McMaster University

McMaster University

Pre-operative Intra-articular Hip Injection

MacOrtho is pleased to announce the most recent publication in the Knee Surgery, Sports Traumatology, Arthroscopy journal. This publication is entitled “ Pre-operative intra-articular hip injection as a predictor of short-term outcome following arthroscopic management of femoroacetabular impingement”

To read more, click here to access the full-version of the article.

Ayeni OR, Farrokhyar F, Crouch S, Chan K, Sprague S, Bhandari M. Pre-operative intra-articular hip injection as a predictor of short-term outcome following arthroscopic management of femoroacetabular impingement. Knee Surg Sports Traumatol Arthrosc. 2014 Feb 5. [Epub ahead of print]

Abstract

PURPOSE: Diagnostic hip injections are often used to confirm intra-articular pathology prior to arthroscopic treatment for femoroacetabular impingement (FAI). However, little is known whether the type of response correlates with the post-operative functional outcomes. The purpose of this study is to document the ability of a diagnostic hip injection to predict short-term functional outcomes following arthroscopic surgical management.

METHODS: A prospective cohort of 52 patients diagnosed with FAI who had an intra-articular hip injection prior to arthroscopic surgery was evaluated. A pain diary was used during the 2 weeks after hip injection to document response. In addition, the modified Harris Hip Score (mHHS) was administered preoperatively and 6 months post-operatively to assess functional outcomes. The relationship between response to an intra-articular hip injection and mHHS scores 6 months after FAI surgery was evaluated.

RESULTS: Overall, 42 of 52 (81 %) patients diagnosed with FAI achieved pain relief from the hip injection. Outcomes according to mHHS scores improved significantly at the 6-month follow-up visit (19 points, 95 % CI 15-24, p = 0.001). The therapeutic utility of the hip injection suggested that lack of pain relief predicted a lack of functional improvement following arthroscopic surgery.

CONCLUSION: In this study, the data suggests that a positive response from an intra-articular hip injection is not a strong predictor of short-term functional outcomes following arthroscopic management of FAI. However, a negative response from an intra-articular hip injection may predict a higher likelihood of having a negative result from surgery.

LEVEL OF EVIDENCE: II

 

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