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Transcutaneous Oxygen Pressure of the Injured Ankle as Predictor of Postoperative Cutaneous Pain

Transcutaneous Oxygen Pressure of the Injured Ankle as Predictor of Postoperative Cutaneous Pain

Status
Completed
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT04209582
Acronym
TAC
Enrollment
39
Registered
2019-12-24
Start date
2020-02-03
Completion date
2021-07-09
Last updated
2021-09-27

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

Conditions

Ankle Injuries

Brief summary

This monocentric prospective observational pilot study aims to investigate if the measurement of TcPO2 can be used as a predictor of postoperative cutaneous pain in patients with ankle surgery.

Detailed description

This prospective observational study aims to determine the limit of TcPO2 predictive of postoperative cutaneous pain in patients with ankle trauma. A TcPO2 measurement will be performed preoperatively at the patient's arrival in the emergency room, then every day after the operation for 3 days and finally at the follow-up visits at 3 and 6 weeks. The cutaneous pain is evaluated by a PSAS self-questionnaire (completed by the patient) and an OSAS questionnaire (completed by the surgeon). These grids evaluate the tolerance and cicatricial quality in the medium and long term by the operator and the patient.

Interventions

DEVICEmeasurement of TcPO2 with skin electrode

measurement of TcPO2 with skin electrode

Sponsors

Nantes University Hospital
Lead SponsorOTHER

Study design

Observational model
CASE_ONLY
Time perspective
PROSPECTIVE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum

Inclusion criteria

* Patients with surgery of ankle trauma

Exclusion criteria

* Patient who does not agree to participate * Patient unable to express agreement (ex: unconscious) * Minor patient * Major patient under tutorship or curatorship

Design outcomes

Primary

MeasureTime frame
Presence of postoperative skin pain within 3 months postoperatively0-3 Month

Secondary

MeasureTime frameDescription
Preoperative and postoperative day 1 TcPO2 on the injured ankleDay 1Compare TcPO2 values before and after surgery
Rates of postoperative complications related to S12 surgery and TcPO2 measurements3 monthsMeasure surgical complications based on TcPo2 measurements
Surgical revision rate at S12 and TcPO2 measurements3 monthsMeasure the number of surgical revisions based on TcPo2 measurements
Preoperative TcPO2 on the injured ankle and contralateral ankleday 0compare TcPO2 values between healthy ankle and traumatized ankle
Preoperative and postoperative day 1 TcPO2 on the injured ankle and comorbidities such as pulmonary pathologies, microangiopathy, vascular pathologies, history of traumaDay 1Describe the measures of TcPO2 according to comorbidities
Patient scar assessment scale (PSAS grid) at S6 and S12Week 6Describe the type of skin pain according to TcPO2 measurement The PSAS observation scale consists of 7 questions for the patient concerning pain, itching, colour, suppleness, thickness, appearance and a general opinion on the scar. Each parameter is rated on a scale from 1 (best score) to 10 (worst score). The sum of the 7 parameters gives the total score (minimum value = 7 ; maximum value = 70).
OSAS Scale (observer scars assessment scale) at S6 and S12Week 6Measure the quality of healing The OSAS observation scale consists of seven parameters (vascularization, pigmentation, thickness, relief, plasticity, surface and a global evaluation). Each parameter is rated on a scale ranging from 1 (like normal skin) to 10 (the worst scar imaginable). The sum of the 7 parameters gives the observer's total score (minimum value = 7 ; maximum value = 70).
Preoperative and postoperative day 1 TcPO2 on the injured ankle and type of fractureDay 1Describe the TcPO2 measurements according to the type of fracture

Countries

France

Outcome results

None listed

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