Geniculate Nerve Block Versus Adductor Canal Block for ACL Reconstruction Surgery

Trial statusRecruiting
Trial phaseNot applicable
Trial typeInterventional
Biological sexAll
Age18-50
SponsorHospital Clinic of Barcelona

About this trial

Anterior cruciate ligament repair (ACL) surgery presents moderate to severe pain during the inmediate postoperative period and the first days after surgery. In addition, due to the interest of surgeons and patients for early reinstatement, the use of blockages that decrease the strength of the quadriceps is avoided. Therefore, in recent years, the adductor canal block (ACB) has been used for postoperative analgesia with variable results.

Genicular nerve block (GNB) has been used for pain management in patients with knee osteoarthritis and recently in knee arthroplasty surgery with results similar to the local anesthetic infiltration techniques by the surgeon (LIA). Considering their good results in these patients in addition to being a 100% sensitive block without risk of motor involvement.

The investigators proposed this experimental study to evaluate tha analgesic efficacy of the genicular nerve block (GNB) compared with the adductor canal block (ACB) for the Anterior cruciate ligament (ACL) repair surgery.

Eligibility criteria

This trial does not accept healthy volunteers

Qualifiers

Patients from 18 to 50 years old scheduled to undergo anterior cruciate ligament reconstruction

Disqualifiers

peripheral neuropathy

pre-existing femoral neuropathy

diabetes mellitus

alcoholism

Trial design

Design model

Parallel

Treatments tested in this trial

  • Adductor canal block

    Procedure/Surgery

    Injection of the local anesthetic prior to the surgery, either in the the adductor canal or in the genicular nerves by the anesthesiologist under ultrasound guidance.

Treatment groups

40 Participants
are divided into 2 treatment groups
Group A: Adductor canal blockExperimental treatment 1 intervention
Group B: Genicular nerve blockExperimental treatment 1 intervention

Trial outcomes

Primary outcomes

1

Pain assessed by NRS at PACU

Numerical raiting score (NRS) 0-10 (0= No pain; 10=maximum pain)

Time frame
up to 6 hours postoperative
2

Opioid consumption at PACU

Metadone consumption in mg.

Time frame
up to 6 hours postoperative

Secondary outcomes

1

Pain score at home

Numerical raiting score (NRS) 0-10 (0= No pain; 10=maximum pain)

Time frame
up to 24 hours
2

Quality of rest

Sleep or wake-up during first night (Pain) (Awake because of pain: Yes / NO)

Time frame
First night

Other outcomes

Sponsors and contacts

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