Square Nut MR Safe, Catalog Number 03.311.060 recallZ-1324-2009 · Synthes Spine · initiated Feb 9, 2009
Terminated All recalls posted in May 2009
Is my device affected?
- Compare the model, catalog and lot or serial numbers on your device or its packaging with the code information below. A recall usually covers only specific models or lots.
- If yours is listed, follow the instructions from Synthes Spine or your healthcare provider. The company's action is summarized under what the company is doing.
- Do not stop using a prescribed or implanted device on your own — talk to your healthcare provider first.
Where to find your model and lot numbers · What recall classes and statuses mean
Why it was recalled
Numbers are etched incorrectly on the product.
FDA root cause category: Process control
What the company is doing
An "Urgent: Medical Device Recall" letter dated February 6, 2009 was sent to all affected Synthes Trauma Sales Consultants via USPS certified mail on February 09, 2009 and affected In House employees were notified via return receipt email on February 09, 2009. All affected hospitals were notified of the recall through a notification letter mailed via USPS certified mail on February 09, 2009. The notification letter described the affected product, issue and actions for recipients. Direct questions about the recall to Synthes Spine by calling 800-620-7025, Extension 5455 or 610-719-5455.
Recall details
- Recall number
- Z-1324-2009
- Recall class
- Not yet classified by the FDA
- Status
- Terminated
- Initiated by the company
- Feb 9, 2009
- Posted by the FDA
- May 29, 2009
- Recalling firm
- Synthes Spine
- Quantity
- 1,137 units
- Product code
- KTT
- FDA submissions
- K051600
- Distribution
- Worldwide Distribution -- US (states of AR, CA, CO, CT, FL, IA, IL, LA, MD, ME, MI, MN, MS, NJ, NY, OK, PA, SC, TX, and UT) and country of Switzerland.
Product description
Square Nut MR Safe, Catalog Number 03.311.060. The Square Nut MR Safe is used in conjunction with Synthes Distraction Osteogenesis Ring Systems. It can be used to secure components together or as a means of bone distraction/compression. Each side of the Square Nut is etched with a number, 1-2-3-4, which can be referenced during distraction/compression. Distraction of bone typically occurs a a rate of 1mm/day. The patient may be instructed to turn the nuts 1/4 turn four times per day, accomplishing 0.25mm per 1/4 turn. The etched numbers offer reference points to the surgeon who instructs the patient on distraction technique.
Code information (models, lots, serial numbers)
Lot Numbers: UR76230, US89403, US94671, US97826, 5674035, US90907, US94396 AND US97022.
Other devices under the same FDA submission
10 devices cleared under K051600 — the recall does not name any of them by identifier. One submission often covers many models, so they may or may not be affected.
- NA 03.311.042Synthes GmbH · APPLIANCE, FIXATION, NAIL/BLADE/PLATE COMBINATION, MULTIPLE COMPONENT34 reports
- NA 03.311.032Synthes GmbH · APPLIANCE, FIXATION, NAIL/BLADE/PLATE COMBINATION, MULTIPLE COMPONENT3 reports
- NA 03.311.043Synthes GmbH · APPLIANCE, FIXATION, NAIL/BLADE/PLATE COMBINATION, MULTIPLE COMPONENT2 reports
- MAXFRAME 03.313.879Synthes GmbH · Software for diagnosis/treatment2 reports
- NA 03.311.058Synthes GmbH · APPLIANCE, FIXATION, NAIL/BLADE/PLATE COMBINATION, MULTIPLE COMPONENT1 report
- NA 03.311.240Synthes GmbH · APPLIANCE, FIXATION, NAIL/BLADE/PLATE COMBINATION, MULTIPLE COMPONENT1 report
- NA 03.311.250Synthes GmbH · APPLIANCE, FIXATION, NAIL/BLADE/PLATE COMBINATION, MULTIPLE COMPONENT1 report
- NA 03.311.406Synthes GmbH · APPLIANCE, FIXATION, NAIL/BLADE/PLATE COMBINATION, MULTIPLE COMPONENT1 report
- NA 03.311.450Synthes GmbH · APPLIANCE, FIXATION, NAIL/BLADE/PLATE COMBINATION, MULTIPLE COMPONENT1 report
- MAXFRAME 03.313.880Synthes GmbH · Software for diagnosis/treatment1 report
Sources and updates
- Recall record: FDA Medical Device Recalls, file dated Oct 16, 2026 · View the FDA recall notice ↗
- Devices: FDA GUDID, file dated Oct 13, 2026. Devices are linked when their identifier (with a valid check digit) appears in the recall's code information.
- Page last rebuilt: Oct 18, 2026. Text above is shown as published by the FDA.
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