Early radiographic and clinical results of Salto total ankle arthroplasty as a fixed-bearing device

2015 ◽  
Vol 21 (2) ◽  
pp. 91-96 ◽  
Author(s):  
John Chao ◽  
Jae Hyuck Choi ◽  
Benjamin J. Grear ◽  
Shay Tenenbaum ◽  
Jason T. Bariteau ◽  
...  
Keyword(s):  
Clinical Results ◽  
Total Ankle Arthroplasty ◽  
Fixed Bearing ◽  
Ankle Arthroplasty

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

2013 ◽  
Vol 95 (11) ◽  
pp. 1002-1011 ◽  
Author(s):  
Karl M. Schweitzer ◽  
Samuel B. Adams ◽  
Nicholas A. Viens ◽  
Robin M. Queen ◽  
Mark E. Easley ◽  
...  
Keyword(s):  
Clinical Results ◽  
Total Ankle Arthroplasty ◽  
Fixed Bearing ◽  
Ankle Arthroplasty

In vivo kinematics of fixed-bearing total ankle arthroplasty

2020 ◽  
Vol 26 (4) ◽  
pp. 371-377 ◽  
Author(s):  
Gloria Casaroli ◽  
Tomaso Villa ◽  
Alberto Bianchi ◽  
Eleonora Caboni ◽  
Francesco Malerba ◽  
...  
Keyword(s):  
Total Ankle Arthroplasty ◽  
Fixed Bearing ◽  
Ankle Arthroplasty ◽  
In Vivo Kinematics

scholarly journals A Comparison of Cyst Formation and Management in Mobile-Bearing and Fixed-Bearing Total Ankle Arthroplasty

2019 ◽  
Vol 4 (2) ◽  
pp. 2473011419S0000
Author(s):  
James Lachman ◽  
Michel Taylor ◽  
Elizabeth Cody ◽  
Daniel Scott ◽  
James A. Nunley ◽  
...  
Keyword(s):  
Bone Grafting ◽  
Patient Reported Outcomes ◽  
Mobile Bearing ◽  
Cyst Formation ◽  
Total Ankle Arthroplasty ◽  
Fixed Bearing ◽  
Ankle Arthroplasty ◽  
Ankle Replacement ◽  
Patient Reported

Category: Ankle Arthritis Introduction/Purpose: The Scandinavian Total Ankle Replacement(STAR) system and Salto Talaris(ST) total ankle system are two of the more commonly studied total ankle implants. As the STAR is one of the oldest total ankle arthroplasty (TAA) implants still in use today, most studies focus on longevity and survivorship. Reported rates of cyst formation for these two prosthesis in most series vary from 11-22% but no large study has focused on surgical management of these cysts or included patient reported outcomes after surgery. In this series, we aimed to investigate rates of cyst formation between mobile(MB) and fixed-bearing(FB) TAA and examine clinical and patient reported outcomes of bone grafting or cementing of large cysts surrounding the STAR and ST implants. Methods: A prospectively collected database at a high volume total ankle replacement center was retrospectively reviewed to identify patients who underwent TAA with either the STAR or the ST total ankle system between 2007 and 2015. Cysts were identified and measured on standard weight bearing radiographs and confirmed on computed tomography(CT) when available. Visual analog scale (VAS) score, Short Form-36 (SF-36) physical and mental component scores, Short Musculoskeletal Function Assessment(SMFA), and AOFAS hindfoot scores were collected from all patients preoperatively and then at 6 months, 1 year and annually postoperatively. Patients with a minimum 2 years follow-up who underwent revision TAA secondary to catastrophic bone cysts or who were managed with either curettage and bone grafting or curettage and cementing of bone cysts surrounding the TAA prosthesis were included in the patient reported outcomes (PRO) analysis Results: Excluding 53 patients for inadequate follow-up, 232 patients (29% female, 71% male; follow-up 6.7 years) who underwent STAR-TAA and 147 patients (26.6% female, 73.5% male; follow-up 7 years) who underwent ST-TAA were identified. Cysts <20 mm diameter occurred more often in the MB TAAs, and more often in the tibia than talus (table). Cysts >10 mm were identified in 95/232 (41%) STAR and 24/147 (16%) ST ankles. In the STAR group, 24 patients underwent cyst bone grafting (13), cementing (6) or both (8) at a mean 4.8 years. In the ST group, 14 patients underwent cyst bone grafting (6), cementing (4), or both (4) at a mean of 2.7 years. PRO data improved significantly for both the STAR and ST group in all questionnaires (p<0.05 for all). Conclusion: Mobile-bearing total ankle arthroplasty in this cohort had a higher rate of cyst formation greater than 10 mm (95/232 patients, 41%) when compared to a fixed-bearing TAA (24/147, 16.3%). Only 24/95 (25%) of STAR patients and 14/24 (58%) of ST patients required surgical intervention for cyst management. Patient reported outcomes after cyst surgery improved significantly when compared to pre-cyst management surgery and did not differ between MB and FB cohorts (p=0.424). Successful surgical management of large cyst surrounding either mobile-bearing or fixed-bearing total ankle systems can be expected based on the results of this study. [Table: see text]

scholarly journals Nottingham Experience with The Fixed Bearing Infinity Total Ankle Replacement

2020 ◽  
Vol 5 (4) ◽  
pp. 2473011420S0042
Author(s):  
Hatem Salem-Saqer ◽  
Martin Raglan ◽  
Sunil Dhar
Keyword(s):  
Complication Rate ◽  
Weight Bearing ◽  
Total Ankle Replacement ◽  
Total Ankle Arthroplasty ◽  
Implant Design ◽  
Fixed Bearing ◽  
Ankle Arthroplasty ◽  
Ankle Replacement ◽  
End Stage

Category: Ankle; Ankle Arthritis Introduction/Purpose: Total ankle arthroplasty (TAA) is increasingly used for treatment of end stage arthritis of the ankle; improvements continue to evolve in implant design and instrumentation. We present our experience of the Infinity Total Ankle Arthroplasty (Wright Medical), a fixed bearing 4th generation implant with improved instrumentation Methods: This is a retrospective review of prospectively collected data. From October 2016 to July 2019, we identified 92 (52M/40F) who had the infinity Total Ankle Replacement. This review is of 70 patients with a minimum of 1 year follow up (33M,37F). The mean age was 67.5 years (33-87); 32 right side and 38 left no bilaterals. The indication for surgery was end stage Osteoarthritis in 52, post traumatic arthritis 12, inflammatory arthritis 4, conversion of fusion to TAR 2. The preoperative deformity was graded according to the COFAS classification. All patients had follow up at 6 weeks, 3,6 and 12 months and then annually, with MOXFQ questionnaire and weight bearing radiographs. Results: TAA was performed with the use of fluoroscopy. 77% (54/70) had concomitant procedures as listed in Table.5% (4/70) had complications consisting of, 1 DVT, 1 intra operative medial malleolus fracture, 1 EHL tendon laceration and 1 wound break down. There were no deep or superficial infections. Improvement in clinical outcome and PROMS data was noted on follow up. The MOXFQ for Pain improved from 72 pre-op to 25 at 1year (p<0.001). The outcome for Walking improved from 83 pre-op to 30 at one year (p<0.001). Radiological alignment was maintained asymptomatic posterior heterotopic ossification was noted in 23(16%) patients, lucent lines under the tibial implant were noted in 4 ankles and 1 fibula erosion. 2 TAA (3%) needed to be revised due to malpositioning. Conclusion: Our results show significant improvement in patient outcomes, a short recovery time and marked improvement in mobility post operatively with a very low complication rate, we had no deep infection to date. Two implants were revised which we attribute to the learning curve at the start of practice. This implant is fluoroscopically navigated allowing precise implantation with dedicated instrumentation and we feel this attributed to the low complication rate and good results in our short-term study [Table: see text]

scholarly journals The Infinity Total Ankle System

2018 ◽  
Vol 3 (3) ◽  
pp. 2473011418S0038
Author(s):  
Murray Penner ◽  
W. Hodges Davis ◽  
Thomas Bemenderfer ◽  
Feras Waly ◽  
Robert Anderson
Keyword(s):  
Mobile Bearing ◽  
Clinical Results ◽  
Outcome Data ◽  
Total Ankle Arthroplasty ◽  
Ankle Arthroplasty ◽  
Radiographic Outcomes ◽  
Wright Medical Technology ◽  
The Usa ◽  
Component Revision

Category: Ankle Arthritis Introduction/Purpose: Background: Increasing interest in 2-component total ankle arthroplasty (TAA) designs and the increased use of TAA overall has led to the development of a new generation of 2-component TAA implants. The first of these to become available was the Infinity Total Ankle System (Wright Medical Technology, Memphis, TN), introduced in 2014. Despite it currently being the most commonly used TAA implant in the UK and among the most commonly used in the USA, published clinical results are lacking. Purpose: This study presents the first report of the clinical and radiographic outcomes of the Infinity Total Ankle System with minimum 2 year follow-up Methods: The first 67 consecutive patients who underwent primary Infinity total ankle arthroplasty (TAA) at 2 North American sites between 2013 and 2015 were reviewed in a prospective observational study. Demographic, radiographic, and functional outcome data was collected preoperatively, at 6-12 months postoperatively, and annually thereafter. Results: The overall implant survival rate was 97% (65 of 67 implants) at mean follow up of 3 years (range 27-47 months). Two cases underwent talar component revision for aseptic loosening. Six of the 67 cases (9%) required a non-revision reoperation. Mean FFI and AOS scores at latest follow up improved from preoperative by 21.6 (p<0.0001) and 34.0 (p<0.0001), respectively. No radiographic loosening of any talar or tibial components was identified in the 65 non-revised cases. Conclusion: Early clinical and radiographic outcomes with the Infinity TAA are promising and compare favorably to those reported for both fixed- and mobile-bearing third generation TAA designs, even when used in cases with deformity and increased case complexity.

scholarly journals Total Ankle Arthroplasty

2018 ◽  
Vol 3 (2) ◽  
pp. 2473011418S0001
Author(s):  
Benjamin Hendy ◽  
Steven Raikin ◽  
David Pedowitz ◽  
Rachel Shakked ◽  
Ryan Rogero ◽  
...  
Keyword(s):  
Range Of Motion ◽  
Weight Bearing ◽  
Total Ankle Arthroplasty ◽  
Measurement Tool ◽  
Fixed Bearing ◽  
Ankle Arthroplasty ◽  
Functional Scores ◽  
The Mean ◽  
Picture Archiving And Communication ◽  
And Function

Category: Ankle, Ankle Arthritis Introduction/Purpose: Reports of ankle range of motion and how it affects patient outcomes following total ankle arthroplasty (TAA) have been mixed. Furthermore, recent studies have relied on clinical exam to obtain postoperative range of motion and have lacked preoperative functional scores. The purpose of our study was to analyze how preoperative range of motion and functional scores change with time following TAA using postoperative functional scores and radiographs for range of motion calculations. Methods: A retrospective chart review was performed on 107 patients (109 ankles) that had undergone fixed-bearing implant TAA by a single surgeon between 2010 and 2015. Preoperative range of motion was gathered clinically in office by the senior author. Postoperative range of motion through the ankle joint was evaluated with dedicated weight-bearing maximum dorsiflexion and plantarflexion lateral radiographs at 3 and 6 months, 1 and 2 years. The range of motion was measured using the angle measurement tool on the picture archiving and communication system. Patients completed visual analogue scale (VAS) for pain and the Foot and Ankle Ability Measure (FAAM) questionnaire subcategorized into activities of daily (ADL) and sports subscale preoperatively and at postoperative intervals of 3 and 6 months, 1 and 2 years. The mean age was 65 years (range, 31-83 years). Mean BMI was 28.1 (range, 14.9-44.9). There were 53 males (50%). Results: The mean total arc of ankle motion preoperatively was 20.7 degrees and improved significantly to 28.3, 34.3, 33.3, and 33.3 degrees at 3 and 6 months, 1 and 2 years, respectively (P<0.001) (Figure 1). Mean VAS pain and mean FAAM ADL preoperative scores improved significantly at each postoperative time point as seen in Figure 1 (P<0.001). Increased ankle range of motion was correlated with lower VAS preoperatively (r=-0.38, P=0.007), and at 1 year (r=-0.36, P<0.001), and 2 years (r=-0.2, P=0.033) postoperatively. Increased ankle range of motion was significantly correlated with higher FAAM-ADL at 3 months (r=0.48, P=0.012), 1 year (r=0.24, P<0.034), and 2 years (r=0.37, P<0.001) postoperatively. Conclusion: Patients undergoing fixed-bearing TAA had continued and sustained improvement from preoperative total arc of motion, pain, and function at each postoperative visit, up to 2 years. Ankle range of motion was noted to peak at 6 months, while pain and FAAM-ADL continued to improve up to 2 years postoperatively. Patients with greater ankle range of motion correlated with less pain and improved function at 1 and 2 years postoperatively. Though pain and function may continue to improve even as far out as 2 years postoperatively, it is not likely that range of motion will continue to increase.

Early to Mid-Term Results of Fixed-Bearing Total Ankle Arthroplasty with a Modular Intramedullary Tibial Component

2014 ◽  
Vol 96 (23) ◽  
pp. 1983-1989 ◽  
Author(s):  
Samuel B. Adams ◽  
Constantine A. Demetracopoulos ◽  
Robin M. Queen ◽  
Mark E. Easley ◽  
James K. DeOrio ◽  
...  
Keyword(s):  
Tibial Component ◽  
Total Ankle Arthroplasty ◽  
Fixed Bearing ◽  
Ankle Arthroplasty ◽  
Mid Term Results

scholarly journals Three-Year Rates of Reoperation and Revision Following Mobile Versus Fixed-Bearing Total Ankle Arthroplasty

2021 ◽  
Vol Publish Ahead of Print ◽  
Author(s):  
M. Assal ◽  
H. Kutaish ◽  
A. Acker ◽  
J. Hattendorf ◽  
A. Lübbeke ◽  
...  
Keyword(s):  
Total Ankle Arthroplasty ◽  
Fixed Bearing ◽  
Ankle Arthroplasty
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