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.
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.
Study Type
OBSERVATIONAL
Enrollment
39
measurement of TcPO2 with skin electrode
Nantes University Hospital
Nantes, France
Presence of postoperative skin pain within 3 months postoperatively
Time frame: 0-3 Month
Preoperative TcPO2 on the injured ankle and contralateral ankle
compare TcPO2 values between healthy ankle and traumatized ankle
Time frame: day 0
Preoperative and postoperative day 1 TcPO2 on the injured ankle
Compare TcPO2 values before and after surgery
Time frame: Day 1
Rates of postoperative complications related to S12 surgery and TcPO2 measurements
Measure surgical complications based on TcPo2 measurements
Time frame: 3 months
Surgical revision rate at S12 and TcPO2 measurements
Measure the number of surgical revisions based on TcPo2 measurements
Time frame: 3 months
Preoperative and postoperative day 1 TcPO2 on the injured ankle and type of fracture
Describe the TcPO2 measurements according to the type of fracture
Time frame: Day 1
Preoperative and postoperative day 1 TcPO2 on the injured ankle and comorbidities such as pulmonary pathologies, microangiopathy, vascular pathologies, history of trauma
Describe the measures of TcPO2 according to comorbidities
Time frame: Day 1
Patient scar assessment scale (PSAS grid) at S6 and S12
Describe 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).
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Time frame: Week 6
Patient scar assessment scale (PSAS grid) at S6 and S12
Describe 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).
Time frame: Week 12
OSAS Scale (observer scars assessment scale) at S6 and S12
Measure 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).
Time frame: Week 6
OSAS Scale (observer scars assessment scale) at S6 and S12
Measure 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).
Time frame: Week 12