MAUDE Adverse Event Report: DEPUY ORTHOPAEDICS INC US LPS POROUS STEM 15.5X125MM STR; LPS AND S-ROM : KNEE STEMS

Catalog Number 198726414

Device Problem Device-Device Incompatibility (2919)

Patient Problem Insufficient Information (4580)

Event Date 03/15/2024

Event Type  malfunction  

Event Description

It was reported that while performing a revision knee fusion on this patient.Surgeon removed the old cemented component and decided to implant a press fit component.After removing all traces of the previously implanted cement, the surgeon reamed the femoral canal first with flexible im reamers to the desired size, 15mm.Then the surgeon reamed with sequential aml straight reamers.Because the patient had less than desired bone density, the surgeon choosed to ream line to line of the implant size chosen.Surgeon reamed to a 15.5 and choose to implant a 15.5x125mm stem.Lps 15.5 porous stem was loose.Here is the problem, surgeon was able to stick the component in and pull it out easily with fingers.This being unacceptable and confusing to say the least, surgeon had to choose the next size larger stem and insert this stem.This stem, 16.5mm, was implanted properly with the use of and impaction handle and mallet.Because this component fit properly surgeon was able to proceed and lock the tibial and femoral component together with new intracalry section and segmental components.The patient was closed in the usual fashion.Because of the confusion as to why this stem did not fit, at the end of the procedure.Sales rep used a caliper and measured the largest flexible reamer head used, 15mm, the largest straight aml reamer used 15.5mm.Sales rep then measured the wasted stem 15.5.The wasted stem was sent to my office if it was the desire to have this component returned.This wasted implant was not billed to the patient or hospital per the surgeons request.Doe: (b)(6) 2024 affected side: right knee.

Manufacturer Narrative

Product complaint # (b)(4).This report is being submitted pursuant to the provisions of 21 cfr, part 803 (and/or part 4, as applicable).This report may be based on information which has not been investigated or verified prior to the required reporting date.This report does not reflect a conclusion by depuy synthes, or its employees that the report constitutes an admission that the product, depuy synthes, or its employees caused or contributed to the potential event described in this report.If information is obtained that was not available for the initial report, a follow-up report will be filed as appropriate.

Manufacturer Narrative

Product complaint # (b)(4).This report is being submitted pursuant to the provisions of 21 cfr, part 803.This report may be based on information which has not been investigated or verified prior to the required reporting date.This report does not reflect a conclusion by depuy synthes joint reconstruction, or its employees that the report constitutes an admission that the product, depuy synthes joint reconstruction, or its employees caused or contributed to the potential event described in this report.If information is obtained that was not available for the initial report, a follow-up report will be filed as appropriate.

Manufacturer Narrative

Product complaint (b)(4).Investigation summary according to the information received, ¿it was reported that while performing a revision knee fusion on this patient.Surgeon removed the old cemented component and decided to implant a press fit component.After removing all traces of the previously implanted cement, the surgeon reamed the femoral canal first with flexible im reamers to the desired size, 15mm.Then the surgeon reamed with sequential aml straight reamers.Because the patient had less than desired bone density, the surgeon choosed to ream line to line of the implant size chosen.Surgeon reamed to a 15.5 and choose to implant a 15.5x125mm stem.Lps 15.5 porous stem was loose.Here is the problem, surgeon was able to stick the component in and pull it out easily with fingers.This being unacceptable and confusing to say the least, surgeon had to choose the next size larger stem and insert this stem.This stem, 16.5mm, was implanted properly with the use of and impaction handle and mallet.Because this component fit properly surgeon was able to proceed and lock the tibial and femoral component together with new intracalry section and segmental components.The patient was closed in the usual fashion.Because of the confusion as to why this stem did not fit, at the end of the procedure.Sales rep used a caliper and measured the largest flexible reamer head used, 15mm, the largest straight aml reamer used 15.5mm.Sales rep then measured the wasted stem 15.5.The wasted stem was sent to my office if it was the desire to have this component returned.This wasted implant was not billed to the patient or hospital per the surgeons request¿ the product was returned to depuy synthes for evaluation.The depuy synthes team conducted a visual inspection of the returned device.Visual analysis of the returned sample revealed that lps porous stem 15.5x125mm str presents nothing indicative of a device nonconformance.No signs or damage nor cosmetic defects that could contribute to the reported event were observed.A dimensional inspection was performed for the returned stem and met specifications.A functional testing was not performed as it is not applicable to the complaint condition.A manufacturing record evaluation was performed for the finished device [198726414 / h07312] number, and no non-conformances / manufacturing irregularities were identified during manufacturing.The overall complaint was confirmed as the observed condition of the lps porous stem 15.5x125mm str would not contribute to the complained device issue.Based on the investigation findings, it has been determined that no corrective and/or preventative action is proposed.There is no indication that a design or manufacturing issue has caused the reported complaint condition.As part of depuy synthes quality process, all devices are manufactured, inspected, and released to approved specifications.Additional monitoring for any potential safety signals will be conducted through complaint trending and other post-market safety surveillance activities (b)(4).Dimensional inspection: specified dimensions: length of the shaft = 4.92in +/- 0.30in shaft ø (over pourous coating)= 0.611in +.010in / -.015in proximal section ø (over pourous coating)= 1.235in +.010in / -.015in measured dimensions: length of the shaft = 4.9275in (complies) shaft ø (over pourous coating) =.06095in (complies) proximal section ø (over pourous coating)= 1.2300in (complies) device used : digimatic caliper cd78621 digimatic caliper cd78627 device history lot
=
> a manufacturing record evaluation was performed for the finished device [198726414 / h07312] number, and no non-conformances / manufacturing irregularities were identified during manufacturing.H10 additional narrative: corrected: h3.

• Brand Name: LPS POROUS STEM 15.5X125MM STR
• Type of Device: LPS AND S-ROM : KNEE STEMS
• Manufacturer (Section D): DEPUY ORTHOPAEDICS INC US; 700 orthopaedic drive; warsaw IN 46581 0988
• Manufacturer (Section G): DEPUY ORTHOPAEDICS, INC. 1818910; 700 orthopaedic dr.; warsaw IN 46581 0988
• Manufacturer Contact: kate karberg ; 700 orthopaedic dr.; warsaw, IN 46581 ; 3035526892
• MDR Report Key: 18991053
• MDR Text Key: 338790679
• Report Number: 1818910-2024-06999
• Device Sequence Number: 1
• Product Code: JWH
• UDI-Device Identifier: 10603295079293
• UDI-Public: 10603295079293
• Combination Product (y/n): N
• Reporter Country Code: US
• PMA/PMN Number: K033959
• Number of Events Reported: 1
• Summary Report (Y/N): N
• Report Source: Manufacturer
• Source Type: Health Professional,Company Representative
• Reporter Occupation: Other Health Care Professional
• Type of Report: Initial,Followup,Followup
• Report Date: 03/28/2024

1 Device was Involved in the Event

1 Patient was Involved in the Event

• Is this an Adverse Event Report?: No
• Is this a Product Problem Report?: Yes
• Device Operator: Health Professional
• Device Catalogue Number: 198726414
• Device Lot Number: H07312
• Was Device Available for Evaluation?: Device Returned to Manufacturer
• Is the Reporter a Health Professional?: Yes
• Initial Date Manufacturer Received: 03/20/2024
• Initial Date FDA Received: 03/28/2024
• Supplement Dates Manufacturer Received: 04/26/2024; 05/15/2024
• Supplement Dates FDA Received: 04/28/2024; 05/16/2024
• Was Device Evaluated by Manufacturer?: Yes
• Date Device Manufactured: 11/09/2016
• Is the Device Single Use?: Yes
• Is This a Reprocessed and Reused Single-Use Device?: No
• Type of Device Usage: Initial
• Patient Sequence Number: 1
• Patient Age: 66 YR
• Patient Sex: Female