A Study Comparing Fascia Iliaca Blockade vs Extracapsular Local Field Infiltration With Liposomal Bupivacaine

The purpose the research is to help determine optimal means of post-operative analgesia following hip arthroscopic procedures. Post-operative pain is a significant contributor to patient satisfaction and the side effects of narcotic pain medication are well described. The ideal intervention for achieving appropriate analgesia following hip arthroscopy has not yet been defined. Determining means of achieving acceptable post-operative pain relief while minimizing narcotic usage will help yield maximal patient outcomes.The primary research procedures entailed in this study include fascia iliaca nerve blockade with Marcaine and local field infiltration with liposomal bupivicane (Exparel). The patients in this study will include those who have both a clinical and radiographic diagnosis of femoracetabular impingement (FAI), have failed non operative treatment, and are indicated for hip arthroscopy with labral repair and femoroplasty/acetabuloplasty. The study includes the surgical procedure and the first post-operative follow up visit. The total study duration is approximately 1.5 weeks for each patient. The study will be carried out until the patients first post-operative visit which typically occurs 7-10 days after the procedure. We are to include approximately 40 patients in total for this study over a period of 4 months.

Inclusion criteria

• adult patients (>18 years old)
• diagnosed FAI that are indicated for hip arthroscopic labral repair and femoroplasty/acetabuloplasty.

Exclusion criteria

• patients undergoing revision procedures, bilateral procedures,
• advanced osteoarthritis (<2mm joint space on plain radiographs)
• frank dysplasia (anterior and/or lateral center edge angles <20 degrees and/or Tonnis angle >15 degrees)
• diagnoses other than FAI (Legg Calve Perthes, femoral head avascular necrosis, septic arthritis, or post traumatic deformity).
• allergy to liposomal bupivicaine