CLASS II Device recall · Reported 19 Jun 2019 · FDA Enforcement Report

iTotal Hip Replacement System: Hbs-033-00xx recalled by Conformis

Conformis is recalling Conformis iTotal Hip Replacement System: Hbs-033-00xx-010101, (Hip-patient Specific Stem, distributed nationwide in the US. The recall was initiated on 29 Mar 2019 and the FDA has classified it as Class II.

Check your package

Lot, batch or date codesHBS-033-0010-010101: Serial Numbers:423398, 424244, 424392, 425455, 425607, 425755, 426309, 427186, 428901, 430404,430766, 431394,431844, 434871, 436520, 438363, 438925, 439064, 439561, 440369, 441662, 441734; HBS-033-0011-010101: Serial Numbers:422796, 424450, 424510, 426034, 426118, 430150, 430534, 431142, 431502, 431581, 432030, 433555, 434136, 434439, 435282, 436108, 436212, 437452, 437657, 437745, 437968, 440603, 442816; HBS-033-0012-010101: Serial Numbers: 425346, 425608, 425866, 427702, 427754, 429459, 429844, 430053, 430087, 432011, 432363, 436792, 437653, 438516, 439063, 440253; HBS-033-0013-010101: Serial Numbers: 422797, 424647, 425456, 426297, 427360, 427898, 428372, 428957, 429014, 429921, 429937, 430338, 430613, 430962, 433445, 434149, 434451, 434635, 435118, 436125, 436230, 436333, 437073, 438024, 438112, 439641, 439929, 441028, 441030; HBS-033-0014-010101: Serial Numbers: 423231, 425276, 426069, 426382, 427480, 427752, 427883, 428820, 428900, 431315, 431333, 431977, 432543, 432953, 434612, 435649, 435883, 435910, 436122, 437322, 437863, 438631, 440445; HBS-033-0015-010101: Serial Numbers: 429552, 432936, 433085, 437373, 437681, 437925, 439272 HBS-033-0016-010101 425418, 428545, 431199, 435657, 436790, 437425, 437656, 442745; HBS-033-0016-010101: Serial Numbers:425418, 428545, 431199, 435657, 436790, 437425, 437656, 442745
Quantity recalled128

Stop using the device if the notice says to, and contact the manufacturer or your healthcare provider for the correction or replacement.

Recall details

Recall number
Z-1775-2019
FDA event ID
82722
Recalling firm
Conformis, Billerica, MA
Classification
Class II
Status
Terminated
Recall initiated
29 Mar 2019
FDA classified
13 Jun 2019
Reported
19 Jun 2019
Type
Voluntary: Firm initiated
Customers notified by
E-Mail
Reason category
Other Reasons

Timeline

29 Mar 2019Recall initiated by company
13 Jun 2019Classified by FDA+76 days
19 Jun 2019Published in enforcement report+6 days

Companies usually start a recall weeks before the FDA classifies and publishes it; the gap above is that lag.

Reason for recall

Discrepancy of 3mm between the values displayed and approved by surgeons in iViews as the neck/head lengths and the resulting neck/head lengths in the manufactured implants.

Product as listed by the FDA

Conformis iTotal Hip Replacement System: HBS-033-00xx-010101, (HIP-PATIENT SPECIFIC STEM LEFT)

Where it was distributed

Nationwide

Nationwide

Questions about this recall

Is iTotal Hip Replacement System: Hbs-033-00xx-010101, (Hip-patient Specific Stem Left) recalled?

Yes. Conformis recalled iTotal Hip Replacement System: Hbs-033-00xx-010101, (Hip-patient Specific Stem Left) on 29 Mar 2019. The recall is Class II and its status is Terminated. Recall number Z-1775-2019.

Why was it recalled?

Discrepancy of 3mm between the values displayed and approved by surgeons in iViews as the neck/head lengths and the resulting neck/head lengths in the manufactured implants.

Which lots are affected?

HBS-033-0010-010101: Serial Numbers:423398, 424244, 424392, 425455, 425607, 425755, 426309, 427186, 428901, 430404,430766, 431394,431844, 434871, 436520, 438363, 438925, 439064, 439561, 440369, 441662, 441734; HBS-033-0011-010101: Serial Numbers:422796, 424450, 424510, 426034, 426118, 430150, 430534, 431142, 431502, 431581, 432030, 433555, 434136, 434439, 435282, 436108, 436212, 437452, 437657, 437745, 437968, 440603, 442816; HBS-033-0012-010101: Serial Numbers: 425346, 425608, 425866, 427702, 427754, 429459, 429844, 430053, 430087, 432011, 432363, 436792, 437653, 438516, 439063, 440253; HBS-033-0013-010101: Serial Numbers: 422797, 424647, 425456, 426297, 427360, 427898, 428372, 428957, 429014, 429921, 429937, 430338, 430613, 430962, 433445, 434149, 434451, 434635, 435118, 436125, 436230, 436333, 437073, 438024, 438112, 439641, 439929, 441028, 441030; HBS-033-0014-010101: Serial Numbers: 423231, 425276, 426069, 426382, 427480, 427752, 427883, 428820, 428900, 431315, 431333, 431977, 432543, 432953, 434612, 435649, 435883, 435910, 436122, 437322, 437863, 438631, 440445; HBS-033-0015-010101: Serial Numbers: 429552, 432936, 433085, 437373, 437681, 437925, 439272 HBS-033-0016-010101 425418, 428545, 431199, 435657, 436790, 437425, 437656, 442745; HBS-033-0016-010101: Serial Numbers:425418, 428545, 431199, 435657, 436790, 437425, 437656, 442745

Where was it sold?

Nationwide

What should I do if I have it?

Stop using the device if the notice says to, and contact the manufacturer or your healthcare provider for the correction or replacement.

What does Class II mean?

Class II means the product may cause temporary or medically reversible health problems, or the probability of serious harm is remote.

Read the official FDA notice · Source record retrieved 21 Sep 2026. The FDA describes openFDA data as unvalidated; the official notice takes precedence. This page reports the record and gives no medical advice.

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