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FDA Devices Verify with FDA Devices → Moderate Class II Terminated

The Rheo Knee bionic prosthetic is to be used exclusively for fittings of lower extremity amputations. RHEO KNEE uses Artificial Intelligence to continuously adapt to the users walking style and environment. The RHEO KNEE recognizes and responds immediately to changes in speed, load and terrain, restoring the users ability to walk naturally, comfortably and confidently at any speed.

Reported: April 1, 2015 Initiated: February 26, 2015 #Z-1322-2015 4715 units (2 units affected) units

Ossur H / F issued this FDA Devices recall on April 1, 2015. Classified as Moderate severity (Class II). Approximately 4715 units (2 units affected) units are affected. The recall was issued because: The firm is recalling Rheo Knee bionic prosthetic due to it being discovered during an internal audit of the service li…. This recall notice is sourced from official FDA Devices enforcement records. Below you will find the complete product description, hazard information, remedy instructions, and related recalls from the same manufacturer or product category.

Recall Insight

This FDA Devices action (record #Z-1322-2015) was formally reported on April 1, 2015, with the manufacturer initiating the action on February 26, 2015. It is classified under Moderate severity (Class II), with a current status of Terminated. Ossur H / F is listed as the recalling firm, operating out of Reykjavik. Federal records indicate 4715 units (2 units affected) units are affected.

The documented reason for this recall is: The firm is recalling Rheo Knee bionic prosthetic due to it being discovered during an internal audit of the service line that devices were released for distribution without fully going through the assembly process. Distribution data in the federal record shows the product reached: Worldwide distribution: US distribution in TN and country of: Austria.. Distribution scope directly affects the consumer exposure window and determines whether a recall remains regional or escalates into a nationwide advisory.

To put this record in context, PlainRecalls indexes 83,949 recalls across the FDA, CPSC, NHTSA and USDA FSIS going back to 1995. Within the same product category, the database holds 6 closely related recalls, of which 6 were also issued by FDA Devices. That clustering is a signal — repeated actions in a narrow category often indicate a systemic quality-control issue, a supplier-wide contamination, or a design defect that has propagated across product lines. This recall is roughly 11 years old; older recalls can remain relevant because many units enter resale, rental, and secondary-market channels where the original warning never reaches the end user. Always cross-check the recall number against the official agency page before relying on any summary.

Recall Distribution by Severity Class

Severity1Class I (Critical)Class II (Moderate)Class III (Low)
Recall Distribution by Severity Class

Severity

Moderate

Units Affected

4715 units (2 units affected)

Related Recalls

6

6 from same agency

Product Description

The Rheo Knee bionic prosthetic is to be used exclusively for fittings of lower extremity amputations. RHEO KNEE uses Artificial Intelligence to continuously adapt to the users walking style and environment. The RHEO KNEE recognizes and responds immediately to changes in speed, load and terrain, restoring the users ability to walk naturally, comfortably and confidently at any speed.

Reason for Recall

The firm is recalling Rheo Knee bionic prosthetic due to it being discovered during an internal audit of the service line that devices were released for distribution without fully going through the assembly process.

Details

Recalling Firm
Ossur H / F
Units Affected
4715 units (2 units affected)
Distribution
Worldwide distribution: US distribution in TN and country of: Austria.
Location
Reykjavik

Recall Profile

Structured summary of the FDA Devices recall record
Attribute Value
Agency U.S. Food and Drug Administration
Severity class Moderate (Class II)
Status Terminated
Recall number Z-1322-2015
Date reported April 1, 2015
Date initiated February 26, 2015
Recalling firm Ossur H / F
Units affected 4715 units (2 units affected)
Distribution Worldwide distribution: US distribution in TN and country of: Austria.

Profile values are sourced directly from the official FDA Devices enforcement record. Source: U.S. Food and Drug Administration.

Scale of Impact

4715 units (2 units affected) units affected — limited or regional distribution scale.

Regional (<10K units)
Multi-state (10K – 100K units) ✓ This recall
Large-scale (100K – 1M units)
Massive (≥1M units)

Bracket cutoffs follow federal recall-disclosure conventions; bar widths scale linearly within each bracket. Source: PlainRecalls analysis of U.S. Food and Drug Administration filings.

Frequently Asked Questions

What product was recalled?
The Rheo Knee bionic prosthetic is to be used exclusively for fittings of lower extremity amputations. RHEO KNEE uses Artificial Intelligence to continuously adapt to the users walking style and environment. The RHEO KNEE recognizes and responds immediately to changes in speed, load and terrain, restoring the users ability to walk naturally, comfortably and confidently at any speed.. Recalled by Ossur H / F. Units affected: 4715 units (2 units affected).
Why was this product recalled?
The firm is recalling Rheo Knee bionic prosthetic due to it being discovered during an internal audit of the service line that devices were released for distribution without fully going through the assembly process.
Which agency issued this recall?
This recall was issued by the FDA Devices on April 1, 2015. Severity: Moderate. Recall number: Z-1322-2015.
Where was the recalled product distributed?
Distribution: Worldwide distribution: US distribution in TN and country of: Austria..
How do I check if my product is affected by a recall?
Check the product description and recall number (Z-1322-2015) against your product. Visit the official FDA Devices website for the most current information. You can also use our Recall Checker tool to search by product name or brand.
Should I stop using a recalled medication or medical device?
Do not stop using a recalled medication or device without consulting your healthcare provider first, as abruptly discontinuing treatment could pose its own health risks. Your doctor can advise on alternatives or whether the recall applies to your specific product lot. Check the recall number and lot information against your product packaging.

Recall Context

Product recalls are issued when a manufacturer, distributor, or federal agency determines that a product poses a safety risk to consumers. This recall is classified as moderate severity, indicating the product may cause temporary or medically reversible health consequences. Across PlainRecalls, we track 83,000+ recalls from FDA, CPSC, and NHTSA to help consumers stay informed and act quickly when safety issues arise.

Nearby Recalls in This Category

Other recalls in the same product category — useful for spotting patterns across the same defect class or manufacturer.

Compare this recall with Endo-Model Replacement Plateau; Item Number: 15-0027/11; →

Data Sources

Data as of 2025. Source: FDA, CPSC, NHTSA, USDA FSIS federal recall databases.

  • Source: FDA — Food and Drug Administration, openFDA Enforcement API (food, drug, and medical device recalls)
  • Source: CPSC — Consumer Product Safety Commission Recalls API (consumer product recalls and hazards)
  • Source: NHTSA — National Highway Traffic Safety Administration Recalls API (vehicle safety recalls)
  • Source: USDA FSIS — Food Safety and Inspection Service (meat, poultry, and egg product recalls)

Recall information is sourced from official federal agency databases. Always verify recall details with the issuing agency for the most current status. This information is for research and awareness purposes only.

All federal data sources used on this page

Source: Federal recall agencies (FDA, CPSC, NHTSA, USDA FSIS) Aggregated multi-agency recall feeds · 2024 Recall data normalized across federal agency feeds; severity classifications follow each agency's own taxonomy (FDA Class I/II/III; CPSC, NHTSA, USDA FSIS).