Non-guided hip injections are a safe and accurate method of treatment for patients undergoing hip arthroscopy due to Femeroacetabular Impingement (FAI)

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Lately, a new method for intraarticular hip injection has been increasingly considered, and is believed to be very accurate, eliminating the need for imaging assistance (which enables the surgeon to apply the treatment in an outpatient environment). This blind method of injection will be assessed by: 1. Injecting small amount of air into the hip prior to hip arthroscopy surgery in the operating theatre, in the same technique as it is performed on a regular basis, but via a different approach (anterior versus lateral) and initially with no image assistance. The location of the needle will then be assessed using fluoroscopy. 2. Injecting small amount of Methylene Blue into the hip prior to total hip replacement surgery, verifying its location and injection accuracy later during the same operation. Our hypothesis is that anterior hip injection technique, without imaging guidance, would yield high accuracy rates. Hip injections able to be performed without imaging will also lead to less expense for the patient and community with a reduction in burden on imaging services.

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