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https://www.readbyqxmd.com/read/29416985/posterior-tibial-tendon-endoscopic-debridement-for-stage-i-and-ii-posterior-tibial-tendon-dysfunction
#1
Jeffrey Wake, Kevin Martin
Adult acquired flatfoot deformity (AAFD), formerly known as posterior tibial tendon (PTT) dysfunction, is one of the most common problems of the foot and ankle. It was first described as tendon failure but has since been revealed as ligamentous failure in addition. AAFD is a spectrum of deformities that ranges from tenosynovitis (stage I) to AAFD (stages II-IV). Regarding mild stage I and stage II disease, it was once standard to perform an open synovectomy completely removing the inflamed synovium; this procedure required a large 6-cm medial ankle incision...
October 2017: Arthroscopy Techniques
https://www.readbyqxmd.com/read/29409191/evaluation-of-peritalar-subluxation-in-adult-acquired-flatfoot-deformity-using-computed-tomography-and-weightbearing-multiplanar-imaging
#2
Grace C Kunas, William Probasco, Amgad M Haleem, Jayme C Burket, Emilie R C Williamson, Scott J Ellis
BACKGROUND: The aim of this study was to assess the inferior talus-superior talus (inf-tal-sup-tal) angle (previously proven reliable in multiplanar-weight bearing imaging (MP-WB)) on both computed tomography (CT) and MP-WB scans. We sought to compare the angle between the two modalities in both AAFD and control groups, as well as to compare the groups to each other. METHODS: Inf-tal-sup-tal angles were compared between a stage II AAFD group (n=38) with routine MP-WB and CT scans and a control group (n=20) with preoperative CT scans for lisfranc injuries and normal hindfoot alignment after healing...
June 12, 2017: Foot and Ankle Surgery: Official Journal of the European Society of Foot and Ankle Surgeons
https://www.readbyqxmd.com/read/29194779/the-pathological-kinematic-patterns-of-the-tarsal-complex-in-stage-ii-adult-acquired-flatfoot-deformity
#3
Chen Wang, Heng Wang, Shengxuan Cao, Shaobai Wang, Xin Ma, Xu Wang, Jiazhang Huang, Chao Zhang, Li Chen, Xiang Geng, Kan Wang
The in vivo kinematic characteristics of the tarsal joints during gait stance phase were still unclear in adult-acquired foot deformity (AAFD). This study included seven healthy subjects (fourteen feet) and twelve stage II AAFD patients (fourteen feet). The 3D models of tarsal bones were reconstructed based on CT scan. Each subject took standard gait on the single fluoroscopy system. Continuous lateral fluoroscopic images were collected. The key postures during the stance phase were selected. The 2D-3D registration technique was applied to explore the spatial motions of the tarsal joints in 6 degrees of freedom (DOF)...
November 30, 2017: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
https://www.readbyqxmd.com/read/29194449/reported-selection-criteria-for-adult-acquired-flatfoot-deformity-and-posterior-tibial-tendon-dysfunction-are-they-one-and-the-same-a-systematic-review
#4
REVIEW
Megan H Ross, Michelle D Smith, Bill Vicenzino
BACKGROUND: Posterior tibial tendon dysfunction (PTTD) and adult acquired flatfoot deformity (AAFD) are used interchangeably, although both suggest quite different pathological processes. OBJECTIVE: To investigate key differences in selection criteria used for inclusion into research studies. METHODS: An electronic database search was performed from inception to June 2016. All primary research articles with clear inclusion/diagnostic criteria for PTTD or AAFD were included in the review...
2017: PloS One
https://www.readbyqxmd.com/read/29126039/the-resistance-to-failure-of-spring-ligament-reconstruction
#5
Chandra Pasapula, Adam Devany, Nicole C Fischer, Coen A Wijdicks, Tim Hübner, Franziska Reifenscneider, Sajid Shariff
INTRODUCTION: The spring ligament (SL) is increasingly recognised as the major structure that fails in acquired adult flatfoot deformity (AAFD). This is the first study that demonstrates integrity of repair of the SL. PATIENTS AND METHODS: Six pairs of fresh frozen cadavers were setup in a standardised fashion with ankle in plantargrade (mean age 59 years, BMI 25). A 25N lateral force was applied to the medial metatarsal head using an algometer. Lateral displacement of the foot was measured with SL intact, sectioned, following FibreWire® repair, then Arthrex InternalBrace (IB) reconstruction, then with selective sectioning of each limb of the IB reconstruction...
December 2017: Foot
https://www.readbyqxmd.com/read/29073794/porous-titanium-wedges-in-lateral-column-lengthening-for-adult-acquired-flatfoot-deformity
#6
Spencer H Moore, S Evan Carstensen, M Tyrrell Burrus, Truitt Cooper, Joseph S Park, Venkat Perumal
Lateral column lengthening (LCL) is a common procedure for reconstruction of stage II flexible adult-acquired flatfoot deformity (AAFD). The recent development of porous titanium wedges for this procedure provides an alternative to allograft and autograft. The purpose of this study was to report radiographic and clinical outcomes achieved with porous titanium wedges in LCL. A retrospective analysis of 34 feet in 30 patients with AAFD that received porous titanium wedges for LCL from January 2011 to October 2014...
October 1, 2017: Foot & Ankle Specialist
https://www.readbyqxmd.com/read/29060769/automatic-atrial-fibrillation-detection-a-novel-approach-using-discrete-wavelet-transform-and-heart-rate-variability
#7
Iben H Bruun, Semira M S Hissabu, Erik S Poulsen, Sadasivan Puthusserypady
Early detection of Atrial Fibrillation (AF) is crucial in order to prevent acute and chronic cardiac rhythm disorders. In this study, a novel method for robust automatic AF detection (AAFD) is proposed by combining atrial activity (AA) and heart rate variability (HRV), which could potentially be used as a screening tool for patients suspected to have AF. The method includes an automatic peak detection prior to the feature extraction, as well as a noise cancellation technique followed by a bagged tree classification...
July 2017: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28690463/in-vivo-plantar-pressures-in-adult-acquired-flatfoot-compared-to-control-using-an-intraoperative-pedobarographic-device
#8
Aoife MacMahon, Howard J Hillstrom, Huong T Do, Jeremy Y Chan, Jonathan T Deland, Scott J Ellis
BACKGROUND: Intraoperative pedobarography has the potential to aid surgical decisions, but no parameters exist to guide its use. QUESTIONS/PURPOSES: This study compared supine plantar pressures between flatfoot patients and controls using a previously validated intraoperative pedobarographic device and examined associations between supine, walking, and standing plantar pressures. METHODS: Ten preoperative patients with stage II adult-acquired flatfoot deformity (AAFD) were compared to ten healthy controls...
July 2017: HSS Journal: the Musculoskeletal Journal of Hospital for Special Surgery
https://www.readbyqxmd.com/read/28623061/comparison-of-extraosseous-talotarsal-stabilization-implants-in-a-stage-ii-adult-acquired-flatfoot-model-a-finite-element-analysis
#9
Jian Xu, Xin Ma, Daping Wang, Wei Lu, Weimin Zhu, Kan Ouyang, Haifeng Liu, Hao Li, Luoyong Jiang
Subtalar arthroereisis has been proved to be an efficient method for correcting flexible adult flatfoot. However, the optimal sinus tarsi implant is still debated and yet to be determined. In the present study, we compared the biomechanical effects of type I and II sinus tarsi implants in stage II adult-acquired flatfoot deformity (AAFD). First, a finite element model of stage II AAFD was established in which virtual surgery of subtalar arthroereisis was simulated. The indexes of plantar stress distribution, peak von Mises of the medial and lateral columns, strain of the medial ligaments and plantar fascia, arch height, talo-first metatarsal angle, calcaneus pitch angle, talonavicular coverage angle, and hindfoot valgus angle were all compared and analyzed...
September 2017: Journal of Foot and Ankle Surgery: Official Publication of the American College of Foot and Ankle Surgeons
https://www.readbyqxmd.com/read/28324203/adult-acquired-flatfoot-deformity
#10
REVIEW
Niall A Smyth, Amiethab A Aiyer, Jonathan R Kaplan, Clayton A Carmody, Anish R Kadakia
Adult-acquired flatfoot deformity (AAFD) is a known and recognized cause of pain and disability. Loss of PTT function is the most important contributor to AAFD, and its estimated prevalence is thought to be over 3%. This review aims to summarize the current literature and encompass recent advances regarding AAFD.
May 2017: European Journal of Orthopaedic Surgery & Traumatology: Orthopédie Traumatologie
https://www.readbyqxmd.com/read/27885384/use-of-the-arthroereisis-screw-with-tendoscopic-delivered-platelet-rich-plasma-for-early-stage-adult-acquired-flatfoot-deformity
#11
Youichi Yasui, Ichiro Tonogai, Andrew J Rosenbaum, David M Moore, Masato Takao, Hirotaka Kawano, John G Kennedy
PURPOSE: Early stage adult acquired flatfoot deformity (AAFD) is traditionally treated with osteotomy and tendon transfer. Despite a high success rate, the long recovery time and associated morbidity are not sufficient. This study aims to evaluate the functional and radiological outcomes following the use of the arthroereisis screw with tendoscopic delivered PRP for early stage AAFD. METHODS: Patients with stage IIa AAFD who underwent the use of the arthroereisis screw with tendoscopic delivered PRP with a minimum follow-up time of 24 months were retrospectively evaluated...
February 2017: International Orthopaedics
https://www.readbyqxmd.com/read/27556250/patient-specific-computational-models-to-optimize-surgical-correction-for-flatfoot-deformity
#12
Brian A Smith, Robert S Adelaar, Jennifer S Wayne
Several surgically corrective procedures are considered to treat Adult Acquired Flatfoot Deformity (AAFD) patients, relieve pain, and restore function. Procedure selection is based on best practices and surgeon preference. Recent research created patient specific models of AAFD to explore their predictive capabilities and examine effectiveness of the surgical procedure used to treat the deformity. The models' behavior was governed solely by patient bodyweight, soft tissue constraints, muscle loading, and joint contact without the assumption of idealized joints...
July 2017: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
https://www.readbyqxmd.com/read/27137795/correlation-of-talar-anatomy-and-subtalar-joint-alignment-on-weightbearing-computed-tomography-with-radiographic-flatfoot-parameters
#13
Elizabeth A Cody, Emilie R Williamson, Jayme C Burket, Jonathan T Deland, Scott J Ellis
BACKGROUND: Underlying bony deformity may be related to development of adult-acquired flatfoot deformity (AAFD). Multiplanar weightbearing (MP-WB) computed tomography can be used to identify subtalar deformity which may contribute to valgus hindfoot alignment. On coronal MP-WB images, 2 angles reliably evaluate the subtalar joint axis: the angle between the inferior facet of the talus and the horizontal (inftal-hor) and the angle between the inferior and superior facets of the talus (inftal-suptal)...
August 2016: Foot & Ankle International
https://www.readbyqxmd.com/read/26874830/subtalar-arthroereisis-implant-removal-in-adults-a-prospective-study-of-100-patients
#14
Amol Saxena, Alessio Giai Via, Nicola Maffulli, Haywan Chiu
Subtalar joint arthroereisis (STA) can be used in the management of adult acquired flatfoot deformity (AAFD), including posterior tibial tendon dysfunction. The procedure is quick and normally causes little morbidity; however, the implant used for STA often needs to be removed because of sinus tarsi pain. The present study evaluated the rate and risk factors for removal of the implant used for STA in adults treated for AAFD/posterior tibial tendon dysfunction, including patient age, implant size, and the use of endoscopic gastrocnemius recession...
May 2016: Journal of Foot and Ankle Surgery: Official Publication of the American College of Foot and Ankle Surgeons
https://www.readbyqxmd.com/read/26564733/surgery-for-adult-acquired-flatfoot-due-to-posterior-tibial-tendon-dysfunction-reduces-pain-improves-function-and-health-related-quality-of-life
#15
M C Cöster, B E Rosengren, A Bremander, M K Karlsson
BACKGROUND: Patients with adult acquired flatfoot deformity (AAFD) due to posterior tibial tendon dysfunction (PTTD) may require surgery but few reports have evaluated the outcome. METHODS: We evaluated 21 patients with a median age of 60 (range 37-72) years who underwent different surgical reconstructions due to stage II AAFD before and 6 and 24 months after surgery by the validated Self-Reported Foot and Ankle Score (SEFAS), Short Form 36 (SF-36) and Euroquol 5 Dimensions (EQ-5D)...
December 2015: Foot and Ankle Surgery: Official Journal of the European Society of Foot and Ankle Surgeons
https://www.readbyqxmd.com/read/26542162/effect-of-obesity-on-clinical-and-radiographic-outcomes-following-reconstruction-of-stage-ii-adult-acquired-flatfoot-deformity
#16
COMPARATIVE STUDY
Dylan S Soukup, Aoife MacMahon, Jayme C Burket, Jeanne M Yu, Scott J Ellis, Jonathan T Deland
BACKGROUND: Obesity is a known risk factor for the development of adult acquired flatfoot deformity (AAFD), but obesity's effects on outcomes following AAFD reconstruction are unknown. We hypothesized that obesity would negatively impact outcomes following joint-preserving stage II AAFD reconstruction. METHODS: This retrospective study compared the outcomes of normal-weight (18.5 kg/m(2) ≤ BMI < 25 kg/m(2)), overweight (25 kg/m(2) ≤ BMI < 30 kg/m(2)), and obese (BMI ≥ 30 kg/m(2)) patients after AAFD reconstruction...
March 2016: Foot & Ankle International
https://www.readbyqxmd.com/read/26351158/results-of-arthroscopic-subtalar-arthrodesis-for-adult-acquired-flatfoot-deformity-vs-posttraumatic-arthritis
#17
COMPARATIVE STUDY
Jesús Vilá y Rico, Verónica Jiménez Díaz, Beatriz Bravo Giménez, María Ángeles Mellado Romero, Cristina Ojeda Thies
BACKGROUND: The goal of this study was to compare results with arthroscopic posterior subtalar arthrodesis between patients treated for adult-acquired flatfoot deformity (AAFD) due to posterior tibial tendon dysfunction and patients with posttraumatic subtalar arthritis. METHODS: Retrospective case series of 61 consecutive patients (group 1: posttraumatic arthritis, n = 37; group 2: AAFD, n = 24) averaging 49 years of age (range, 21-72 years) undergoing posterior arthroscopic subtalar arthrodesis via 1 or 2 percutaneous 6...
February 2016: Foot & Ankle International
https://www.readbyqxmd.com/read/25948692/optimal-position-of-the-heel-following-reconstruction-of-the-stage-ii-adult-acquired-flatfoot-deformity
#18
Matthew S Conti, Scott J Ellis, Jeremy Y Chan, Huong T Do, Jonathan T Deland
BACKGROUND: While previous work has demonstrated a linear relationship between the amount of medializing calcaneal osteotomy (MCO) and the change in radiographic hindfoot alignment following reconstruction, an ideal postoperative hindfoot alignment has yet to be reported. The aim of this study was to identify an optimal postoperative hindfoot alignment by correlating radiographic alignment with patient outcomes. METHODS: Fifty-five feet in 55 patients underwent flatfoot reconstruction for stage II adult-acquired flatfoot deformity (AAFD) by 2 fellowship-trained foot and ankle orthopedic surgeons...
August 2015: Foot & Ankle International
https://www.readbyqxmd.com/read/25785467/equivalent-pain-relief-with-and-without-resection-of-the-posterior-tibial-tendon-in-adult-flatfoot-reconstruction
#19
COMPARATIVE STUDY
Constantine A Demetracopoulos, James K DeOrio, Mark E Easley, James A Nunley
Transfer of the flexor digitorum longus (FDL) is indicated to compensate for the loss of posterior tibial tendon (PTT) function in the treatment of adult acquired flatfoot deformity (AAFD). The aim of this study was to determine the effect of PTT resection on pain relief following surgical treatment of stage II AAFD. A retrospective review of patients who underwent surgical treatment for stage II AAFD was performed. Patients were divided into two groups based on whether the degenerated PTT was resected or left in situ...
2014: Journal of Surgical Orthopaedic Advances
https://www.readbyqxmd.com/read/25589542/correlation-of-postoperative-midfoot-position-with-outcome-following-reconstruction-of-the-stage-ii-adult-acquired-flatfoot-deformity
#20
Matthew S Conti, Jeremy Y Chan, Huong T Do, Scott J Ellis, Jonathan T Deland
BACKGROUND: No studies investigating the effect of the midfoot (talonavicular joint) position on clinical outcomes following flatfoot reconstruction have been performed. The purpose of our study was to determine whether a postoperative abducted or adducted forefoot alignment, as determined from anteroposterior (AP) radiographs, was associated with a difference in outcomes using the Foot and Ankle Outcome Score (FAOS). METHODS: Midfoot abduction was defined on postoperative AP radiographs, evaluated at a mean of 1...
March 2015: Foot & Ankle International
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