Unicompartmental knee arthroplasty

Bordini, Barbara; Stea, Susanna; Falcioni, Stefano; Ancarani, Cristina; Toni, Aldo

doi:10.1016/j.knee.2014.02.012

Cited by 21 publications

(5 citation statements)

References 7 publications

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“…ORTHOTEP University HS Carl Gustav Carus [ 109 , 619 ] 2. Dresden Hip Surgery Registry [ 52 , 196 ] Heidelberg University of Heidelberg [ 410 ] Regensburg Regensburg University [ 198 , 255 , 292 , 296 , 299 ] Greece Athens General HS KAT [ 155 , 384 , 646 ] Thessaloniki Arthroplasty RG Thessaloniki (ART) [ 2 , 12 , 406 , 455 , 647 ] Italy Emilia-Romanga Register of Orthopaedic Prosthetic Implant (RIPO) [ 24 , 26 , 39 , 43 , 57 , 145 , 164 , 189 , 231 , 288 , 297 , 468 , 476 , 482 , 491 , 502 , 506 , 508 , 527 , 540 , 562 , 563 , 569 , 585 , 592 , 597 , …”

Section: Resultsmentioning

confidence: 99%

“…The “Register of Orthopaedic Prosthetic Implant (RIPO) of Emilia-Romagna region” published 30 papers from 2002 to 2022 [ 24 , 645 ]. Among them, twenty-eight were cohort studies [ 24 , 26 , 39 , 43 , 57 , 145 , 164 , 189 , 231 , 288 , 297 , 482 , 491 , 502 , 506 , 508 , 527 , 540 , 562 , 563 , 569 , 585 , 592 , 597 , 599 , 624 , 630 , 645 ], one was RCT [ 476 ] and one registry protocol [ 468 ]. Of these 30 studies, 16 were survival [ 26 , 164 , 189 , 231 , 288 , 482 , 491 , 502 , 508 , 527 , 540 , 563 , 569 , 585 , 592 , 599 ], six analysed implant types [ 24 , 43 , 297 , 506 , 624 , 645 ], and two studied postoperative complications [ 597 , 630 ].…”

Section: Resultsmentioning

confidence: 99%

“…Of these 30 studies, 16 were survival [ 26 , 164 , 189 , 231 , 288 , 482 , 491 , 502 , 508 , 527 , 540 , 563 , 569 , 585 , 592 , 599 ], six analysed implant types [ 24 , 43 , 297 , 506 , 624 , 645 ], and two studied postoperative complications [ 597 , 630 ]. Long-term postoperative outcomes [ 562 ], cost [ 57 ] and risk factors analysis [ 39 ], genetic studies [ 476 ], a protocol for registry study [ 468 ] and comparison of different surgical techniques [ 145 ] were among the primary outcomes of other study types.…”

Section: Resultsmentioning

confidence: 99%

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Global mapping of institutional and hospital-based (Level II–IV) arthroplasty registries: a scoping review

Zgouridou,

Kenanidis,

Potoupnis

et al. 2023

Eur J Orthop Surg Traumatol

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Purpose Four joint arthroplasty registries (JARs) levels exist based on the recorded data type. Level I JARs are national registries that record primary data. Hospital or institutional JARs (Level II–IV) document further data (patient-reported outcomes, demographic, radiographic). A worldwide list of Level II–IV JARs must be created to effectively assess and categorize these data. Methods Our study is a systematic scoping review that followed the PRISMA guidelines and included 648 studies. Based on their publications, the study aimed to map the existing Level II–IV JARs worldwide. The secondary aim was to record their lifetime, publications’ number and frequency and recognise differences with national JARs. Results One hundred five Level II–IV JARs were identified. Forty-eight hospital-based, 45 institutional, and 12 regional JARs. Fifty JARs were found in America, 39 in Europe, nine in Asia, six in Oceania and one in Africa. They have published 485 cohorts, 91 case-series, 49 case–control, nine cross-sectional studies, eight registry protocols and six randomized trials. Most cohort studies were retrospective. Twenty-three per cent of papers studied patient-reported outcomes, 21.45% surgical complications, 13.73% postoperative clinical and 5.25% radiographic outcomes, and 11.88% were survival analyses. Forty-four JARs have published only one paper. Level I JARs primarily publish implant revision risk annual reports, while Level IV JARs collect comprehensive data to conduct retrospective cohort studies. Conclusions This is the first study mapping all Level II–IV JARs worldwide. Most JARs are found in Europe and America, reporting on retrospective cohorts, but only a few report on studies systematically.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

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Global mapping of institutional and hospital-based (Level II–IV) arthroplasty registries: a scoping review

Zgouridou,

Kenanidis,

Potoupnis

et al. 2023

Eur J Orthop Surg Traumatol

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“…About 50% of the failures after UKA occur within the first 5 years of surgery [24,25]. These are attributed to surgical-technique-dependent failures which include aseptic loosening, polyethylene liner dislocation, and disease progression to another compartment [26][27][28][29][30]. While performing UKA surgery, the malpositioning of components and the inability to replicate the target-limb alignment as per preoperative planning have been shown to correlate with worse prosthesis survival and clinical outcomes [31][32][33][34][35].…”

Section: Introductionmentioning

confidence: 99%

Evidence-based surgical technique for medial unicompartmental knee arthroplasty

Kim¹,

Mittal²,

Meshram³

et al. 2021

Knee Surg & Relat Res

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Unicompartmental knee arthroplasty (UKA) is a successful treatment modality in selected patients having advanced, single-compartment osteoarthritis of the knee. The bone and ligament preservation leading to shorter recovery periods, better functional outcomes, lower perioperative complication rates, and easier revision, if needed, are proposed as some of the advantages of UKA over total knee arthroplasty (TKA). Despite several advantages, UKA is reported to have higher failure rates as compared to TKA. The prosthesis failure of UKA is directly correlated to intraoperative technique-related factors like malpositioning of components and the inability to replicate the target-limb alignment as per preoperative planning. An evidence-based surgical technique for UKA may help surgeons to avoid the intraoperative technique-related errors. The purpose of this paper is to describe a stepwise surgical technique for the fixed-bearing medial UKA.

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confidence: 99%

Remodeling pattern of the medial tibial metaphysis after a cementless unicondylar knee replacement; a radiological study

veizi¹

2022

South Clin Ist Euras

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INTRODUCTIONUnicondylar knee arthroplasty (UKA) is a surgical procedure whose popularity has grown these last years after good-to-excellent long-term results have been constantly reported. [1][2][3][4] It is favored to total knee arthroplasty because of its lesser invasive nature, quick recovery, and more anatomic post-operative kinematic results. [5][6][7] Despite lateral compartment applications having gained popularity recently, UKA is still primarily performed on the medial side. [3] Furthermore, many studies have previously analyzed the radiological changes taking place on the adjacent bone structures after the procedure. [8][9][10] Increased bone strain is observed on the medial tibial metaphysis after a unicondylar arthroplasty. [8][9][10][11][12] The medial tibial metaphysis has been shown to get overloaded due to the loss of subchondral bone and remodeling is expected to follow to accommodate the new metallic structures. [9,10] However many of these studies, were either finite-element analyses or cadaveric studies, and radiological studies in real patients are still lacking.The purpose of this study is to radiologically investigate the effects of the remodeling process in the medial tibial metaphysis after a unicondylar replacement, by measuring the cortical thickness of the proximal tibial metaphysis and establishing a new ratio parameter.Although not yet radiographically proven, it has frequently been stipulated that overloading of the new subchondral bone should lead to some degree of remodeling which itself may present as change in the cortical thickness or the increase in sclerosis Objective: Unicondylar knee arthroplasty (UKA) is a surgical procedure primarily used for the resurfacing of the medial compartment and many studies have previously analyzed the changes taking place on the surrounding osseous tissues after the procedure. The purpose of this study is to investigate the effects of bone strain in the medial tibial metaphysis after a cementless unicondylar replacement.Methods: Patients treated with a cementless UKA between March 2015 and March 2019 was selected for this study. Inclusion criteria were a minimum of 1 and a maximum of 2 years follow-up and presence of standard radiographs of the operated knee at yearly intervals. A total of 109 patients were included in the study. Two lines at a distance of 5 and 7 cm from the lateral tibial eminence were horizontally drawn and the medial cortical thickness and the total cortical distance were measured. A cortex-to-metaphysis (CTM) ratio was established. The increase of density in the metaphysis was analyzed though the "reactive triangle" phenomenon. We initially hypothesized that some degree of increase in sclerosis would be detected in the medial tibial metaphysis and that the increase would be greater in patients with an implant underhanging, since more cancellous bone would come under strain. Results:The CTM ratio showed a decreasing pattern during the 1 st post-operative year for all measured levels. An increase in density at the metaphysea...

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Unicompartmental knee arthroplasty

Cited by 21 publications

References 7 publications

Global mapping of institutional and hospital-based (Level II–IV) arthroplasty registries: a scoping review

Global mapping of institutional and hospital-based (Level II–IV) arthroplasty registries: a scoping review

Evidence-based surgical technique for medial unicompartmental knee arthroplasty

Remodeling pattern of the medial tibial metaphysis after a cementless unicondylar knee replacement; a radiological study

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