Use of the Locking Attachment Plate for Internal Fixation of Periprosthetic Femur Fractures

Introduction The locking attachment plate (LAP) can be added to a locking compression plate (LCP) to allow the fixation of locking screws bicortically around a femoral implant. We aimed to examine surgical and fracture characteristics associated with healing for periprosthetic femur fractures (PPFFx...

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Main Authors: Bryce Wall MD, Jeffrey B Stambough MD, Steven M. Cherney MD, Simon C Mears MD, PhD
Format: Article
Language:English
Published: SAGE Publishing 2022-04-01
Series:Geriatric Orthopaedic Surgery & Rehabilitation
Online Access:https://doi.org/10.1177/21514593221100417
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author Bryce Wall MD
Jeffrey B Stambough MD
Steven M. Cherney MD
Simon C Mears MD, PhD
author_facet Bryce Wall MD
Jeffrey B Stambough MD
Steven M. Cherney MD
Simon C Mears MD, PhD
author_sort Bryce Wall MD
collection DOAJ
description Introduction The locking attachment plate (LAP) can be added to a locking compression plate (LCP) to allow the fixation of locking screws bicortically around a femoral implant. We aimed to examine surgical and fracture characteristics associated with healing for periprosthetic femur fractures (PPFFx) treated with constructs employing LAP fixation. We hypothesize that the addition of an LAP provides stable peri-implant fixation. Materials &Methods We retrospectively reviewed a consecutive series of 28 PPFFx surgically treated with LCP-LAP constructs by 4 surgeons from 2015-2020. Fractures were classified and grouped using the Vancouver Classification System and included 12 B1, 2 B2, 11 C fractures, and 3 fractures around other stemmed implants. Primary outcome measures included hardware failure such as screw pullout, broken screws, and plate fracture. Clinical complications including infection, non-union, malunion, and reoperation were recorded. Results No LAP failures, screw pullout, or broken screws were observed. Two fractured plates (7.1%) occurred in patients with Vancouver C fracture types. Overall complication rate was 17.9% and included 3 non-unions, 1 deep infection, and 1 implant loosening with painful hardware, each requiring reoperation. Differences were observed between unions and nonunions for total number of screws (12.4 vs 14.7, P = .005) and number of locking screws used (8.04 vs 11.3, P = .03). Conclusion The LAP provides adequate fixation and low failure rates where fixation is required around a well-fixed stem. When failures occur, it is from plate breakage and not due to failure of fixation at the area of plate-stem overlap.
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spelling doaj.art-d2e9ad9cc42d476cac1c82def395dfed2022-12-22T00:43:13ZengSAGE PublishingGeriatric Orthopaedic Surgery & Rehabilitation2151-45932022-04-011310.1177/21514593221100417Use of the Locking Attachment Plate for Internal Fixation of Periprosthetic Femur FracturesBryce Wall MDJeffrey B Stambough MDSteven M. Cherney MDSimon C Mears MD, PhDIntroduction The locking attachment plate (LAP) can be added to a locking compression plate (LCP) to allow the fixation of locking screws bicortically around a femoral implant. We aimed to examine surgical and fracture characteristics associated with healing for periprosthetic femur fractures (PPFFx) treated with constructs employing LAP fixation. We hypothesize that the addition of an LAP provides stable peri-implant fixation. Materials &Methods We retrospectively reviewed a consecutive series of 28 PPFFx surgically treated with LCP-LAP constructs by 4 surgeons from 2015-2020. Fractures were classified and grouped using the Vancouver Classification System and included 12 B1, 2 B2, 11 C fractures, and 3 fractures around other stemmed implants. Primary outcome measures included hardware failure such as screw pullout, broken screws, and plate fracture. Clinical complications including infection, non-union, malunion, and reoperation were recorded. Results No LAP failures, screw pullout, or broken screws were observed. Two fractured plates (7.1%) occurred in patients with Vancouver C fracture types. Overall complication rate was 17.9% and included 3 non-unions, 1 deep infection, and 1 implant loosening with painful hardware, each requiring reoperation. Differences were observed between unions and nonunions for total number of screws (12.4 vs 14.7, P = .005) and number of locking screws used (8.04 vs 11.3, P = .03). Conclusion The LAP provides adequate fixation and low failure rates where fixation is required around a well-fixed stem. When failures occur, it is from plate breakage and not due to failure of fixation at the area of plate-stem overlap.https://doi.org/10.1177/21514593221100417
spellingShingle Bryce Wall MD
Jeffrey B Stambough MD
Steven M. Cherney MD
Simon C Mears MD, PhD
Use of the Locking Attachment Plate for Internal Fixation of Periprosthetic Femur Fractures
Geriatric Orthopaedic Surgery & Rehabilitation
title Use of the Locking Attachment Plate for Internal Fixation of Periprosthetic Femur Fractures
title_full Use of the Locking Attachment Plate for Internal Fixation of Periprosthetic Femur Fractures
title_fullStr Use of the Locking Attachment Plate for Internal Fixation of Periprosthetic Femur Fractures
title_full_unstemmed Use of the Locking Attachment Plate for Internal Fixation of Periprosthetic Femur Fractures
title_short Use of the Locking Attachment Plate for Internal Fixation of Periprosthetic Femur Fractures
title_sort use of the locking attachment plate for internal fixation of periprosthetic femur fractures
url https://doi.org/10.1177/21514593221100417
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