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ZIMMER GMBH BIOLOX® DELTA, CERAMIC FEMORAL HEAD, XL, 32/+7, TAPER 12/14; BIOLOX DELTA CERAMIC FEMORAL HEAD
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| Model Number |
N/A |
| Medical Device Problem Code |
Device Dislodged or Dislocated (2923)
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| Health Effect - Clinical Code |
Failure of Implant (1924)
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| Date of Event |
05/28/2018
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Type of Reportable Event
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Serious Injury
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Additional Manufacturer Narrative
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Concomitant medical products and therapy date detail of product: item number: 010000770, item name: g7 10 deg arcomxl liner 32mm d, lot # 3199692; item number: 010000662 item name: g7 pps ltd acet shell 50d, lot #3654474.The manufacturer received x-rays and other source documents for review.The manufacturer did not receive the device for investigation.The device history records were reviewed and found to be conforming.Additional information has been requested and is currently not available.A cause for this specific event cannot be ascertained from the information provided.As soon as supplemental information becomes available, an updated report will be submitted.Zimmer biomet¿s reference number of this file is (b)(4).
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Event or Problem Description
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A patient is pursuing a product liability claim due to revision surgery following repetitive luxations.
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Additional Manufacturer Narrative
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This follow-up report is being filled to relay investigation result.Additional and corrected information are filled in the following fields: dhr review: the device manufacturing quality records indicate that the released components met all requirements to perform as intended.Trend analysis: no trend considering the following event is identified: dislocation.Event description: this complaint was registered upon reception of a case summary (b)(4)received with addi168047 of split case (b)(4) regarding the male patient p.V.Which underwent the below mentioned procedures.This complaint covers the revision of the shell, the liner and the femoral head due to dislocation on (b)(6) 2018.Summary of procedure: 2005: initial left hip tep with unknown devices.(b)(6) 2015: patient fall on left hip.(b)(6) 2015: removal of left hip tep and replacement with cement spacer (girdlestone situation) due to infection.(b)(6) 2015: infection and outburst of cement spacer.(b)(6) 2015: open biopsy, debridement and lavage, no indication for infection.(b)(6) 2015: implantation of hyperion revision hip tep (warsaw products: hyperion stem, biolox delta, acetabular liner, acetabular g7 shell).(b)(6) 2015: revision of hyperion stem and head due to luxation, stem loosening and periprosthetic fracture (b)(4) warsaw, (b)(4) brigend).Implantation of another hyperion stem, acetabular liner, bioball adapter and bioball delta ceramic head and wire cerclage.(b)(6) 2018: implant fracture of hyperion stem due to trauma (twisting motion) (b)(4) berlin) noticed.(b)(6) 2018: revision of fractured hyperion stem (b)(4) berlin) to a revitan system (revitan prox, revitan dist.Curved, biolox delta head).(b)(6) 2018: revision of revitan system due to stem sintering (b)(4) winterthur).Implantation of another revitan system and a biolox head.(b)(6) 2018: closed reposition due to trauma (twisting motion) (b)(4).(b)(6) 2018: revision of acetabular shell and head due to recurring luxations (b)(4) winterthur and (b)(4) warsaw).Implantation of an avantage acetabular cup, biolox option taper, biolox delta head, trabecular metal shell and multiple bone screws.(b)(6) 2018: surgery due to infection of the lesion with microbiological and histopathological investigation (b)(4) winterthur and (b)(4) warsaw).(b)(6) 2018: follow-up check: no indication for infection, on-going antibiosis, full weight bearing.(b)(6) 2018: follow-up check: no indication for infection, on-going antibiosis, full weight bearing.Review of received data: x-ray review was performed by a health care professional: in total 18 x-rays were received for review: (b)(6) 2018: pelvis overview, left hip lauenstein-view: cup inclination angle about 48°.Compared to the previous x-rays dated (b)(6) 2018 unchanged missing bony support lateral proximal, unchanged visible split line of the medial corticalis distal.Unchanged bone loss proximal lateral.Cerclage wires and prosthesis seems undamaged.In the lauenstein-view a large radiolucent area posteromedial at the level of the proximal part of the prosthesis visible.(b)(6) 2018: pelvis overview and left hip axial, pelvis overview after reposition, left hip with femur ap: dislocation of the left hip.Compared to the previous x-rays unchanged cup inclination angle of about 48° after reposition.(b)(6) 2018: pelvis overview before femoral head dislocation, pelvis overview with head dislocation, pelvis overview after reposition.Conclusion: the present x-ray documentation of (b)(6) 2018 shows the implanted revitan stem on the left side with a cup inclination angle of about 48°.Taking into account the present file situation, no implant-related causes for the recurrent dislocation of the left hip can be identified.Radiologically correct position of the implanted revitan stem and correct cup position with an inclination angle of approx.48°.The surgical report of the revision surgery performed on (b)(6) 2015 due to luxation, stem loosening and periprosthetic fracture was received.As stated in the report the inlay was removed and a standard inlay was placed.The cup was found to have a correct seat and was left in-situ.No product identifications stated.The surgical report of the revision performed on (b)(6) 2018 due to implant fracture was received.However, this surgical report covers an earlier event, and the revitan stem implanted in this surgery was revised on (b)(6) 2018, therefore, no detailed review stated here.The per filed for the hyperion implant fracture (b)(4) found on (b)(6) 2018 and revised on (b)(6) 2018 contains the following patient information: male patient with initials p.V., born on (b)(6) 1954.Height 182 cm.Weight 100 kg.Device analysis: no product was returned to zimmer biomet for in-depth analysis.Review of product documentation: the compatibility check was performed and showed that the product combination was approved by zimmer biomet.Surgical technique: preoperative templating: accurate preoperative planning and acetabular templating help determine the size, desired location and position of the acetabular shell and are an essential part of the surgical process.Templating is best performed with an a/p pelvis radiograph with the limb internally rotated approximately 15 degrees.This allows more accurate determination of femoral offset, radiographic leg length inequality, and referencing of contralateral hip, if required.When examining the a/p radiograph, the shell should be positioned against, but not medial to, the radiographic teardrop at 40 degrees of inclination.Conclusion: based on the received x-rays this complaint can be confirmed.According to the provided data the patient was implanted with a revitan stem on (b)(6) 2018.On (b)(6) 2018 the revitan stem was revised to another revitan stem in combination with a biolox delta head due to stem sintering.Only 5 days after this revision, the left hip dislocated and a closed reduction was performed, which is documented with three x-rays dated (b)(6) 2018.Due to recurrent dislocations a revision surgery of the acetabular system and the femoral head was performed on (b)(6) 2018.According to the x-ray analysis alignment appears anatomic and overall fit appears appropriate apart from a slightly elevated inclination angle of the cup of approx.48 degrees, which could predispose to recurrent dislocations.For a g7 acetabular cup the inclination angle should be around 40° degrees.No implant-related causes for the recurrent dislocations of the left hip were identified.There, are no x-rays available dated later than (b)(6) 2018.Therefore, there are no x-rays that document the reported event.The quality records show that the specified characteristics of the biolox head (material, dimensions, surface, etc.) have met the specifications valid at the time of production.In conclusion, based on the available x-rays and the patient anamnesis, it is possible that the slightly elevated inclination angle of the cup predispose to dislocations.Nevertheless, an exact root cause could not be determined.The need for corrective measures is not indicated and zimmer gmbh considers this case as closed.Zimmer biomet¿s reference number of this file is (b)(4).
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Event or Problem Description
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Please refer to report.
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Additional Manufacturer Narrative
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This follow-up report is being submitted to relay additional information.D11 concomitant medical products: - item# 01.00406.318, lot# 2925539, revitan, distal part, curved, uncemented, 18/260.- item# 01.00402.105, lot# 2931500, revitan, proximal part, cylindrical, uncemented, 105, taper 12/14.- item# 01.0000.770, lot# 3199692, g7 10 deg arcomxl liner 32mm d.- item# 01.0000.662, lot# 3654474, g7 pps ltd acet shell 50d.A cause for this specific event cannot be ascertained from the information provided.As soon as supplemental information becomes available, an updated report will be submitted.Zimmer biomet¿s reference number of this file is (b)(4).
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Event or Problem Description
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A patient is pursuing a product liability claim due to revision surgery following repetitive luxations.
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Additional Manufacturer Narrative
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Investigation results have been updated.Please refer also to mfr 0009613350-2019-00125-1.Review of new received data: the surgical report of the revision performed on (b)(6) 2018 due to stem sintering and hip tep luxation left was received.The indication states the occurrence of hip tep luxation due to joint laxity.Intraoperative a tendency for luxation is given after insertion of a 160/18 distal revitan stem in combination with a 105 proximal revitan stem.An osteotomy is performed in order to improve the offset and the medial support.Consequently, again insertion of the revitan stem.Stable joint for an outer rotation of 75° and an abduction of 45°.Mounting of a xl-head and reposition.Product stickers stated.The surgical report of the revision performed on (b)(6) 2018 due to recurrent hip tep luxation left was received.The indication states a hip tep luxation in the bed due to anew stem sintering.A redundancy letter, dated mainz jun 19, 2018, has been received stating luxation events on (b)(6) 2018.This additional information does not change previous manufacturer's assessment of the case.Zimmer considers this case as closed again.Zimmer biomet's reference number of this file is (b)(4).
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Event or Problem Description
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No event update.
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