Periarticular Injection Versus Peripheral Nerve Block in Total Hip Arthroplasty

To support our hypothesis that preoperative quadratus lumborum block (QLB)/lateral femoral cutaneous nerve block (LFCNB) provides more effective analgesia than periarticular injection (PAI) in total hip arthroplasty (THA), we will look at the following outcomes:

Primary outcome: Daily opioid consumption

Secondary outcomes:

Pain intensity and physical functioning while in the hospital: using pain inventory modified from Brief Pain Inventory and Length of hospital stays.

Since both QLB/LFCNB nerve block and PAI techniques are both routinely used as standard of care anesthesia for THA, the study intervention will be the randomization to assign patients to one of these treatment options and assess their response from post-op patient questionnaires and data collection.

When results were entered, the detailed description was updated to reflect the outcome measures used in the study.

Inclusion criteria

• Elective unilateral primary THA
• All surgical approaches
• American Society of Anesthesiologist (ASA) status I, II and III.

Exclusion criteria

• Patient refusal;
• Age less than 18 years
• Those with cognitive dysfunction, psychiatric disorder, or non-English speaking patients that cannot consent or communicate clear understanding of the protocol with research team;
• Coagulopathy;