Total ankle replacement: is pre-operative varus deformity a predictor of poor survival rate and clinical and radiological outcomes?

Federico Giuseppe Usuelli, Claudia Angela Di Silvestri, Riccardo D'Ambrosi, Annalisa Orenti, Filippo Randelli

Research output: Contribution to journalArticle

Abstract

PURPOSE: The objective of this study was to compare survival rate and clinical and radiological outcomes of a cementless mobile-bearing total ankle replacement (TAR) between two groups of patients, affected by end-stage ankle arthritis, with or without a pre-operative varus deformity.

METHODS: A total of 81 patients (81 ankles) were included in the study and divided in two groups. Group A, "varus" group, includes 11 patients with pre-operative varus deformity of more than 10 ° and group B, "neutral" group, includes 70 patients, with a varus/valgus deformity of less than 10 °. American Orthopedic Foot and Ankle Society (AOFAS) ankle-hindfoot score, visual analogue scale (VAS), and Short Form (SF)-12 score were used to compare clinical outcomes. Radiological parameters, complications, and survival rate at last follow-up were also recorded.

RESULTS: In both groups, all clinical and radiological parameters improved after surgery (p < 0.05) without statistically significant difference. Complications were similar between two groups. Overall in three cases, an implant revision was necessary: 1 in group A (9%) at 3.1 years follow-up and 2 (3%) in group B at 3.8 years, without statistically significant difference (p > 0.001).

CONCLUSIONS: Severe varus malalignment should not be considered a contraindication for a mobile-bearing TAR. Nevertheless, TAR in severe deformity should be performed only by experienced surgeons.

Original languageEnglish
Pages (from-to)243-249
Number of pages7
JournalInternational Orthopaedics
Volume43
Issue number1
Early online dateOct 15 2018
DOIs
Publication statusPublished - Jan 2019

Fingerprint

Ankle Replacement Arthroplasty
Ankle
Survival Rate
Visual Analog Scale
Arthritis
Orthopedics
Foot

Cite this

Total ankle replacement : is pre-operative varus deformity a predictor of poor survival rate and clinical and radiological outcomes? / Usuelli, Federico Giuseppe; Di Silvestri, Claudia Angela; D'Ambrosi, Riccardo; Orenti, Annalisa; Randelli, Filippo.

In: International Orthopaedics, Vol. 43, No. 1, 01.2019, p. 243-249.

Research output: Contribution to journalArticle

Usuelli, Federico Giuseppe ; Di Silvestri, Claudia Angela ; D'Ambrosi, Riccardo ; Orenti, Annalisa ; Randelli, Filippo. / Total ankle replacement : is pre-operative varus deformity a predictor of poor survival rate and clinical and radiological outcomes?. In: International Orthopaedics. 2019 ; Vol. 43, No. 1. pp. 243-249.
@article{f889d67b4393402cae9e8e1f5d438be4,
title = "Total ankle replacement: is pre-operative varus deformity a predictor of poor survival rate and clinical and radiological outcomes?",
abstract = "PURPOSE: The objective of this study was to compare survival rate and clinical and radiological outcomes of a cementless mobile-bearing total ankle replacement (TAR) between two groups of patients, affected by end-stage ankle arthritis, with or without a pre-operative varus deformity.METHODS: A total of 81 patients (81 ankles) were included in the study and divided in two groups. Group A, {"}varus{"} group, includes 11 patients with pre-operative varus deformity of more than 10 ° and group B, {"}neutral{"} group, includes 70 patients, with a varus/valgus deformity of less than 10 °. American Orthopedic Foot and Ankle Society (AOFAS) ankle-hindfoot score, visual analogue scale (VAS), and Short Form (SF)-12 score were used to compare clinical outcomes. Radiological parameters, complications, and survival rate at last follow-up were also recorded.RESULTS: In both groups, all clinical and radiological parameters improved after surgery (p < 0.05) without statistically significant difference. Complications were similar between two groups. Overall in three cases, an implant revision was necessary: 1 in group A (9{\%}) at 3.1 years follow-up and 2 (3{\%}) in group B at 3.8 years, without statistically significant difference (p > 0.001).CONCLUSIONS: Severe varus malalignment should not be considered a contraindication for a mobile-bearing TAR. Nevertheless, TAR in severe deformity should be performed only by experienced surgeons.",
author = "Usuelli, {Federico Giuseppe} and {Di Silvestri}, {Claudia Angela} and Riccardo D'Ambrosi and Annalisa Orenti and Filippo Randelli",
year = "2019",
month = "1",
doi = "10.1007/s00264-018-4189-z",
language = "English",
volume = "43",
pages = "243--249",
journal = "International Orthopaedics",
issn = "0341-2695",
publisher = "Springer Verlag",
number = "1",

}

TY - JOUR

T1 - Total ankle replacement

T2 - is pre-operative varus deformity a predictor of poor survival rate and clinical and radiological outcomes?

AU - Usuelli, Federico Giuseppe

AU - Di Silvestri, Claudia Angela

AU - D'Ambrosi, Riccardo

AU - Orenti, Annalisa

AU - Randelli, Filippo

PY - 2019/1

Y1 - 2019/1

N2 - PURPOSE: The objective of this study was to compare survival rate and clinical and radiological outcomes of a cementless mobile-bearing total ankle replacement (TAR) between two groups of patients, affected by end-stage ankle arthritis, with or without a pre-operative varus deformity.METHODS: A total of 81 patients (81 ankles) were included in the study and divided in two groups. Group A, "varus" group, includes 11 patients with pre-operative varus deformity of more than 10 ° and group B, "neutral" group, includes 70 patients, with a varus/valgus deformity of less than 10 °. American Orthopedic Foot and Ankle Society (AOFAS) ankle-hindfoot score, visual analogue scale (VAS), and Short Form (SF)-12 score were used to compare clinical outcomes. Radiological parameters, complications, and survival rate at last follow-up were also recorded.RESULTS: In both groups, all clinical and radiological parameters improved after surgery (p < 0.05) without statistically significant difference. Complications were similar between two groups. Overall in three cases, an implant revision was necessary: 1 in group A (9%) at 3.1 years follow-up and 2 (3%) in group B at 3.8 years, without statistically significant difference (p > 0.001).CONCLUSIONS: Severe varus malalignment should not be considered a contraindication for a mobile-bearing TAR. Nevertheless, TAR in severe deformity should be performed only by experienced surgeons.

AB - PURPOSE: The objective of this study was to compare survival rate and clinical and radiological outcomes of a cementless mobile-bearing total ankle replacement (TAR) between two groups of patients, affected by end-stage ankle arthritis, with or without a pre-operative varus deformity.METHODS: A total of 81 patients (81 ankles) were included in the study and divided in two groups. Group A, "varus" group, includes 11 patients with pre-operative varus deformity of more than 10 ° and group B, "neutral" group, includes 70 patients, with a varus/valgus deformity of less than 10 °. American Orthopedic Foot and Ankle Society (AOFAS) ankle-hindfoot score, visual analogue scale (VAS), and Short Form (SF)-12 score were used to compare clinical outcomes. Radiological parameters, complications, and survival rate at last follow-up were also recorded.RESULTS: In both groups, all clinical and radiological parameters improved after surgery (p < 0.05) without statistically significant difference. Complications were similar between two groups. Overall in three cases, an implant revision was necessary: 1 in group A (9%) at 3.1 years follow-up and 2 (3%) in group B at 3.8 years, without statistically significant difference (p > 0.001).CONCLUSIONS: Severe varus malalignment should not be considered a contraindication for a mobile-bearing TAR. Nevertheless, TAR in severe deformity should be performed only by experienced surgeons.

U2 - 10.1007/s00264-018-4189-z

DO - 10.1007/s00264-018-4189-z

M3 - Article

C2 - 30324311

VL - 43

SP - 243

EP - 249

JO - International Orthopaedics

JF - International Orthopaedics

SN - 0341-2695

IS - 1

ER -