scholarly journals Comparison of second and third generation total ankle arthroplasty learning curves

2018 ◽  
Vol 3 (3) ◽  
pp. 2473011418S0018
Author(s):  
Ryan Callahan ◽  
Michael Aynardi ◽  
Kempland Walley ◽  
Kaitlin Saloky ◽  
Paul Juliano
Keyword(s):  
Learning Curve ◽  
Learning Curves ◽  
Total Ankle Arthroplasty ◽  
Complication Rates ◽  
Fixed Bearing ◽  
Ankle Arthroplasty ◽  
2Nd Generation ◽  
Significant Difference ◽  
Surgeon Experience ◽  
Reoperation Rates

Category: Ankle Arthritis Introduction/Purpose: Total ankle arthroplasty (TAA) has evolved over the past decades with later generation implants being associated with improved instrumentation and hardware. There have been multiple reports of the “learning curve” associated with total ankle arthroplasty. These report higher complication rates during the initial procedures performed by an inexperienced surgeon. To our knowledge, there is no comparison of the 2nd generation and 3 rd generation implant learning curves. Methods: The clinical outcomes of the first 15 cases (8/2002-4/2005) of a 2nd generation fixed bearing prosthesis (Agility Total Ankle System) and the first 15 cases (6/2007-3/2009) of a 3 rd generation fixed bearing prosthesis (Salto Talaris® TotalAnkle Prosthesis) performed by a single surgeon were retrospectively reviewed to determine complication incidence. The initial cases with each system were also independently reviewed to determine if there was a significant learning curve in regards to complications. Reoperation, infection, gutter impingement, fracture, persistent pain, and periprosthetic cyst formation were included for comparison of complication rates. Results: The overall complication rates for the Agility were 54.9% (28/51) and 35.7% (25/70) for Salto Talaris. There was no significant difference in reoperation rates when comparing the first 15 Agility cases (8/15, 53%) to the remainder of Agility cases (11/36, 30.6%) p=0.2. The initial 15 Salto Talaris cases also demonstrated no significant difference in reoperation rates (1/15, 8%) when compared to the remaining Salto Talaris replacements (7/55, 12.7%) p=1. Reoperation rates were higher in the initial 15 Agility cases (8/15, 53%) compared to the initial 15 Salto cases (1/15, 8%) p=0.01. There was no significant difference in infection, hardware failure, and medial malleolus fracture rates for any of the groups. Conclusion: While this series demonstrated no significant learning curve for each individual total ankle system, there was a significantly higher reoperation rate in the initial cases for the 2nd generation TAA when compared to the initial cases of the 3 rd generation implants. This could be attributed to improved instrumentation and hardware and/or surgeon experience.

scholarly journals Can Specific Implant Designs Implicate Variations in Outcomes of Total Ankle Arthroplasty? A Systematic Review

2017 ◽  
Vol 2 (3) ◽  
pp. 2473011417S0004
Author(s):  
Dahang Zhao ◽  
Dichao Huang ◽  
Chen Wang ◽  
Xin Xin Ma
Keyword(s):  
Case Reports ◽  
Intraoperative Complications ◽  
Total Ankle Arthroplasty ◽  
Implant Design ◽  
Complication Rates ◽  
Radiographic Findings ◽  
Ankle Arthroplasty ◽  
Surgeon Experience ◽  
Comprehensive Search ◽  
Reoperation Rates

Category: Ankle Arthritis Introduction/Purpose: Some complications of total ankle arthroplasty could not be reduced by improvement of surgeon experience. The purposes of the study were to determine whether there were variations in term of (1) intraoperative complications, (2) postoperative complication, (3) reoperation, revision and failure, and (4) postoperative radiographic findings among different studies. Methods: A comprehensive search was conducted. There were 953 for initial review. Initially, 136 irrelevant records, 174 review articles, 46 case reports and 1 retracted paper were excluded. Of the remaining 596 papers, 23 ultimately met our inclusion for final review. Results: Intraoperative fractures rates were higher studies of BP-type. Most of the pain or stiffness, malalignments, impingements, cysts were occurred in studies of STAR, HINTEGRA, Agility and Salto. Polyethylene insert fractures were occurred in most studies of STAR. Ten reported postoperative osseous fractures which all resulted from patients used STAR and BP-type. Reoperation rates were higher in studies of STAR, BP-type, Agility and Salto. Arthrodesis rates were lower from HINTEGRA. Arthrodesis rates from STAR, BP-type and Salto were higher than their revision rates. Periprosthetic lucency rates were lower from studies of HINTEGRA. The lucency rates of tibia were higher than talus. Cyst could be more easily observed from studies of STAR, Agility and Salto. All the osteoarthritis were reported in studies of STAR, BP-type and Agility. Conclusion: Currently the complication rates of TAA significantly decrease with modern implants, surgeons experience and patients selection. Some design-specific features of different prostheses were found in our study which could implicate variations in the complications and radiographic findings. We believed that these result could further improve the implant design.

Single-Surgeon Experience and Complications of a Fixed-Bearing Total Ankle Arthroplasty

2017 ◽  
Vol 39 (1) ◽  
pp. 46-58 ◽  
Author(s):  
Garett J. Pangrazzi ◽  
Erin A. Baker ◽  
Phillip J. Shaheen ◽  
Chikezie N. Okeagu ◽  
Paul T. Fortin
Keyword(s):  
Learning Curve ◽  
Case Series ◽  
Mobile Bearing ◽  
Total Ankle Arthroplasty ◽  
Fixed Bearing ◽  
Retrospective Case ◽  
Level Of Evidence ◽  
Ankle Arthroplasty ◽  
Surgeon Experience

Background: Total ankle arthroplasty (TAA) has historically resulted in inferior survivorship rates compared with total hip and knee arthroplasty, because of technical issues unique to ankle anatomy. In this study, a single-surgeon series of intra- and postoperative complications as well as resultant reoperations/revisions of the Tornier Salto Talaris, a fixed-bearing TAA prosthesis, were reviewed. Methods: Medical records from index procedure to latest follow-up of primary TAA were reviewed. Complications were categorized according to the Glazebrook classification; additional complications were documented. Concurrent procedures were recorded, and radiographs were analyzed for alignment, subsidence, and cyst formation. Time to complication onset and learning curve analyses were performed. One hundred four Salto Talaris TAA prostheses (96 patients), with an average follow-up of 46 months, were included. Results: Thirty-five complications were identified in 32 ankles with a 34% complication rate, resulting in 11 reoperations (5 TAA revisions). Technical error (n = 12), wound healing (n = 9), and aseptic loosening (n = 4) were the most common complications, and there were no statistically significant differences in demographics or follow-up duration between cases with versus without complications. In both the cohorts with and without complications, there were moderate, negative correlations between radiographically observed keel osteopenia and lucency (ρ = −0.548, P = .00125, and ρ = −0.416, P = .000303, respectively); also, in the complication cohort, a weak, positive correlation between subsidence and lucency (ρ = 0.357, P = .0450) was found. Conclusion: Salto Talaris TAA survivorship and reoperation rates in our series were comparable with previous reports, using either the same or similar mobile-bearing prostheses; new information regarding complication, radiographic, and learning curve analyses was presented. Level of Evidence: Level IV, retrospective case series.

scholarly journals Effect of Travel Time and Distance on Outcomes in Total Ankle Arthroplasty

2020 ◽  
Vol 5 (4) ◽  
pp. 2473011420S0015
Author(s):  
Kristin C. Caolo ◽  
Scott J. Ellis ◽  
Jonathan T. Deland ◽  
Constantine A. Demetracopoulos
Keyword(s):  
Travel Time ◽  
Complication Rate ◽  
High Volume ◽  
Total Ankle Arthroplasty ◽  
Complication Rates ◽  
Linear Regression Models ◽  
Ankle Arthroplasty ◽  
Significant Difference ◽  
Drive Time

Category: Ankle; Ankle Arthritis Introduction/Purpose: Surgeons who perform a higher volume of total ankle arthroplasty (TAA) are known to have decreased complication rates; evidence shows that low volume centers performing TAA have decreased survivorship when compared with high volume centers. Understanding differences in outcomes for patients traveling different distances for their TAA is important for future patients deciding where to travel for their surgery. No study has previously examined differences in outcomes of patients traveling different distances to a high volume center for their TAA. This study compares preoperative and postoperative PROMIS scores for patients undergoing total ankle arthroplasty who traveled less than and more than 50 miles for their TAA. We hypothesized that there would be no difference in outcome scores based on distance traveled or estimated drive time. Methods: This study is a single center retrospective review of 162 patients undergoing primary total ankle arthroplasty between January 2016 and December 2018. We collected the primary address as listed in the patient’s medical record and used the directions feature on Google Maps to estimate driving mileage and estimated driving time from the patient’s address to the hospital. To analyze the distance patients traveled, patients were divided into two groups: <50 miles traveled (n=91) and >50 miles traveled (n=71). To analyze the estimated drive time, patients were divided into two groups: <90 minutes (n=77), >90 minutes (n=85). We collected preoperative and most recent postoperative PROMIS scores for all patients. Differences in most recent post-operative PROMIS scores between distance groups and travel time groups were assessed using multivariable linear regression models, adjusting for the pre-operative score and follow-up time. Results: We found no significant difference in post-operative PROMIS scores between the two groups when analyzed for distance traveled or for estimated travel time after adjustment for pre-operative PROMIS score and follow-up time (Table 1). The average follow-up for all 162 patients was 1.49 years. Power analysis showed that with a sample size of 110 (55 in each group), we had 81% power to detect an effect size of 4. Patients saw an increase in their Physical Function scores and a decrease in their Pain Interference and Pain Intensity scores with postoperative scores better than population means (Table 1). Overall complication rate for the <50 miles group was 17.6%, 7.7% required surgery. The >50 miles group had an overall complication rate of 24.0%, 9.9% required surgery. Conclusion: Patients traveling further distances to a high volume orthopedic specialty hospital for their total ankle arthroplasty do not have different clinical outcomes than patients traveling shorter distances. This is particularly important for patients deciding where to have their total ankle arthroplasty surgery. Patients who travel further have the opportunity to be treated at a local academic center; however our results show that outcomes do not change when traveling further for total ankle arthroplasty. [Table: see text]

Single-Incision Laparoscopic Cholecystectomy: A Combined Analysis of Resident and Attending Learning Curves at a Single Institution

2012 ◽  
Vol 78 (1) ◽  
pp. 119-124
Author(s):  
Mark Joseph ◽  
Michael Phillips ◽  
Christopher C. Rupp
Keyword(s):  
Laparoscopic Cholecystectomy ◽  
Learning Curve ◽  
Single Incision ◽  
Learning Curves ◽  
Patient Specific ◽  
Short Learning Curve ◽  
Significant Difference ◽  
Surgeon Experience ◽  
Standard Laparoscopic Cholecystectomy ◽  
Single Incision Laparoscopic Cholecystectomy

Single-incision laparoscopic cholecystectomy (SILC) is a recent technical modification on standard laparoscopic cholecystectomy that has been shown to be safe and feasible. Recent studies suggest that experienced laparoscopic surgeons have a short learning curve to become proficient in SILC. However, little is known about the interaction of the learning curves of residents and attending surgeons at academic programs. We prospectively evaluated various metrics of both attending and resident surgeons as they progressed in their experience with SILC. Patients were placed into cohorts of 25 based on teaching surgeon experience. Data recorded included patient-specific and operative variables along with complications, conversion to standard laparoscopic cholecystectomy, and outcomes. One hundred one patients underwent SILC. Twelve per cent of patients required conversion to standard laparoscopic cholecystectomy. No significant difference was found in operative times compared within the experience-based cohorts ( P = 0.21). A reduction in operative time was shown in residents who were proficient in standard laparoscopic cholecystectomy (SLC) along their learning curve. Operative times remained the same for the teaching surgeon regardless of experience of resident surgeon. SILC has a short learning curve for resident surgeons who are proficient in standard laparoscopic surgery. SILC can be effectively taught with few complications and outcomes similar to SLC with preservation of operative efficiency and safety. Further studies are warranted, however, at a national/international level to define the place and use for SILC as well as the incorporation of single-incision techniques into resident curriculum.

scholarly journals A Comparative Analysis of Short Term Postoperative Complications in Outpatient vs. Inpatient Total Ankle Arthroplasty

2018 ◽  
Vol 3 (3) ◽  
pp. 2473011418S0042 ◽  
Author(s):  
Ashish Shah ◽  
Henry DeBell ◽  
Chandler Tedder ◽  
Zachariah Pinter ◽  
Sameer Naranje ◽  
...  
Keyword(s):  
Pulmonary Embolism ◽  
Renal Failure ◽  
Hospital Stay ◽  
Operating Room ◽  
Ankle Arthrodesis ◽  
Total Ankle Arthroplasty ◽  
Inpatient Setting ◽  
Complication Rates ◽  
Ankle Arthroplasty ◽  
Significant Difference

Category: Ankle Introduction/Purpose: Ankle arthritis is a potentially debilitating disease with approximately 50,000 cases diagnosed annually. Once conservative management fails, surgical options for these patients include total ankle arthroplasty (TAA) and ankle arthrodesis. Younger, more active patients may prefer TAA as it may allow better ankle mobility compared to ankle arthrodesis. TAA has historically been performed in the inpatient setting with a one- to two-night postoperative hospital stay. Outpatient surgeries are gaining popularity due to their cost effectiveness, decreased length of hospital stay, and convenience. Therefore, it is important to evaluate the safety of specific procedures in the outpatient setting compared to the inpatient setting. This study evaluates the complication rates in inpatient vs. outpatient TAA. Methods: Our team conducted a retrospective analysis of data from 591 patients receiving inpatient and outpatient TAA from the NSQIP database. This database contains de-identified patient data and allows retrospective analyses to be performed based on data they have extracted from over 400 hospitals. Demographic information was recorded including age, sex, weight, height, and race. Thirty-day postoperative complication rates were compared between 66 outpatients and 535 inpatients. Frequencies of the following complications were analyzed: wound complications, pneumonia, hematologic complications (pulmonary embolism and deep vein thrombosis), renal failure, stroke, and return to the operating room within 30 days. The inpatient and outpatient groups were compared using chi-squared tests for categorical variables and Wilcoxon rank-sum tests for continuous variables. Results: 591 total patients were identified that underwent TAA. 66 patients (11.1%) were treated as outpatients and 525 (88.8%) as inpatients. Inpatient TAA had a significantly higher mean operation time (161 min vs 148 min) and a significant difference in length of total hospital stay (2.3 days vs 1.1 days). Inpatients had higher rates of superficial incisional surgical site infection (SSI) (0.57% vs 0%), deep SSI (0.19 % vs 0%), organ/space SSI (0.19% vs 0%), pneumonia (0.38% vs 0%), and return to the operating room (0.76% to 0%). However, no significant differences were found in complication rates between inpatient and outpatient groups. There were no occurrences of acute renal failure, wound disruption, pulmonary embolism, stroke, or DVT/thrombophlebitis for inpatients or outpatients. Conclusion: We found no significant difference between inpatient vs. outpatient TAA. Incidental differences we found were that inpatients were significantly more likely to be older in age, diagnosed with diabetes, and inpatients had longer operative times. Our results suggest that inpatients are more likely, but not significantly, to have a higher occurrence of complications and return to the OR. Therefore, this study suggests that outpatient TAA is safe and may be a superior option for the correct patient population. Further investigation is warranted to verify these conclusions.

30-Day Outcomes for Total Ankle Arthroplasty in Patients With Anemia

2021 ◽  
pp. 107110072110175
Author(s):  
Jordan R. Pollock ◽  
Matt K. Doan ◽  
M. Lane Moore ◽  
Jeffrey D. Hassebrock ◽  
Justin L. Makovicka ◽  
...  
Keyword(s):  
Length Of Stay ◽  
Univariate Analysis ◽  
Hospital Length ◽  
Total Ankle Arthroplasty ◽  
Hospital Length Of Stay ◽  
Preoperative Anemia ◽  
Improvement Project ◽  
Average Hospital ◽  
Ankle Arthroplasty ◽  
Reoperation Rates

Background: While anemia has been associated with poor surgical outcomes in total knee arthroplasty and total hip arthroplasty, the effects of anemia on total ankle arthroplasty remain unknown. This study examines how preoperative anemia affects postoperative outcomes in total ankle arthroplasty. Methods: A retrospective analysis was performed using the American College of Surgeons National Surgery Quality Improvement Project database from 2011 to 2018 for total ankle arthroplasty procedures. Hematocrit (HCT) levels were used to determine preoperative anemia. Results: Of the 1028 patients included in this study, 114 patients were found to be anemic. Univariate analysis demonstrated anemia was significantly associated with an increased average hospital length of stay (2.2 vs 1.8 days, P < .008), increased rate of 30-day readmission (3.5% vs 1.1%, P = .036), increased 30-day reoperation (2.6% vs 0.4%, P = .007), extended length of stay (64% vs 49.9%, P = .004), wound complication (1.75% vs 0.11%, P = .002), and surgical site infection (2.6% vs 0.6%, P = .017). Multivariate logistic regression analysis found anemia to be significantly associated with extended hospital length of stay (odds ratio [OR], 1.62; 95% CI, 1.07-2.45; P = .023) and increased reoperation rates (OR, 5.47; 95% CI, 1.15-26.00; P = .033). Anemia was not found to be a predictor of increased readmission rates (OR, 3.13; 95% CI, 0.93-10.56; P = .066) or postoperative complications (OR, 1.27; 95% CI, 0.35-4.56; P = .71). Conclusion: This study found increasing severity of anemia to be associated with extended hospital length of stay and increased reoperation rates. Providers and patients should be aware of the increased risks of total ankle arthroplasty with preoperative anemia. Level of Evidence: Level III, retrospective comparative study.

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]

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