Abstract
To quantitatively assess a surgical "learning curve" using the cumulative summation (CUSUM) score technique. Application of a CUSUM technique to a consecutive series of surgical cases. Consecutive primary cemented total hip replacement (THR; n=116) in 106 dogs. Records of all dogs that had primary canine THR were reviewed. Data retrieved included date of surgery, postoperative complications, and duration of follow-up. The 12-week outcome was analyzed graphically and with a CUSUM technique. One hundred and one (87%) procedures were "successful" and 15 (13%) developed major complications within 12 weeks (failures). The CUSUM chart clearly demonstrated an initial "learning curve" of ∼44 THR. The CUSUM technique can be used to demonstrate the learning curve for canine THR surgery.
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