Cold Welding of the Synthes Femoral Neck System Encountered at Conversion to Arthroplasty: A Case Report

Danielle F. Peterson; Kathryn Schabel

doi:10.2106/JBJS.CC.22.00530

Cold Welding of the Synthes Femoral Neck System Encountered at Conversion to Arthroplasty: A Case Report

Danielle F. Peterson, Kathryn Schabel

Orthopaedics and Rehabilitation

Research output: Contribution to journal › Article › peer-review

Abstract

Case:The Synthes Femoral Neck System (FNS) is a relatively new device available to the market in 2019 designed to reduce complication and revision rates after femoral neck fracture stabilization. We present a 77-year-old man with Parkinson disease and avascular necrosis after femoral neck fracture initially managed with the FNS. Subsequent challenges in device removal occurred because of its propensity for bony integration, plate and locking screw welding, and screw head recess destruction.Conclusion:Surgeons must recognize the need for additional available equipment (e.g., burr or broken screw removal set) for successful extraction when FNS removal is required.

Original language	English (US)
Article number	e22.00530
Journal	JBJS case connector
Volume	13
Issue number	3
DOIs	https://doi.org/10.2106/JBJS.CC.22.00530
State	Published - Jul 12 2023

Keywords

FNS
Synthes Femoral Neck System
avascular necrosis
conversion to THA
elderly
femoral neck fracture
titanium
welding

ASJC Scopus subject areas

Surgery
Orthopedics and Sports Medicine

Access to Document

10.2106/JBJS.CC.22.00530

Cite this

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title = "Cold Welding of the Synthes Femoral Neck System Encountered at Conversion to Arthroplasty: A Case Report",

abstract = "Case:The Synthes Femoral Neck System (FNS) is a relatively new device available to the market in 2019 designed to reduce complication and revision rates after femoral neck fracture stabilization. We present a 77-year-old man with Parkinson disease and avascular necrosis after femoral neck fracture initially managed with the FNS. Subsequent challenges in device removal occurred because of its propensity for bony integration, plate and locking screw welding, and screw head recess destruction.Conclusion:Surgeons must recognize the need for additional available equipment (e.g., burr or broken screw removal set) for successful extraction when FNS removal is required.",

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AU - Schabel, Kathryn

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Y1 - 2023/7/12

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AB - Case:The Synthes Femoral Neck System (FNS) is a relatively new device available to the market in 2019 designed to reduce complication and revision rates after femoral neck fracture stabilization. We present a 77-year-old man with Parkinson disease and avascular necrosis after femoral neck fracture initially managed with the FNS. Subsequent challenges in device removal occurred because of its propensity for bony integration, plate and locking screw welding, and screw head recess destruction.Conclusion:Surgeons must recognize the need for additional available equipment (e.g., burr or broken screw removal set) for successful extraction when FNS removal is required.

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KW - Synthes Femoral Neck System

KW - avascular necrosis

KW - conversion to THA

KW - elderly

KW - femoral neck fracture

KW - titanium

KW - welding

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Cold Welding of the Synthes Femoral Neck System Encountered at Conversion to Arthroplasty: A Case Report

Abstract

Keywords

ASJC Scopus subject areas

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