Blog

The latest news from our practice.

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04/Mar/2026

MAKO robot

Building on Humber River Hospital’s leading robotic surgery program, we are proud to be using our newly arrived MAKO robot to help perform partial knee replacements.  This robot helps surgeons perform the surgery with precision that is not possible without the robot.

  • All patients who are candidates for partial knee replacements with Dr. Cayen moving forward will have the benefit of this technology.
  • In order for the surgeon to map out your knee for the robot, all patients who have a MAKO partial knee replacement will have a CT scan arranged within a few weeks of their surgical date
  • Please read about partial knee replacements here.

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25/Jul/2022

Hip Navigation
We are proud to announce the adoption of Computer Navigation to Anterior Hip Replacement surgery at Humber River Hospital.  Using a special camera and computer, surgeons are now able to more precisely track leg lengths and hip position during the procedure.  Surgeons are able to use this camera by using only two tiny incisions (each 1/4 of an inch in size) over the opposite pelvis during the procedure.  The hip replacement is then performed as usual through the anterior approach.  At the time of this writing, Humber River Hospital is the only public hospital in Canada to boast this Canadian technology for anterior hip replacements.      We are proud to partner with Intellijoint Surgical in this endeavour.  Thus far we have performed a few hundred cases using this high tech equipment and going strong!

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20/Jul/2022

Patient waiting

“Do I have a date for my surgery?”

Short answer:  When you sign consent for surgery, you will likely not, get a date for surgery at that time.

Long answer

As of now, the wait for surgery from the time you signed consent is approximately 8 months.  We only get Dr. Cayen’s surgical dates from our administrators about 3 months ahead of time.  That means we can’t give you a date when you sign consent.

Please wait for our office to call you for your surgical date.  Please do not call the office asking for a date, if you do not yet have one.  Don’t worry, we have you on our list, if you signed consent.

If you’ve signed consent without being sure if you want to go ahead with surgery, and you’ve finally decided that you want to proceed, then call the office to be placed on the list.  Dr. Cayen may want to see you again prior to surgery in order to review the risks and benefits of surgery with you.

Please note that once you get called for your surgical date:

  • We will arrange for you to be seen in the pre-admission before your surgery
  • Please let us know if you are feeling unwell prior to your pre-admission clinic appointment.  We will let you recover prior to your surgery and you will NOT go to the back of the line.
  • You will be allowed one visitor to accompany you to your surgery.
  • Knee replacements, hip replacements will be done under a spinal anesthetic, if possible.
  • Expect to leave hospital the same day of surgery.
  • One visitor is allowed on the wards at this time, if you were to be admitted.

 


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16/Nov/2020

Dr. Cayen is pleased to announce that he is currently performing Robotic-Assisted Total Knee Replacements.  Humber has acquired the ZimmerBiomet ROSA robot, the first ROSA robot in Canada.  This advanced piece of technology uses x-rays to create a 3-dimensional map of a patient’s leg, and uses that data to help the surgeon better “balance” a knee replacement.  Traditionally, surgeons use a 2-dimensional x-ray and “feel” the balance in the knee during the procedure.  The ROSA robot however uses data collected before and during surgery to help the surgeon dial-in a balanced knee.  At the time of writing, all patients receiving Total Knee Replacements with Dr. Cayen will receive the benefit of this technology.  No need to ask!

Currently at Humber River Hospital, Drs. Rodriguez, Heller and Cayen are performing knee replacements using the ROSA robot.

Dr. Cayen would like to thank ZimmerBiomet, Dr. Rodriguez and the Humber Administration for championing the effort to acquire this exceptional piece of advanced technology.

 

 

ROSA
ZimmerBiomet ROSA Robot

26/Jul/2020

Building from the success of our Same Day Hip Replacement program, Humber River Hospital has launched a Same-Day KNEE Replacement Program (SKiP).  Now, patients do not need to stay overnight in hospital after a knee replacement.  Given the current environment, this is welcome news for patients who need knee replacement surgery, but want to keep their hospital stay as short as possible.

What Makes Same Day Knee Replacement Possible at Humber River Hospital?

Our entire surgical team and the patient is involved to accelerate the initial phases of recovery after knee replacement:

  • Our anesthesiologists are using a short-acting spinal anesthetic, which makes patients comfortable during the surgery, but wears off fast enough to allow patients to walk the same day.
  • The surgeon injects a mixture of local anesthetic into the patient’s knee during surgery.
  • Patients receive a special combination of medications to decrease nausea after surgery.
  • Our physiotherapists are now staying at work later in the day in order to get patients up walking after surgery.
  • The anesthesiologist administer a special nerve block just prior to the knee replacement.  The patient then takes home a bottle with local anesthetic, which will deliver pain medication directly to the knee for 3 days after surgery.
  • The anesthesiologist gives the patient a call in the days after surgery to see if they’re having any trouble with the local anesthetic bottle.
  • The patient is instructed how to remove the catheter from the thigh on the third day after surgery.  (It’s pretty simple: Pull out the filament, apply pressure with gauze for 2 minutes then apply a simple band-aid.)
  • A handout for patient information can be found here.  Please note, different surgeons will provide slightly different medication prescriptions for patients to take at home.


DISCLAIMER: The information on this website is intended to help current and prospective patients of Dr. Cayen understand joint disease as well as treatment options available.  It is also meant to provide background information to prospective patients such that their visit with their doctor is most helpful. This website is not meant to provide specific medical advice, treat or diagnose any medical condition.  It is not meant to take the place of a visit with your doctor or Dr. Cayen.



About Dr. Cayen


Dr. Barry Cayen is an orthopedic surgeon at Humber River Hospital, specializing in adult hip and knee replacements, sports surgery of the knee, and trauma. He performs Total Hip Replacement Surgery using the Direct Anterior approach with a Hana table.




Contact


Phone:
(416) 479-8969

Address:
3695 Keele St., 2nd Fl.
North York, ON M3J 1N2
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