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U.S. Department of Health and Human Services

MAUDE Adverse Event Report: SYNTHES GMBH UNK - SCREWS: LAG ROD, FIXATION, INTRAMEDULLARY

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SYNTHES GMBH UNK - SCREWS: LAG ROD, FIXATION, INTRAMEDULLARY Back to Search Results
Device Problem Migration (4003)
Patient Problems Failure of Implant (1924); Unspecified Tissue Injury (4559)
Event Type  Injury  
Manufacturer Narrative
Additional narrative: this report is for an unknown pfna lag screw/unknown lot. Part and lot number are unknown. Without the specific part number; the udi number and 510-k number is unknown. Complainant part is not expected to be returned for manufacturer review/investigation. Without a lot number the device history records review could not be completed. Product was not returned. Based on the information available, it has been determined that no corrective and/or preventative action is proposed. This complaint will be accounted for and monitored via post market surveillance activities. If additional information is made available, the investigation will be updated as applicable. Device was used for treatment, not diagnosis. If information is obtained that was not available for the initial medwatch, a follow-up medwatch will be filed as appropriate.
 
Event Description
This report is being filed after the review of the following journal article: yoo, j. , chang, j. , park,c. , hwang, j. (2020), risk factors associated with failure of cephalomedullary nail fixation in the treatment of trochanteric hip fractures, clinics in orthopedic surgery, vol. 12, pages 29-36 (south korea). The aim of this study is to present fixation failures after im nailing in elderly patients with trochanteric fractures and compared the failure group with nonfailure group to identify risk factors of fixation failure. Between january 20212 and august 2016, a total of 194 patients with trochanteric fractures underwent im nailing. There were 42 males and 141 females with a mean age of 76 years in the nonfailure group while there were 11 females on the failure group with a mean age of 76. 3 years. Implants used were a nail with a thread-type lag screw was used in 140 patients (itst, trochanteric/subtrochanteric fixation system, zimmer, warsaw, in, usa or gamma 3 nail, stryker, schonkirchen, germany), whereas the helical blade-type nail was used in 54 patients (proximal femoral nail anti-rotation; ao synthes, davos, switzerland). The article did not specify which of the devices were being used to capture the following complications: 202 patients were excluded due to death during follow-up, bedridden status before injury, and loss to follow-up. An (b)(6) female patient fell on the ground. The proximal fragment was short and varus angulated before surgery. The fracture was reduced by the proximal femoral nail anti-rotation. The lag screw was cutting through at 3 months after surgery. Conversion to hemiarthroplasty with wiring was performed. 1 female patient had cut-through of the helical blade. 1 female patient had a nail breakage. On fracture reduction, one of the 11 patients showed discontinuity of the medial cortex, but eight patients showed discontinuity of the anterior cortex, thus not achieving anatomical reduction. Cut-out of the thread-type lag screw occurred in 8 patients (not synthes) this report is for an unknown synthes pfna lag screw. It captures a (b)(6) female patient who had lag screw cut out. This is report 1 of 6 for (b)(4).
 
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Brand NameUNK - SCREWS: LAG
Type of DeviceROD, FIXATION, INTRAMEDULLARY
Manufacturer (Section D)
SYNTHES GMBH
eimattstrasse 3
oberdorf 4436
SZ 4436
Manufacturer Contact
kara ditty-bovard
1302 wrights lane east
west chester, PA 19380
6103142063
MDR Report Key11488171
MDR Text Key250366518
Report Number8030965-2021-01971
Device Sequence Number1
Product Code HSB
Combination Product (y/n)N
Reporter Country CodeKS
Number of Events Reported1
Summary Report (Y/N)N
Report Source Manufacturer
Source Type company representative,foreig
Reporter Occupation
Type of Report Initial
Report Date 02/15/2021
1 Device was Involved in the Event
1 Patient was Involved in the Event
Date FDA Received03/15/2021
Is this an Adverse Event Report? Yes
Is this a Product Problem Report? Yes
Device Operator
Was Device Available for Evaluation? No
Is the Reporter a Health Professional? Yes
Was the Report Sent to FDA?
Event Location No Information
Date Manufacturer Received02/15/2021
Was Device Evaluated by Manufacturer? Device Not Returned to Manufacturer
Is the Device Single Use? Yes
Is This a Reprocessed and Reused Single-Use Device?
Type of Device Usage Unkown

Patient Treatment Data
Date Received: 03/15/2021 Patient Sequence Number: 1
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