Pain Perception During Intra-Articular Knee Joint Injection: What is the Effect of Needle Gauge and the Use of Ethyl Chloride?

This intervention will observe patients post-procedural pain using a 25 gauge needle

This intervention will observe patients post-procedural pain using a 22 gauge needle

This intervention will observe patients post-procedural pain when using topical ethyl chloride spray. This will be compared to a placebo spray which will utilize isopropyl alcohol.