Short-term Results of Total Ankle Arthroplasty for End-stage Ankle Arthritis With Severe Varus Deformity

Sung, Ki-Sun; Ahn, Jungtae; Lee, Keun-Ho; Chun, Tae-Hwan

doi:10.1177/1071100713517102

Cited by 55 publications

(20 citation statements)

References 35 publications

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“…This possibly results in misalignment of the talus with respect to the anatomical axis of the tibia. Therefore, several surgeons have recommended resection of the lateral margin of the trochlea prior to placement of the cutting guide, to take the medial surface resorption into account 23,24 . The present results would help determine how the resection of the lateral margin of the trochlea should be made prior to placement of the cutting guide, possibly resulting in better clinical outcomes of total foot arthroplasty.…”

Section: Discussionmentioning

confidence: 99%

Visualization and quantification of the degenerative pattern of the talus in unilateral varus ankle osteoarthritis

Ogihara

Kokubo

Suda

et al. 2019

Sci Rep

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The aim of this study was to quantify and visualize the degenerative patterns of the talus in ankle osteoarthritis (OA). The differences in talar morphology between sides of patients with unilateral varus ankle OA (medial talar tilt > 4°) were compared. Computed tomography images of both feet of 35 patients (OA: 22 patients, control: 13 patients) were analyzed. Each surface model of the right and left tali was registered to the opposite talus via a mirror-image technique and an iterative closest point algorithm. The surface deviation between the two models was quantified and visualized by deviation color maps. The results quantitatively demonstrated that osteophytes are generated in the area under the antero-medial margin of the trochlea in OA tali. In severe OA tali, bone resorption of more than 2 mm in the medial portion of the trochlea, as well as a similar degree of osteophyte formation on the lateral surface, was also seen. Stereotypical patterns of degeneration occurring in OA tali were successfully visualized and quantified by left-right comparison of patients with unilateral ankle OA. Such information would contribute to better understanding of the development of ankle OA and preoperative planning of total ankle arthroplasty and arthrodesis.

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Section: Discussionmentioning

confidence: 99%

Visualization and quantification of the degenerative pattern of the talus in unilateral varus ankle osteoarthritis

Ogihara

Kokubo

Suda

et al. 2019

Sci Rep

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“…14 Two studies did not report the diagnoses, 27,38 and 1 study reported the diagnoses in number of patients instead of TARs. 32 The weighted mean BMI in the studies was 26.9 (range, 22-39) kg/m 2 and was reported in only 7 studies. The weighted mean follow-up using all included studies was 52.4 (range, 1-147) months: in the neutral alignment group, which was reported in 13 studies, weighted mean follow-up was 55.7 (range, 1-147) months.…”

Section: Resultsmentioning

confidence: 93%

“…The items “outcome of interest” and “comparability of cohorts” corresponded with the highest risk of bias across studies. Seven studies scored no stars for the item “outcome of interest,” 14,15,31,32,34,37,38 6 studies scored no stars for the item “comparability of cohorts,” 4,14,20,31,37,38 and 3 studies scored 1 of 2 stars for this item. 13,15,34 For the other items of the checklist, where a maximum of 1 star could be obtained, 2 studies did not obtain a star.…”

Section: Resultsmentioning

confidence: 99%

Influence of Preoperative Tibiotalar Alignment in the Coronal Plane on the Survival of Total Ankle Replacement: A Systematic Review

Keijzer

Joling²,

Sierevelt³

et al. 2019

Foot Ankle Int.

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Background: It remains controversial whether significant preoperative tibiotalar varus and valgus deformity should be contraindications for total ankle replacement (TAR). The primary aim of this systematic review was to analyze the influence of preoperative tibiotalar varus and valgus alignment on the survival of TAR. Methods: The databases MEDLINE and Embase were searched from onset through September 2018. Two authors performed study selection and data extraction using a predefined data extraction tool. Implant survival in the alignment groups was reported as “revisions per 100 component years.” Additional procedures, complications, and revisions were also reported. Assessment of the methodological quality was performed using the Newcastle-Ottawa Scale (NOS). Results: In total, 17 studies were considered eligible, in which a total of 1692 TARs were included from 1627 patients. The weighted mean follow-up was 52.4 (range, 1-147) months. The neutral alignment group included 711 TARs, the varus group included 545 TARs, and the valgus group included 332 TARs. Total revisions were 52, 37, and 36 in the preoperative tibiotalar neutral, varus, and valgus alignment groups, respectively. Revisions per 100 observed component years were 1.6, 1.7, and 2.5 in the preoperative tibiotalar neutral, varus, and valgus alignment groups, respectively. A total of 129 complications and 447 additional procedures were reported in 601 TARs. Conclusion: There was a strong indication that preoperative varus alignment in the coronal plane had a comparable implant survival to neutral alignment. Preoperative valgus alignment demonstrated a more negative influence on implant survival. Level of evidence: Level III, systematic review.

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“…The trend toward increased preoperative varus in the loosening group (−4.7 degrees vs −0.1 degrees for the no-loosening group) suggests that large varus deformities may be more resistant to correction with this type of TAA than valgus deformities. While numerous authors have recently shown no difference in revision rates with respect to preoperative coronal deformity, 11,22,30 newer generation implants involving minimal bone resection may be best reserved for cases with less deformity.…”

Section: Discussionmentioning

confidence: 99%

Increased Early Revision Rate With the INFINITY Total Ankle Prosthesis

et al. 2018

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Short-term Results of Total Ankle Arthroplasty for End-stage Ankle Arthritis With Severe Varus Deformity

Abstract: Level III, comparative series.

Cited by 55 publications

References 35 publications

Visualization and quantification of the degenerative pattern of the talus in unilateral varus ankle osteoarthritis

Visualization and quantification of the degenerative pattern of the talus in unilateral varus ankle osteoarthritis

Influence of Preoperative Tibiotalar Alignment in the Coronal Plane on the Survival of Total Ankle Replacement: A Systematic Review

Increased Early Revision Rate With the INFINITY Total Ankle Prosthesis

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