A Crossed Screw Patellar Reconstruction Technique for the Treatment of the Severely Deficient Scaphoid Shaped Patella in Total Knee Arthroplasty

One of the contraindications to patella resurfacing in total knee arthroplasty is a thin and severely eroded ‘deficient’ patella. However, such patients often present with severe patellofemoral joint arthritis, patellar lateral subluxation, and patella maltracking, which can only be treated effectiv...

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Main Authors: Glenys Poon, MBBS, MRCSEd, Wei Ming Siow, BSc, MBBS, M Med, FRCSEd (Orthopaedic), FAMS, Kein Boon Poon, MD, MSc Orthopaedic, FAMS, MD, MSc Orthopaedic, FAMS
Format: Article
Language:English
Published: Elsevier 2023-12-01
Series:Arthroplasty Today
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2352344123001644
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author Glenys Poon, MBBS, MRCSEd
Wei Ming Siow, BSc, MBBS, M Med, FRCSEd (Orthopaedic), FAMS
Kein Boon Poon, MD, MSc Orthopaedic, FAMS, MD, MSc Orthopaedic, FAMS
author_facet Glenys Poon, MBBS, MRCSEd
Wei Ming Siow, BSc, MBBS, M Med, FRCSEd (Orthopaedic), FAMS
Kein Boon Poon, MD, MSc Orthopaedic, FAMS, MD, MSc Orthopaedic, FAMS
author_sort Glenys Poon, MBBS, MRCSEd
collection DOAJ
description One of the contraindications to patella resurfacing in total knee arthroplasty is a thin and severely eroded ‘deficient’ patella. However, such patients often present with severe patellofemoral joint arthritis, patellar lateral subluxation, and patella maltracking, which can only be treated effectively with resurfacing. While various treatments have been proposed, options remain limited.Here we introduce a method of patella reconstruction using four 2.7-mm titanium cortical screws crossing each other into the inner shell of the patella. This provides a scaffold onto which bone cement and any standard polyethylene patellar component can be fixed. Postoperatively, the patient had no anterior knee pain, no patella maltracking, and no component loosening.Advantages of this technique include minimization of extensor disruption, low costs, easy accessibility, reproducibility, and improved mechanical strength.
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spelling doaj.art-e4fe8801e95e49699cd1e87d1f7d075b2023-12-24T04:45:47ZengElsevierArthroplasty Today2352-34412023-12-0124101259A Crossed Screw Patellar Reconstruction Technique for the Treatment of the Severely Deficient Scaphoid Shaped Patella in Total Knee ArthroplastyGlenys Poon, MBBS, MRCSEd0Wei Ming Siow, BSc, MBBS, M Med, FRCSEd (Orthopaedic), FAMS1Kein Boon Poon, MD, MSc Orthopaedic, FAMS, MD, MSc Orthopaedic, FAMS2Department of Orthopaedic Surgery, National University Hospital, Singapore, Singapore; Corresponding author. Department of Orthopaedic Surgery, National University Hospital, 1E Kent Ridge Road, Singapore 119228. Tel.: +65 97565039.Department of Orthopaedic Surgery, Sengkang General Hospital, Singapore, SingaporeDepartment of Orthopaedic Surgery, Sengkang General Hospital, Singapore, SingaporeOne of the contraindications to patella resurfacing in total knee arthroplasty is a thin and severely eroded ‘deficient’ patella. However, such patients often present with severe patellofemoral joint arthritis, patellar lateral subluxation, and patella maltracking, which can only be treated effectively with resurfacing. While various treatments have been proposed, options remain limited.Here we introduce a method of patella reconstruction using four 2.7-mm titanium cortical screws crossing each other into the inner shell of the patella. This provides a scaffold onto which bone cement and any standard polyethylene patellar component can be fixed. Postoperatively, the patient had no anterior knee pain, no patella maltracking, and no component loosening.Advantages of this technique include minimization of extensor disruption, low costs, easy accessibility, reproducibility, and improved mechanical strength.http://www.sciencedirect.com/science/article/pii/S2352344123001644Total knee arthroplastyPatella defectPatella resurfacingReconstructionCement augmentation
spellingShingle Glenys Poon, MBBS, MRCSEd
Wei Ming Siow, BSc, MBBS, M Med, FRCSEd (Orthopaedic), FAMS
Kein Boon Poon, MD, MSc Orthopaedic, FAMS, MD, MSc Orthopaedic, FAMS
A Crossed Screw Patellar Reconstruction Technique for the Treatment of the Severely Deficient Scaphoid Shaped Patella in Total Knee Arthroplasty
Arthroplasty Today
Total knee arthroplasty
Patella defect
Patella resurfacing
Reconstruction
Cement augmentation
title A Crossed Screw Patellar Reconstruction Technique for the Treatment of the Severely Deficient Scaphoid Shaped Patella in Total Knee Arthroplasty
title_full A Crossed Screw Patellar Reconstruction Technique for the Treatment of the Severely Deficient Scaphoid Shaped Patella in Total Knee Arthroplasty
title_fullStr A Crossed Screw Patellar Reconstruction Technique for the Treatment of the Severely Deficient Scaphoid Shaped Patella in Total Knee Arthroplasty
title_full_unstemmed A Crossed Screw Patellar Reconstruction Technique for the Treatment of the Severely Deficient Scaphoid Shaped Patella in Total Knee Arthroplasty
title_short A Crossed Screw Patellar Reconstruction Technique for the Treatment of the Severely Deficient Scaphoid Shaped Patella in Total Knee Arthroplasty
title_sort crossed screw patellar reconstruction technique for the treatment of the severely deficient scaphoid shaped patella in total knee arthroplasty
topic Total knee arthroplasty
Patella defect
Patella resurfacing
Reconstruction
Cement augmentation
url http://www.sciencedirect.com/science/article/pii/S2352344123001644
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