調査を実施する担当者の連絡先の詳細と、この調査が実施されている場所に関する情報が記載されています。

研究場所

      • Split、クロアチア
        • University Hospital of Split, 21000 Croatia

参加基準

研究者は、適格基準と呼ばれる特定の説明に適合する人を探します。これらの基準のいくつかの例は、人の一般的な健康状態または以前の治療です。

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

いいえ

説明

Inclusion Criteria:

- adult patients (aged > 18 years) admitted to the Department of Surgery, Orthopaedics and Traumatology Division, University Hospital Centre Split, who, during the observation period, sustained a pertrochanteric femoral fracture following a fall and were scheduled for surgery within 3 days after injury.

Exclusion Criteria:

  • included patients with acute or chronic inflammatory conditions
  • polytraumatic patients
  • patients with disseminated malignant disease
  • acute organ failure
  • patients on vitamin D and calcium supplementation
  • patients receiving corticosteroids, cytostatics, anticoagulations, or other medications that could influence the observed parameters.

研究計画

このセクションでは、研究がどのように設計され、研究が何を測定しているかなど、研究計画の詳細を提供します。

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:診断
  • 割り当て:ランダム化
  • 介入モデル:並列代入
  • マスキング:独身

武器と介入

参加者グループ / アーム
介入・治療
他の:manual medullary canal opening
Tthe medullary canal was opened under fluoroscopic guidance using a cannulated curved awl (14.0/3.2 mm).
All participants were operated on according to the same protocol, using the same type of procedure on a traction table, with prior fracture reduction under fluoroscopic (X-ray) guidance. All patients had the same type of fracture (pertrochanteric femoral fracture), and intramedullary osteosynthesis was performed using a ⌀ 9.0 mm, 340 mm Proximal Femoral Nail Antirotation (PFNA) (Synthes GmbH, Oberdorf, Switzerland). In the first group, the medullary canal was opened under fluoroscopic guidance using a cannulated curved awl (14.0/3.2 mm). In the second group, the medullary canal was opened under fluoroscopic guidance using a battery-powered surgical drill equipped with a cannulated drill bit (13.0 mm diameter, 290 mm length) (Synthes GmbH, Oberdorf, Switzerland).
他の:mechanical drilling of the canal
The medullary canal was opened under fluoroscopic guidance using a battery-powered surgical drill equipped with a cannulated drill bit (13.0 mm diameter, 290 mm length)
All participants were operated on according to the same protocol, using the same type of procedure on a traction table, with prior fracture reduction under fluoroscopic (X-ray) guidance. All patients had the same type of fracture (pertrochanteric femoral fracture), and intramedullary osteosynthesis was performed using a ⌀ 9.0 mm, 340 mm Proximal Femoral Nail Antirotation (PFNA) (Synthes GmbH, Oberdorf, Switzerland). In the first group, the medullary canal was opened under fluoroscopic guidance using a cannulated curved awl (14.0/3.2 mm). In the second group, the medullary canal was opened under fluoroscopic guidance using a battery-powered surgical drill equipped with a cannulated drill bit (13.0 mm diameter, 290 mm length) (Synthes GmbH, Oberdorf, Switzerland).

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
The main marker od inflamation
時間枠:The investigators compared differences in blood parameters between the two groups at baseline, as well as differences after 72 hours.
CRP (mg/L)
The investigators compared differences in blood parameters between the two groups at baseline, as well as differences after 72 hours.

二次結果の測定

結果測定
メジャーの説明
時間枠
Blood cells count
時間枠:The investigators compared differences in blood parameters between the two groups at baseline, as well as differences after 72 hours.
blood concentrations of leukocytes, erythrocytes, platelets (×10⁹/L)
The investigators compared differences in blood parameters between the two groups at baseline, as well as differences after 72 hours.
D-dimers concetration
時間枠:The investigators compared differences in blood parameters between the two groups at baseline, as well as differences after 72 hours.
D-dimers (IU/L)
The investigators compared differences in blood parameters between the two groups at baseline, as well as differences after 72 hours.
Coagulation: prothrombin time with international normalized ratio (INR)
時間枠:The investigators compared differences in blood parameters between the two groups at baseline, as well as differences after 72 hours.
prothrombin time (seconds)
The investigators compared differences in blood parameters between the two groups at baseline, as well as differences after 72 hours.
Coagulation: activated partial thromboplastin time (aPTT)
時間枠:The investigators compared differences in blood parameters between the two groups at baseline, as well as differences after 72 hours.
activated partial thromboplastin time (aPTT) (seconds)
The investigators compared differences in blood parameters between the two groups at baseline, as well as differences after 72 hours.
Fibrinogen concentration
時間枠:The investigators compared differences in blood parameters between the two groups at baseline, as well as differences after 72 hours.
fibrinogen (g/L)
The investigators compared differences in blood parameters between the two groups at baseline, as well as differences after 72 hours.
Creatinine concentration
時間枠:The investigators compared differences in blood parameters between the two groups at baseline, as well as differences after 72 hours.
creatinine (μmol/L)
The investigators compared differences in blood parameters between the two groups at baseline, as well as differences after 72 hours.
Concetration of N-terminal pro-B-type natriuretic peptide (NT-proBNP)
時間枠:The investigators compared differences in blood parameters between the two groups at baseline, as well as differences after 72 hours.
N-terminal pro-B-type natriuretic peptide (NT-proBNP) (pg/mL)
The investigators compared differences in blood parameters between the two groups at baseline, as well as differences after 72 hours.
Plasma biochemistry
時間枠:The investigators compared differences in blood parameters between the two groups at baseline, as well as differences after 72 hours.
glucose, urea, sodium, potassium, chloride, calcium, and phosphorus (mmol/L)
The investigators compared differences in blood parameters between the two groups at baseline, as well as differences after 72 hours.
Bone metabolism markers
時間枠:The investigators compared differences in blood parameters between the two groups at baseline, as well as differences after 72 hours.
total procollagen type 1 N-terminal propeptide (tP1NP) (µg/L), N-min osteocalcin (N-mOST) (µg/L), bone-specific alkaline phosphatase (BAP) (µg/L)
The investigators compared differences in blood parameters between the two groups at baseline, as well as differences after 72 hours.
Bone metabolism marker C-terminal telopeptide of type I collagen (β-CTX)
時間枠:The investigators compared differences in blood parameters between the two groups at baseline, as well as differences after 72 hours.
C-terminal telopeptide of type I collagen (β-CTX) (ng/mL)
The investigators compared differences in blood parameters between the two groups at baseline, as well as differences after 72 hours.

協力者と研究者

ここでは、この調査に関係する人々や組織を見つけることができます。

捜査官

  • 主任研究者:Vedran Kovacic、University of Split, School of Medicine

研究記録日

これらの日付は、ClinicalTrials.gov への研究記録と要約結果の提出の進捗状況を追跡します。研究記録と報告された結果は、国立医学図書館 (NLM) によって審査され、公開 Web サイトに掲載される前に、特定の品質管理基準を満たしていることが確認されます。

主要日程の研究

研究開始 (実際)

2025年3月1日

一次修了 (実際)

2025年11月30日

研究の完了 (実際)

2025年11月30日

試験登録日

最初に提出

2026年5月31日

QC基準を満たした最初の提出物

2026年6月12日

最初の投稿 (実際)

2026年6月15日

学習記録の更新

投稿された最後の更新 (実際)

2026年6月15日

QC基準を満たした最後の更新が送信されました

2026年6月12日

最終確認日

2026年6月1日

詳しくは

本研究に関する用語

その他の研究ID番号

  • 520-03/25-01/65

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