Thank you very much. My apologies again for the English-only version. I'll leave it for translation.
I'd like to take the next few minutes to speak to you about innovative orthopedic health care delivery and device development.
I'm one of four surgeons who work at the Concordia Hip and Knee Institute. We specialize in primary and revision hip and knee replacements.
We have a multidisciplinary pre-hab and education team to help prepare patients for surgery. We have a digital radiology suite with RSA capabilities for research and follow-up. We have an implant retrieval and analysis laboratory and an implant ware and testing laboratory. We have quite an active clinical research group. We also participate in access and quality of care initiatives within the Winnipeg Regional Health Authority. We have also recently started into orthopedic device innovation. All of this happens under one roof at the Hip and Knee Institute.
I want to talk a little bit about health system performance and tie in some manufacturing theory and how we've improved that. I'll give some examples around physician assistance, wait times for joint replacement, and quality of joint replacement at the time of hip fracture surgery.
Health system performance can be considered as access to care, appropriateness with the correct intervention for the correct patient at the correct time, effectiveness, both cost and clinical, as well as safety.
This is a drawing of our wait list for hip and knee replacement surgery back in 2005. You can see that of patients who had undergone surgery, many of them fell past that benchmark of 26 weeks, which is represented by the yellow line in the middle of the graph. So we really needed to fix this.
The theory of constraints tells you to identify bottlenecks in the process and apply resources to relieve that bottleneck, so that's what we started to do. We looked to find where the bottlenecks were.
In a typical eight-hour day, one orthopedic surgeon could do three joint replacements. There are quite a few steps involved in doing a joint replacement. You need to bring the patient into the room, get the room set up, anesthetize the patient, and then there's positioning, prepping, draping, and so forth. Actually putting in the joint replacement only consumed about two and a half hours in total out of that eight-hour day.
It was quite obvious to us that the surgeon was the bottleneck, and we needed to do something to improve that productivity. We looked at increasing productivity by employing physician assistants. Among many of the things they can do, they're excellent assistants in the OR. They can help with positioning, prepping, draping, and closure during the procedure.
What we did is started running what we call double rooms. We would have one surgeon with two rooms, and each room would have a physician assistant, an anesthesiologist, and a nursing team. This would allow the surgeon to get started in the first room while in the second room the patient was being brought into the room, the equipment set up, and so forth. When the surgeon was finished in the first room, he or she could walk over to the second room and do the next case. This allowed us to significantly improve our surgical throughput. We went from three patients a day up to seven patients a day.
That was really the only way for us to increase our primary joint replacement volumes, because we didn't have any more days in the week to operate. We were already busy Monday to Friday. So this is how we increased our volumes. We saw a 42% increase in our volumes, and our median wait times back then dropped from 44 weeks down to 30 weeks.
Another thing we looked at is hip fracture care. Back in 2005, Manitoba was not doing a very good job in getting hip fracture patients into surgery in a timely fashion. The national benchmark was 48 hours. Only 53% of our patients were making it into surgery within 48 hours. This compared rather poorly, I would say, to the national average of 65%, so we needed to do something.
We applied some Lean thinking to this problem. We determined what the customer values. The customer is the patient with the hip fracture, and I can tell you they valued getting into the surgery and having it done quickly. We identified the non-value-added things we were doing and aligned the activities to meet that goal of surgery within 48 hours.
First of all, we sought to understand the problem. We implemented some standardized tracking methods to determine where the delays were. We identified things such as Plavix, which is a blood thinner. We found patients were being delayed for surgery five to seven days for the Plavix to wear off.
On the issue of mandatory internal medicine consultation, it was the practice back then to have an internal medicine doctor see every single patient with a hip fracture when it really wasn't necessary. Fitness for surgery could be decided with the anesthesiologist and the orthopedic surgeon working together. Issues around OR time and surgeon availability were also apparent.
We sorted out the issue of Plavix with our anesthesia colleagues and their standards committee. We ran several grand rounds sessions to help convey the importance of the impact of delay on mortality and that reducing delay will improve mortality. We discussed the issue of Plavix and the mandatory medicine consultation. We modified some of the OR booking rules to allow these patients to get into surgery quickly. We had direct written communication of the sites and physicians, and we improved repatriation of patients to their home hospital.
This seemed to be quite effective. This is data showing the mean time to surgery, length of stay, and mortality before the intervention. You can see that patients waited an average three and a half days; length of stay was almost 30 days in hospital; and in-hospital mortality was 6.4%.
After we introduced those changes, we dropped our mean time to surgery to 1.8 days; the length of stay decreased to a little less than 25 days; and we dropped the in-hospital mortality to 5%. These were all statistically significant, so a good effect on length of time to surgery and on mortality.
I'm happy to report that we've improved significantly across Canada. In the last report, 87% of Manitoba patients received timely hip fracture surgery. This compares quite favourably to 80% for the rest of Canada.
We've also done some work with the regional joint replacement registry to improve the outcomes of hip and knee replacement surgery. We applied some principles of Lean Six Sigma, and it really depended upon the data and facts, collecting good data and reporting it back to the providers to improve care.
Our regional joint registry consists of preoperative data collected from patients, functional scores, and medical comorbidities. We collect data during the operation itself, on the procedure, details, the implant used, and so forth. One year after the operation we ask patients how they are doing, how their function is, had they any complications, what their satisfaction is, and whether they have had a revision. So we're asking patients about their outcome and interaction with the health care system.
This data is compiled into a yearly report that goes to the region, to the site, and to the surgeon, so they can each compare themselves to their peers as a whole.
I will draw your attention to one of the metrics we report on, and that is patient satisfaction. We have created a fictitious report for a surgeon to show that 83% of their knee patients were satisfied, yet 7% were unsatisfied. This data can be taken back to improve the quality of the care a surgeon delivers to patients—very useful information.
Another example of the results of this registry is a steady reduction in revision rates. You can see that we started the registry back in 2004. At the start of 2005 and up to 2009, we've seen a steady reduction in early revision rates of hip and knee replacements. This is a better outcome for patients and less cost to the health care system.
To innovate health care delivery, I truly think it is important to understand what the customer wants, what the patient needs—to measure it properly, report it clearly, and align care in order to deliver what is important. I also think it's important to hold health care providers accountable.
I'll talk briefly about the Orthopaedic Innovation Centre. In 2011, we received $2.5 million in a Western Economic Diversification grant. Our mandate is to create, commercialize, and license orthopedic medical technology in a multidisciplinary environment. We currently have 10 researchers utilizing grant-funded equipment.
It's been a very interesting journey for us. We found there is very good support of initial innovation and a little less so of product development and commercialization, which we're working on now. There is a smaller pool of venture capital in Canada compared to elsewhere. There are some intellectual property policies in academic centres that I think need to be updated. There are, of course, health care budgetary constraints, and always the risk of brain drain to the U.S., but we're certainly enjoying this new aspect of our work.
For future work, I think it's important that we strengthen the Canadian Joint Replacement Registry. I talked about a regional registry; there is a Canadian Joint Replacement Registry. We don't have mandatory data collection yet, but we're getting there. Once we move there with regular, clear, and concise reporting, we can improve the care for Canadians. I also think it's important to link with Health Canada for post-market surveillance of new implants, to see if they're failing.
Promoting integrated data-driven models of care is important. There are many good examples across Canada of this. In the orthopedic world, the Arthritis Alliance of Canada has developed a framework. The Bone and Joint Decade Canada has done a lot of good work around hip and knee replacements and hip fracture care.
I think that continued orthopedic device innovation, linking registry data with retrievable data, testing data to improve implants and implant design, and continuing to improve a climate for commercialization are important as well.
If I can leave you with one hopefully humorous thought, it's on the importance of data, because if you don't measure, you don't know what you're doing. Here I have a picture of me and one of our nurses in Nicaragua about a month ago. We were doing some medical relief work down there, and the Americans who joined us brought down some “greens” they thought they could leave for the Nicaraguans, but they weren't quite the right size. So if you don't measure, you don't know what you're doing.
I thank you for your attention, and I would be happy to entertain your questions.