Daniel A. Carestio
President and Chief Executive Officer at STERIS
Thanks, Mike, and good morning everyone.
Thank you for making the time to join us to hear more about our fiscal 2022 performance and our outlook for fiscal year 2023. As I look back on the year of fiscal 2022, it was a remarkable year for STERIS. Not only did we navigate year two of a global pandemic but we also completed the acquisition of Cantel while integrating key surgical and successfully transitioned leadership, all while growing faster than anticipated.
I want to start by thanking the people of STERIS for all they have done and continue to do, to support our customers and each other. Without all of you, we would not be where we are today. We started fiscal 2022, with an expectation of 8% to 9% constant currency organic revenue growth for the year. After increasing our outlook twice this year, we ended the year with 13% constant currency organic revenue growth, well above our increased outlook. This growth was driven by continued outperformance of our AST segment, double-digit growth in healthcare and solid mid single-digit growth in the Life Sciences. While Dental is not yet included in the constant currency organic revenue growth, the segment grew 4% year-over-year since the time of acquisition in June.
From a profit perspective, we ended the year with operating margins up 100 basis points despite absorbing about $45 million in unplanned supply chain and inflation costs related to labor. Helping to offset those costs, we were successful in overachieving our fiscal 2022 cost synergies targets for the Cantel acquisition, which added approximately $40 million to our fiscal 2022 results. Adjusted earnings per diluted share of $7.92 increased 28% compared with fiscal 2021 and reflect a new record for STERIS.
Turning to fiscal 2023, at a high level, we expect another very strong growth year for our business. Our outlook for total revenue calls for approximately 12% growth which includes two additional months of the Cantel acquisition, offset by the impact of the Renal Care divestiture, as well as approximately $30 million in unfavorable foreign currency. Excluding all that, we anticipate constant currency organic revenue growth of approximately 11%.
Importantly, this outlook assumes that the procedure volumes will normalize in the U.S. and that we do not experience any significant wave of disruption from COVID. Our constant currency organic revenue outlook reflects volume growth and includes 200 basis points of favorable pricing. Pricing is essential to help offset the increased cost year-over-year. For fiscal 2023, we expect an incremental $70 million, in extraordinary supply chain and labor inflation cost above the $45 million we occurred in fiscal 2022. This is in addition to our normal low single digit annual inflation amounts all is included in our outlook, which we will work to overcome every year.
In addition to the anticipated headwinds from supply chain and inflation, our fiscal year 2023 operating expenses will be higher as we get back to spending on travel, sales and marketing and other expenses. R&D spending is also anticipated to be higher as we continue to develop and bring new products to our customers. Offsetting those headwinds to some extent will be cost synergies from the integration of Cantel which is expected to be incremental by approximately $50 million from the fiscal 2022 levels. By the end of fiscal 2023, we will be approaching $100 million in total cost synergies achieved.
Taking into consideration all of the puts and takes, we expect to show modest operating margin growth in fiscal 2023. Our full year earnings per diluted share outlook is anticipated to be in the range of $8.55 to $8.75 or 8% to 10% growth over fiscal 2022. Given all the moving pieces, we are pleased with this bottom line growth outlook. As usual, the range does provide us some conservatism on the low end but given all the uncertainties that exists, we believe it is warranted.
All in all, fiscal 2023 is expected to be another record year for STERIS. Our teams and our portfolios continue to come together to better meet the needs of our customers. And the breadth of our offering allows us to take advantage of several significant trends in the industry by leveraging our relationships to cross-sell within the business segments. I recently shared with our sales team and our first-in-person global meeting in three years that we honestly believe that STERIS is positioned better today to meet the needs of our customers than ever before in history.
That concludes our prepared remarks for the call. And Julie, please give the instructions so we can begin the Q&A.