Identification of the Microcirculation of the Caput Femoris After Fracture of the Femoral Neck

Identification of Microcirculation in Fracture of the Femural Neck: How Does the Intracapsular Hematoma Affect the Capillary Bloodflow in the Caput Femoris?

Status

Withdrawn

Phases

Unknown

Study type

Observational

Source

ClinicalTrials.gov

Registry ID

NCT01483404

Acronym

MicroFemNeck

Enrollment

Registered

2011-12-01

Start date

2012-06-30

Completion date

2012-11-30

Last updated

2012-11-12

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Microcirculation of the Caput Femoris

Keywords

microcirculation, caput femoris

Brief summary

This project investigates wether the intra-capsular hematoma, that often occurs after fracture of the femural neck, decreases the capillary blood flow of the caput femoris. During operation the measuring device of the O2c-machine in placed on the joint capsula first and afterwards, after surgical opening of the capsula, on the femur directly. The integral of the microcirculation of both parts of the femur is measured in both settings. So the capillary blood flow is measured with the hematoma still in situ, eventually putting pressure on the caput femoris and after the capsula has been opened, the pressure relieved and the hematoma removed. Both measurements are compared for each patient. The O2c-machine measures non-invasive with light waves and laser-doppler. The sounding rod is packed in a sterile tube to prevent any contamination of the operation site.

Interventions

PROCEDUREMeasurement with O2c

Intra-surgery measurement of the microcirculation with the O2c device

Study design

Observational model

CASE_ONLY

Time perspective

PROSPECTIVE

Eligibility

Sex/Gender

ALL

Age

18 Years to No maximum

Healthy volunteers

Inclusion criteria

* medial fracture of the femural neck * surgical treatment (hip replacement)

Exclusion criteria

Polytrauma * pathologic fracture * conservative treatment * soft tissue damage * delay of surgery more than 3 days * Immune default * polytrauma

Design outcomes

Primary

Measure	Time frame	Description
Microcirculation of the caput femoris befor the capsula of the joint is opend	—	Four Values are measured: oxygen saturation local Hb local blood flow local blood velocity

Secondary

Measure	Time frame	Description
Microcirculaiton of the caput femoris after the capusla of the joint has been surgically opened and the hematoma has been removed	—	Four values are measured: oxygen saturation local Hb local blood flow local blood velocity

Countries

Germany

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026