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Discover Orthosium

Track your prescribed recovery
Many sports injuries require a weight-bearing protocol, which is a structured plan to gradually reintroduce weight on the injured area as part of the rehabilitation process. These protocols are crucial for safe healing and regaining function. Common injuries that typically require a weight-bearing protocol include:
 
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  • Fractures (especially in the lower extremities)

    • Tibia, fibula, femur, foot, and ankle fractures (e.g., stress fractures, Jones fractures).

  •  Ligament injuries

    • ACL, MCL, or PCL tears (knee)

  • Ankle sprains (moderate to severe)

    • Initial rest followed by gradual loading to promote ligament remodeling.

  • Post-surgical recovery

    • Meniscus repair, cartilage surgery (e.g., microfracture, ACI), or joint replacement.

  • Tendon injuries

    • Achilles tendon ruptures (surgical or conservative treatment)

  • Joint dislocations or subluxations

    • Especially hip, knee, or ankle, after reduction and immobilization.

  • Post-casting or immobilization atrophy

    • Even in cases without fracture, after long immobilization, reintroducing weight-bearing must be gradual.

Customize Your Recovery

This prescribed protocol is individualized based your specific injury, and would be managed by your healthcare team.

As an athlete, the period immediately after an injury is crucial for a proper recovery. â€‹
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The chart below outlines a typical weight-bearing progression timeline for tendon injuries, particularly Achilles tendon and patellar tendon injuries, which are common in sports.

The exact timing may vary based on surgical vs. non-surgical management, the athlete's healing response, and the protocols of their healthcare team.

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What is the CastOff System?

Our solution is simple! The CastOff system is based on a sensor-based insole fitted in the patient’s shoe or walking boot. The information is gathered by the "Pod" attached to the patient's ankle.
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The clinician, or caregiver will create a patient profile to set up the weight bearing protocol. 

Once the set up is complete, the Pod will alert, through sounds and vibrations when the patient has exceeded their prescribed weight limit.

The patient’s smartphone alerts & tracks recovery and provides a visual display of progress

Meet Our Team

Discover the dedicated professionals behind orthosium.com, bringing expertise and innovation to the medical equipment industry. Each member is committed to excellence and advancing healthcare.

Dr. David Wasserstein, Co-founder

Orthopaedic Surgeon

UofT: Orthopaedic Sports Medicine (UTOSM) faculty

Sunnybrook Health Sciences Centre

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Ron Hurtig, P.Eng,

Co-founder

35 years of new product development experience. Specializes in concept to commercialization.

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Neil D’Cruz, 

Business  Advisor 

Healthcare executive with over 20 years of Canadian, US and international healthcare and management consulting experience.

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Dr. Oleg Safir,

Co-founder

Orthopaedic Surgeon,

Mt Sinai hospital, Study Principal Investigator.

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Sophia Li,

Scientific Advisor 

Staff scientist and Strategic Partnerships Manager at the KITE Research Institute. 

Installing the PodTracker  App. 

iPhones

This app currently runs under TestFlight, the iOS site for new software. Please click here

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This will go through the steps to install TestFlight followed by the latest PodTracker App.  Please scroll below on 'Running the App'. 

Android-based

Smartphones

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To download the app, please click here

and select 'Download' to save the file. To start the installation, go to  your download directory and click on the file name 'PodTracker_' where the date indicates the curently latest Version.   

 

On newer Android versions:

You may be told the file does not have a preview to show.  - Please click  'Download' and when complete click on 'Open' followed by Install.  â€‹

Running the App

Once installed and opening the app for the 1st time it will prompt with  "Allow PodTracker to access this device's location". Please click ALLOW, the  App does not use this resource.

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Enter the activation code that was sent in the email from the clinician. If Bluetooth is 

off, you will be prompted to turn on. 

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If the Pod does not connect, please close the app and reopen. 

​To download the PodTracker User Guide please click here

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