Intraoperative Data Capture
Capture tension measurements, flexion angles, and other surgical data in real-time.Tension Measurements
Understanding Tension Values
Tesa devices measure graft tension in Newtons (N):- Low Tension - Below optimal range
- Optimal Range - Target tension for graft fixation
- High Tension - Above recommended range
Recording Measurements
In Live mode, measurements are captured automatically when you:- Position the tensioner
- Apply tension to the graft
- Lock the reading
Using the Slider Modal
Open the slider modal for precise tension and angle input using one of two methods:- Tap the input field - Tap either the Newtons or Degrees text field
- Tap the slider button - Tap the slider icon (tune button) next to the measurement cycle/readings display
Select Ligament
Choose a ligament from the dropdown before recording. The modal will not open without a ligament selected.
Open the Modal
Tap either the Newtons or Degrees text field, or tap the slider button next to the cycle display
Adjust Sliders
Use the vertical sliders to set tension (0-80N) and angle (0-150°). You can also tap the value display to type a specific number directly.
Quick-Set Angle
Use the quick-set chip buttons (0°, 30°, 60°, 90°, 120°, 150°) beside the angle slider to jump to common flexion angles.
Fine-tune Values
Tap the up/down arrows for single-unit adjustments, or tap the value display box to type an exact number
Using the Grid Entry Modal
The grid entry modal provides a spreadsheet-style interface for entering multiple readings at once across standard flexion angles.- Tap the grid button - Tap the grid icon next to the slider button in the measurement cycle/readings display
Select Ligament
Choose a ligament from the dropdown before recording. The modal will not open without a ligament selected.
Enter Tension Values
Type tension values (in Newtons) for each angle row. The grid has pre-set rows for 0°, 30°, 60°, 90°, 120°, and 150°. If using dual tensioners, both T1 and T2 columns are shown.
Set Fixation (Optional)
Tap the radio button in the Fix column to mark one row as the fixation point. Tap it again to deselect if chosen inadvertently.
Measurement Cycle Management
The modal header shows the current measurement cycle with a count of saved readings:- Measurement Cycle pill - Displays “Measurement Cycle X (Y saved)” showing the current cycle and how many readings have been recorded
- Increment button (+) - Tap to start a new measurement cycle
- CKM count - Enter the number of Cyclic Knee Motions (CKMs) performed before this measurement cycle
- Cycle persistence - The modal opens on the highest cycle number you’ve recorded
Cyclic Knee Motions (CKMs)
Between measurement cycles, surgeons typically perform Cyclic Knee Motions — full range-of-motion pumps to condition the graft. You can record the CKM count for each measurement cycle:- In the Slider Modal - Enter the CKM count in the text field next to the “CKMs” label in the measurement cycle header
- In the Grid Modal - Enter the CKM count in the same location in the grid modal header
- The CKM count is saved automatically when you save a reading
- Chart legend - Shows CKM count in brackets next to each cycle label (e.g., “C2:3m (5 CKMs)”)
- Data tab - Shows a “Round X Cyclic Knee Motion Count: Y” row above each measurement cycle’s readings
Fixating a Reading
To mark a reading as the final fixation point:Mark as Fixated
Slider modal: Tap the Unfixated button below the tension slider - it changes to Fixated.
Grid modal: Tap the radio button in the Fix column for the appropriate angle row.
- A lock icon appears on the main page next to the cycle/readings display
- The fixated tension and angle values are shown in the text fields
- The cycle increment button is disabled
Fixation Locking Effects
Once a tensioner has a fixated reading, several controls become disabled to prevent accidental changes:| Control | Effect When Locked |
|---|---|
| Tension slider | Disabled - cannot adjust newtons value |
| Angle slider | Disabled when ALL tensioners are locked |
| Cycle (+) button | Disabled - cannot add new cycles |
| Tensioner Readings (voice) | Disabled when ALL tensioners are locked |
The SAVE button remains enabled while you are setting up a fixated reading. It only disables after the fixated reading has been saved. Case Note voice recording also remains available regardless of fixation state.
Unlocking a Fixated Reading
If you need to change the fixation point or record additional cycles:Open the Chart
Tap the chart icon next to the cycle/readings display to open the Tension Through RoM modal
Delete Fixated Reading
Find the fixated reading (marked with a red indicator) and tap the X button to delete it
Voice Recording
The floating microphone button enables hands-free input. Tap the microphone to choose what you want to record:Case Note
Opens the standard note editor where you can dictate observations:Tensioner Readings
Record tension and angle measurements using voice commands:Voice Command Syntax
| Command | Example | Result |
|---|---|---|
| Basic reading | ”30 degrees 15 pounds” | Records angle 30°, tension 15 |
| With tensioner | ”Tensioner 1, 45 degrees, 20 pounds” | Records to specific tensioner |
| Fixation | ”Fixate 30 at 15” | Records as fixated reading |
| Multiple readings | ”30 at 15, 45 at 18, 60 at 20” | Records several readings |
| Set cycle | ”Cycle 2” | Sets cycle number to 2 |
| Set measurement cycle | ”Measurement cycle 3” or “Measurement 3” | Sets measurement cycle to specified number |
| New cycle | ”New cycle” or “Next cycle” | Increments cycle by 1 |
| New measurement | ”New measurement” or “Next measurement” | Increments measurement cycle by 1 |
| Set CKM count | ”After 10 cycles” or “10 CKMs” | Sets CKM count for the current cycle and saves to DB |
| Set CKM count (alt) | “After 10 pumps” or “10 pumps” | Sets CKM count for the current cycle and saves to DB |
| Ligament selection | ”ACL”, “PCL”, “MCL”, “LCL”, “MPFL”, “ALL” | Selects the specified ligament |
Voice guidance text is displayed above the sound wave animation while recording tensioner readings, showing the expected command format.
Range of Motion Measurement Cycles
Measurement cycles allow you to track multiple range-of-motion passes through the joint. Each measurement cycle represents a complete sweep through the range of motion, typically separated by Cyclic Knee Motions (CKMs).Why Use Measurement Cycles?
During surgery, you may need to:- Check tension at multiple points before final fixation
- Compare tension patterns across different conditioning passes
- Document how the graft responds over successive range-of-motion cycles
- Track the number of CKMs performed between each measurement cycle
Recording Measurement Cycles
Start Recording
Begin with Measurement Cycle 1 (default) and record your first pass through the range of motion
Start New Cycle
Say “new cycle”, “new measurement”, or “next measurement” via voice command, or tap the + button in the modal’s cycle pill. Enter the number of CKMs performed in the CKM field, or say “after 10 cycles” or “10 CKMs” to set the count by voice.
Understanding the Cycle Display
Each measurement cycle appears as a separate line on the chart:| Cycle | Color | Line Width |
|---|---|---|
| Measurement Cycle 1 | Purple | 1px |
| Measurement Cycle 2 | Blue | 2px |
| Measurement Cycle 3 | Green | 3px |
| Measurement Cycle 4+ | Orange | 4px |
Flexion Angles
Record the knee flexion angle at each tension measurement. The angle slider ranges from 0° to 150° with quick-set buttons for common positions:| Angle | Position |
|---|---|
| 0° | Full extension |
| 30° | Slight flexion |
| 60° | Moderate flexion |
| 90° | Deep flexion |
| 120° | Deep flexion |
| 150° | Maximum flexion |
Tension Through RoM Chart
View tension measurements plotted against joint angle in a tabbed modal interface.Chart Tab
The chart displays tension readings with:- Colored lines - Each measurement cycle shown in a different color (purple, blue, green, orange)
- Line thickness - Increases from 1px to 4px based on cycle number
- Red dot - Fixated reading indicating final fixation point
- Legend - Shows cycle numbers with time elapsed and CKM count (e.g., “C1:0m”, “C2:3m (5 CKMs)“)
Data Tab
View all readings in a sortable list:- Format -
[cycle] tensionN at angle° [attachment] - Sorting - By cycle number, then by angle ascending
- CKM rows - A “Round X Cyclic Knee Motion Count: Y” row appears above the start of each measurement cycle (cycle 2+) showing how many CKMs were performed before that cycle
- Delete - Remove individual readings with the X button
Fixation Rules
To fixate a reading:- Open the slider modal by tapping the Newtons or Degrees field, or by tapping the slider button next to the cycle display
- Set the tension and angle values using the sliders
- Tap the Unfixated button to change it to Fixated
- Tap SAVE - the modal closes automatically
- Open the grid modal by tapping the grid button next to the slider button
- Enter tension values for your angle rows
- Tap the radio button in the Fix column for the fixation row
- Tap SAVE
Adding Notes
Document surgical findings during the procedure:Capturing Images
Add visual documentation to the procedure:Camera Capture
- Click Camera to take a photo
- Image is automatically attached to the procedure
DICOM Upload
- Upload medical imaging files (X-ray, MRI, CT)
- View DICOM images with multi-frame support
- Images are securely stored with the procedure record
Recording Status Indicators
| Indicator | Meaning |
|---|---|
| Blue microphone | Ready to record |
| Red microphone | Recording in progress |
| Animated soundwave | Voice capture active |
| Spinning indicator | Processing transcription |