Early Prospective Clinical Results of a Modern Fixed-Bearing Total Ankle Arthroplasty

Schweitzer, Karl M.; Adams, Samuel B.; Viens, Nicholas A.; Queen, Robin M.; Easley, Mark E.; DeOrio, James K.; Nunley, James A.

doi:10.2106/jbjs.l.00555

Cited by 96 publications

(104 citation statements)

References 52 publications

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“…In addition, A-OA led to limited knee range of motion throughout the stance phase, but the pattern of movement is very similar to the control subjects, which would be an indication that these A-OA subjects are not using the knee as the main compensation. In the same way that H-OA subjects appear to use ankle motion to compensate for limited hip extension, A-OA subjects compensate for limited ankle motion through increased hip extension during terminal stance, a pattern reflective of limited ankle motion [13,15,31,32]. These results indicate that the A-OA subjects are using a greater hip range of motion possibly to take advantage of hip extension to power the last part of stance as they move into the swing phase.…”

Section: Discussionmentioning

confidence: 71%

Effect of end-stage hip, knee, and ankle osteoarthritis on walking mechanics

Schmitt¹,

Vap²,

Queen³

2015

Gait & Posture

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Section: Discussionmentioning

confidence: 71%

Effect of end-stage hip, knee, and ankle osteoarthritis on walking mechanics

Schmitt¹,

Vap²,

Queen³

2015

Gait & Posture

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“…On the basis of current literature, survivorship of total ankle arthroplasty implants, when measured as the retention of metal components, ranges from 70% to 98% at 3 to 6 years, and 80% to 95% at 8 to 12 years. 8 High survivorship of the STAR and Salto-Talaris implants have been recently reported at 93.9% at 5 years 20 and 96.0% at 2.8 years, 24 respectively, with marked improvement of pain, function, and quality-of-life measures; 20,24 there are no published studies evaluating the survivorship of INBONE prostheses at similar length follow-up to date. The survivorship of both groups in this study is consistent with results reported in the recent literature.…”

Section: Discussionmentioning

confidence: 99%

Outcomes After Total Ankle Replacement in Association With Ipsilateral Hindfoot Arthrodesis

et al. 2014

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Background: Ipsilateral hindfoot arthrodesis in combination with total ankle replacement (TAR) may diminish functional outcome and prosthesis survivorship compared to isolated TAR. We compared the outcome of isolated TAR to outcomes of TAR with ipsilateral hindfoot arthrodesis. Methods: In a consecutive series of 404 primary TARs in 396 patients, 70 patients (17.3%) had a hindfoot fusion before, after, or at the time of TAR; the majority had either an isolated subtalar arthrodesis (n = 43, 62%) or triple arthrodesis (n = 15, 21%). The remaining 334 isolated TARs served as the control group. Mean patient follow-up was 3.2 years (range, 24-72 months). Results: The SF-36 total, AOFAS Hindfoot-Ankle pain subscale, Foot and Ankle Disability Index, and Short Musculoskeletal Function Assessment scores were significantly improved from preoperative measures, with no significant differences between the hindfoot arthrodesis and control groups. The AOFAS Hindfoot-Ankle total, function, and alignment scores were significantly improved for both groups, albeit the control group demonstrated significantly higher scores in all 3 scales. Furthermore, the control group demonstrated a significantly greater improvement in VAS pain score compared to the hindfoot arthrodesis group. Walking speed, sit-to-stand time, and 4-square step test time were significantly improved for both groups at each postoperative time point; however, the hindfoot arthrodesis group completed these tests significantly slower than the control group. There was no significant difference in terms of talar component subsidence between the fusion (2.6 mm) and control groups (2.0 mm). The failure rate in the hindfoot fusion group (10.0%) was significantly higher than that in the control group (2.4%; p < 0.05). Conclusion: To our knowledge, this study represents the first series evaluating the clinical outcome of TARs performed with and without hindfoot fusion using implants available in the United States. At follow-up of 3.2 years, TAR performed with ipsilateral hindfoot arthrodesis resulted in significant improvements in pain and functional outcome; in contrast to prior studies, however, overall outcome was inferior to that of isolated TAR. Level of Evidence: Level II, prospective comparative series.

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“…Early clinical results indicate that the Salto Talaris fixed-bearing TAR system can provide significant improvements in terms of pain, quality of life, and standard functional measures in patients with end-stage ankle arthritis [34]. Implant survival at a mean follow-up time of 2.8 years was 96% when metallic component revision, removal, or impending failure was used as the endpoint.…”

Section: Outcomes Of Tarmentioning

confidence: 99%

The Current Trend of Total Ankle Replacement

Zhou¹,

Tang²

2016

Arthroplasty - A Comprehensive Review

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Total ankle replacement (TAR) was introduced for end-stage arthritis of the ankle joint in the 1970s. TAR is becoming the modality of choice and offers better mobility, improved gait, and reduces the development of subsequent subtalar joint arthritis when compared with ankle arthrodesis. To maintain the longest function of ankle replacements, the design of the prosthesis should allow for smooth and continuous interaction and normal gait. Improved operative techniques, the surgeon's experience, as well as appropriate patient selection can anticipate better outcomes. Deformities of the ankle and foot should be corrected before TAR is performed. Despite the functional limitations following the revision of TAR, the revision still offers a cost-effective alternative to ankle arthrodesis. The decision to treat with TAR depends on the surgeon's technique, as well as on the patient's condition.

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Early Prospective Clinical Results of a Modern Fixed-Bearing Total Ankle Arthroplasty

Abstract: Therapeutic Level IV. See Instructions for Authors for a complete description of levels of evidence.

Cited by 96 publications

References 52 publications

Effect of end-stage hip, knee, and ankle osteoarthritis on walking mechanics

Effect of end-stage hip, knee, and ankle osteoarthritis on walking mechanics

Outcomes After Total Ankle Replacement in Association With Ipsilateral Hindfoot Arthrodesis

The Current Trend of Total Ankle Replacement

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