Comparing Spinal Anesthesia With 1% Chloroprocaine Versus 1% Mepivacaine in Patients Undergoing Outpatient Primary Total Knee Arthroplasty

Trial statusNot yet recruiting
Trial phasePhase 4
Trial typeInterventional
Biological sexAll
Age18+
SponsorNova Scotia Health Authority

About this trial

This study or clinical trial looking to compare 2 types of freezing medications injected into the spinal fluid at the lower back between the vertebrae in patients going to have total knee replacement surgery to check for early legs movement, early discharge from recovery room, walking and hospital discharge. This could save hospital cost of such procedures.

Eligibility criteria

This trial does not accept healthy volunteers

Qualifiers

ASA I-III

Elective outpatient TKA

BMI less than 40

Ability to provide surgical consent

Disqualifiers

Patient refusal

Opioid tolerant

Any contraindications to spinal anesthesia

Chronic opioid use 3months or more

Trial design

Design model

Parallel

Treatments tested in this trial

  • Mepivacaine Injection

    Drug

    Comparing time to motor block recovery in PACU, time to PACU discharge, time to ambulation and length of hospital stay

  • Chloroprocaine Injection

    Drug

    Comparing time to motor block recovery in PACU, time to PACU discharge, time to ambulation and length of hospital stay

Treatment groups

170 Participants
are divided into 2 treatment groups
Group A: One arm receives spinal Mepivacaine 50 mgActive comparator 1 intervention
Group B: Spinal Chloroprocaine groupActive comparator 1 intervention

Trial outcomes

Primary outcomes

1

Time to complete recovery of motor block

Time frame
Time from the intrathecal drug injection to the first documented instance of complete motor block recovery Bromage 0. Within approximately 2 hours for the Chloroprocaine group and 4 hours for the Mepivacaine group.
2

Time to complete motor block recovery of lower limbs after spinal anesthesia

Motor block will be assessed by PACU nurses in PACU using standard Bromage motor scale.

Time frame
From the time of intrathecal drug injection to PACU discharge. Within approximately 3 hours for the Chloroprocaine group and 5 hours for the Mepivacaine group.

Secondary outcomes

Other outcomes

Locations

This trial has no locations.

Sponsors and contacts

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