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Wakker AM, Verhofstad MHJ, Visser JJ, Van Vledder MG, Van Walsum T. Talus-derived reference coordinate system for 3D calcaneal assessment: A novel approach to improve morphological measurements. J Orthop Res 2024. [PMID: 38711242 DOI: 10.1002/jor.25868] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Revised: 03/13/2024] [Accepted: 04/19/2024] [Indexed: 05/08/2024]
Abstract
In 3D-analysis of the calcaneus, a consistent coordinate system aligned with the original anatomical directions is crucial for pre- and postoperative analysis. This importance stems from the calcaneus's key role in weight-bearing and biomechanical alignment. However, defining a reliable coordinate system based solely on fractured or surgically reconstructed calcanei presents significant challenges. Given its anatomical prominence and consistent orientation, the talus offers a potential solution to this challenge. Our work explores the feasibility of talus-derived coordinate systems for 3D-modeling of the calcaneus across its various conditions. Four methods were tested on nonfractured, fractured and surgically reconstructed calcanei, utilizing Principal Component Analysis, anatomical landmarks, bounding box, and an atlas-based approach. The methods were compared with a self-defined calcaneus reference coordinate system. Additionally, the impact of deviation of the coordinate system on morphological measurements was investigated. Among methods for constructing nonfractured calcanei coordinate systems, the atlas-based method displayed the lowest Root Mean Square value in comparison with the reference coordinate system. For morphological measures like Böhler's Angle and the Critical angle of Gissane, the atlas talus-based system closely aligned with ground truth, yielding differences of 0.6° and 1.2°, respectively, compared to larger deviations seen in other talus-based coordinate systems. In conclusion, all tested methods were feasible for creating a talus derived coordinate system. A talus derived coordinate system showed potential, offering benefits for morphological measurements and clinical scenarios involving fractured and surgically reconstructed calcanei. Further research is recommended to assess the impact of these coordinate systems on surgical planning and outcomes.
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Affiliation(s)
- Alexander M Wakker
- Trauma Research Unit, Department of Surgery, Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands
- Department of Radiology & Nuclear Medicine, Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands
| | - Michael H J Verhofstad
- Trauma Research Unit, Department of Surgery, Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands
| | - Jacob J Visser
- Department of Radiology & Nuclear Medicine, Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands
| | - Mark G Van Vledder
- Trauma Research Unit, Department of Surgery, Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands
| | - Theo Van Walsum
- Biomedical Imaging Group Rotterdam, Department of Radiology & Nuclear Medicine, Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands
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Liu T, Dimitrov A, Jomha N, Adeeb S, El-Rich M, Westover L. Development and validation of a novel ankle joint musculoskeletal model. Med Biol Eng Comput 2024; 62:1395-1407. [PMID: 38194185 DOI: 10.1007/s11517-023-03010-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Accepted: 12/22/2023] [Indexed: 01/10/2024]
Abstract
An improved understanding of contact mechanics in the ankle joint is paramount for implant design and ankle disorder treatment. However, existing models generally simplify the ankle joint as a revolute joint that cannot predict contact characteristics. The current study aimed to develop a novel musculoskeletal ankle joint model that can predict contact in the ankle joint, together with muscle and joint reaction forces. We modelled the ankle joint as a multi-axial joint and simulated contact mechanics between the tibia, fibula and talus bones in OpenSim. The developed model was validated with results from experimental studies through passive stiffness and contact. Through this, we found a similar ankle moment-rotation relationship and contact pattern between our study and experimental studies. Next, the musculoskeletal ankle joint model was incorporated into a lower body model to simulate gait. The ankle joint contact characteristics, kinematics, and muscle forces were predicted and compared to the literature. Our results revealed a comparable peak contact force and the same muscle activation patterns in four major muscles. Good agreement was also found in ankle dorsi/plantar-flexion and inversion/eversion. Thus, the developed model was able to accurately model the ankle joint and can be used to predict contact characteristics in gait.
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Affiliation(s)
- Tao Liu
- Faculty of Medicine and Dentistry, University of Alberta, Edmonton, AB, Canada.
| | - Andrea Dimitrov
- School of Medicine, Nursing & Health Sciences, University of Galway, Galway, Ireland
| | - Nadr Jomha
- Faculty of Medicine and Dentistry, University of Alberta, Edmonton, AB, Canada
| | - Samer Adeeb
- Faculty of Civil and Environmental Engineering, University of Alberta, Edmonton, AB, Canada
| | - Marwan El-Rich
- Department of Mechanical Engineering, Khalifa University, Abu Dhabi, United Arab Emirates
| | - Lindsey Westover
- Department of Mechanical Engineering, University of Alberta, Edmonton, AB, Canada
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Wu S, Liu S, Huang M, Liu Z, Shi J, Ling M. Different radius of curvature at the talus trochlea from northern Chinese population measured using 3D model. J Orthop Surg Res 2024; 19:266. [PMID: 38671519 PMCID: PMC11055296 DOI: 10.1186/s13018-024-04751-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/05/2024] [Accepted: 04/19/2024] [Indexed: 04/28/2024] Open
Abstract
BACKGROUND To analyze the curvature characteristics of the talus trochlea in people from northern China in different sex and age groups. METHODS Computed tomography scanning data of talus from 61 specimens were collected and constructed as a three-dimensional model by Materialise's Interactive Medical Image Control System(MIMICS) software, anteromedial(AM), posteromedial(PM), anterolateral(AL), and posterolateral(PL) edge, anterior edge of medial trochlea, posterior edge of medial trochlea and anterior edge of lateral trochlea were defined according to the anatomical landmarks on trochlear surface. The curvature radii for different areas were measured using the fitting radius and measure module. RESULTS There were significant differences among the talus curvatures in the six areas (F = 54.905, P = 0.000), and more trends in the analytical results were as follows: PM > PL > MP > AL > MA > AM. The average PL radius from specimens aged > 38 years old was larger than that from specimens aged < = 38 years (t=-2.303, P = 0.038). The talus curvature of the AM for males was significantly larger than that for females (t = 4.25, P = 0.000), and the curvature of the AL for males was larger than that for females (t = 2.629, P = 0.010). For observers aged < = 38 years, the AM curvature of the right talus in the male group was significantly larger than that in the female group (P < 0.01). In age < = 38years group, the MA curvature of right talus in male was significantly larger than in female group(P < 0.01), fitting radius of talus for male (21.90 ± 1.97 mm) was significantly greater than female of this(19.57 ± 1.26 mm)(t = 6.894, P = 000). The average radius of the talus in the male population was larger than that in the female population. CONCLUSION There was no significant relationship between age and talus curvature for males and females. The radius of curvature in the posterior area was significantly larger than that in the anterior area. We recommend that this characteristic of the talus trochlea should be considered when designing the talus component in total ankle replacement (TAR).
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Affiliation(s)
- Shixun Wu
- Department of Orthopedics Surgery, Shaanxi Provincial People's Hospital, No. 256 Youyi West Road, Xi'an, Shaanxi, 710068, China
- Key Laboratory of Bone Joint Disease Basic and Clinical Translation of Shaanxi Province, Xi'an, Shaanxi, 710068, China
| | - Shizhang Liu
- Department of Orthopedics Surgery, Shaanxi Provincial People's Hospital, No. 256 Youyi West Road, Xi'an, Shaanxi, 710068, China
- Key Laboratory of Bone Joint Disease Basic and Clinical Translation of Shaanxi Province, Xi'an, Shaanxi, 710068, China
| | - Minggang Huang
- Department of CT, Shaanxi Provincial People's Hospital, Xi'an, Shaanxi, 710068, China
| | - Zhe Liu
- Department of CT, Shaanxi Provincial People's Hospital, Xi'an, Shaanxi, 710068, China
| | - Jiyuan Shi
- Department of Orthopedics Surgery, Shaanxi Provincial People's Hospital, No. 256 Youyi West Road, Xi'an, Shaanxi, 710068, China
- Key Laboratory of Bone Joint Disease Basic and Clinical Translation of Shaanxi Province, Xi'an, Shaanxi, 710068, China
| | - Ming Ling
- Department of Orthopedics Surgery, Shaanxi Provincial People's Hospital, No. 256 Youyi West Road, Xi'an, Shaanxi, 710068, China.
- Key Laboratory of Bone Joint Disease Basic and Clinical Translation of Shaanxi Province, Xi'an, Shaanxi, 710068, China.
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Fojtík P, Kašper Š, Bartoníček J, Tuček M, Naňka O. Lateral malleolar crest and its clinical importance. Surg Radiol Anat 2023; 45:255-262. [PMID: 36653594 DOI: 10.1007/s00276-023-03080-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Accepted: 01/06/2023] [Indexed: 01/19/2023]
Abstract
PURPOSE During study of anatomy of a fractured posterior malleolus of the ankle on CT scans, the authors noticed a prominent crest on the lateral malleolus, which they termed the lateral malleolar crest (LMC). As, in their view, LMC is a clinically important structure which was only briefly mentioned by a few authors without an official term, they focused on the anatomy of this structure. MATERIALS AND METHODS A total of 352 dry fibulae were analyzed and the following parameters recorded: (F) length of the fibula, (LMC) total length of LMC, (A) length of the part of the examined crest from the superior border of the articular facet of the lateral malleolus (AFLM) to its most proximal intersection with the midline of the fibula, (B) height of the medial triangular rough surface, and (A/F) A/F ratio. RESULTS The crest was observed in all specimens. (F) was 346.5 ± 26 mm (95% confidence interval [CI] 344-349), (LMC) was 85.4 ± 11.6 mm (95% CI 84.2-86.6), (A/F) was 25% ± 3% (95% CI 24.7-25.3) in the whole group. (A) was 25.9 ± 6.5 mm (95% CI 24.8-26.8) in the whole group, (B) was 34.9 ± 4.7 mm (95% CI 34.3-35.5) in the whole group, 36 ± 6.1 mm (95% CI 35.1-36.9). CONCLUSION LMC is an important structure on the lateral malleolus. The knowledge of its anatomy is essential for placement of syndesmotic screws or/and the fibular plate.
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Affiliation(s)
- Petr Fojtík
- Institute of Anatomy, 1st Faculty of Medicine, Charles University, U Nemocnice 3, Prague 2, Prague, Czech Republic.,Department of Orthopedics, 1st Faculty of Medicine, Charles University, The Central Military Hospital, U Vojenské Nemocnice 1200, Prague 6, Prague, Czech Republic
| | - Štěpán Kašper
- Department of Orthopedics, 1st Faculty of Medicine, Charles University, The Central Military Hospital, U Vojenské Nemocnice 1200, Prague 6, Prague, Czech Republic
| | - Jan Bartoníček
- Institute of Anatomy, 1st Faculty of Medicine, Charles University, U Nemocnice 3, Prague 2, Prague, Czech Republic.,Department of Orthopedics, 1st Faculty of Medicine, Charles University, The Central Military Hospital, U Vojenské Nemocnice 1200, Prague 6, Prague, Czech Republic
| | - Michal Tuček
- Department of Orthopedics, 1st Faculty of Medicine, Charles University, The Central Military Hospital, U Vojenské Nemocnice 1200, Prague 6, Prague, Czech Republic
| | - Ondřej Naňka
- Institute of Anatomy, 1st Faculty of Medicine, Charles University, U Nemocnice 3, Prague 2, Prague, Czech Republic.
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Wu SX, Liu SZ, Ling M, Che YH, Tian X, Duan XL, Yi Z. A Novel Method for Preoperative Positioning of Total Ankle Replacement Using 3D Digital Model. Orthop Surg 2022; 14:1378-1384. [PMID: 35656705 PMCID: PMC9251280 DOI: 10.1111/os.13287] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/21/2021] [Revised: 03/18/2022] [Accepted: 03/22/2022] [Indexed: 11/28/2022] Open
Abstract
OBJECTIVE To establish a digital model of the ankle joint through 3D imaging technology and explore the preoperative placement of ankle replacement prostheses. METHODS Computed tomography images of intact ankle joints from 54 cases in the outpatient and inpatient departments of our hospital were collected; according to the INBONE® total ankle system surgery process, the surgery model and surgical osteotomy were finished using MIMICS based on computer simulation method. The shortest distance was measured between the center point and the anterior, posterior, medial, and lateral, respectively, to ensure the precise position of the ankle replacement prosthesis by digital simulation surgery. The relationship between the two variables was analyzed by bivariate correlation analysis. RESULTS The dataset of this study included 48 cases of the sub-data set (26 males and 22 females) and included 27 cases of left ankle and 21 cases of right ankle. The average medial malleolar angle was 18.67°± 2.87°, the average amount of bone resection was 12.13 ± 1.86 cm3 , the mid-anterior distance was 1.72 ± 0.19 cm, the mid-posterior distance was 2.00 ± 0.19 cm, the ratio of mid-anterior to mid-posterior was 0.87, the mid-medial distance was 1.26 ± 0.17 cm, the mid-lateral distance was 1.19 ± 0.16 cm, and the ratio of mid-medial to mid-lateral was 1.06. After osteotomy, the anteroposterior diameter was 3.73 ± 0.32 cm, the transverse diameter was 2.46 ± 0.27 cm, and the ratio of anteroposterior diameter to transverse diameter was 1.53. In the bottom view, the shape after osteotomy is rectangular. The mid-anterior distance was strongly negatively correlated with age, the mid-anterior distance and the amount of bone resection, the mid-medial distance and the amount of bone resection, the mid-lateral distance and the amount of bone resection, the mid-lateral distance and the anteroposterior diameter, the anteroposterior diameter and the transverse diameter were all strongly positively correlated. CONCLUSION The projection point of the lower tibia centerline on the tibial horizontal osteotomy surface is located at a position slightly anterior to the midpoint of the transverse diameter after ankle arthroplasty. The rational positioning of the total ankle replacement is located at both a position slightly anterior to the midpoint of the transverse diameter and midpoint of the anteroposterior diameter, which can be used as a reference method before total ankle arthroplasty surgery.
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Affiliation(s)
- Shi-Xun Wu
- Department of Orthopedics Surgery, Shaanxi Provincial People's Hospital, Xi'an Jiaotong University, Xi'an, China.,The College of Life Sciences and Medicine, Northwest University, xi'an, China
| | - Shi-Zhang Liu
- Department of Orthopedics Surgery, Shaanxi Provincial People's Hospital, Xi'an Jiaotong University, Xi'an, China
| | - Ming Ling
- Department of Orthopedics Surgery, Shaanxi Provincial People's Hospital, Xi'an Jiaotong University, Xi'an, China
| | - Yan-Hui Che
- First Middle School of Xi'an City, Xi'an, China
| | - Xin Tian
- Department of Orthopedics Surgery, Shaanxi Provincial People's Hospital, Xi'an Jiaotong University, Xi'an, China
| | - Xiang-Long Duan
- The College of Life Sciences and Medicine, Northwest University, xi'an, China.,Second Department of General Surgery, Shaanxi Provincial People's Hospital, Xi'an Jiaotong University, Xi'an, China
| | - Zhi Yi
- Department of Orthopedics Surgery, Shaanxi Provincial People's Hospital, Xi'an Jiaotong University, Xi'an, China
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6
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Li SJ, Shi BC, Liu CL, Liu YB. Finite element analysis of the kinematic coupling effect of the joints around talus when Ponseti manipulation. BMC Musculoskelet Disord 2021; 22:682. [PMID: 34384390 PMCID: PMC8361653 DOI: 10.1186/s12891-021-04575-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Accepted: 08/04/2021] [Indexed: 12/03/2022] Open
Abstract
Background Little information was obtained from the published papers about the kinematic coupling effect between tarsal bones during Ponseti manipulation. The aim was to explore the kinematic coupling effect of the joints around talus, to investigate the kinematic rhythm and coupling relationship of tarsal joints; to clarify the pulling effect on medial ligament of the ankle during the process of Ponseti manipulation. Methods The model of foot and ankle was reconstructed from the Chinese digital human girl No.1 (CDH-G1) image database. Finite element analysis was applied to explore the kinematic coupling effect of the joints around talus. The distal tibia and fibula bone and the head of talus were fixed in all six degrees of freedom; outward pressure was added to the first metatarsal head to simulate the Ponseti manipulation. Kinematic coupling of each tarsal joint was investigated using the method of whole model splitting, and medial ligament pulling of the ankle was studied by designing the model of medial ligament deletion during the Ponseti manipulation. Results All the tarsal joints produced significant displacement in kinematic coupling effect, and the talus itself produced great displacement in the joint of ankle. Quantitative analysis revealed that the maximum displacement was found in the joints of talonavicular (12.01mm), cuneonavicular (10.50mm), calcaneocuboid (7.97mm), and subtalar(6.99mm).The kinematic coupling rhythm between talus and navicular, talus and calcaneus, calcaneus and cuboid, navicular and cuneiform 1 were 1:12, 1:7, 1:2 and 1:1.6. The results of ligaments pulling showed that the maximum displacement was presented in the ligaments of tibionavicular (mean 27.99mm), talonavicular (21.03mm), and calcaneonavicular (19.18 mm). Conclusions All the tarsal joints around talus were involved in the process of Ponseti manipulation, and the strongest kinematic coupling effect was found in the joints of talonavicular, subtalar, calcaneocuboid, and cuneonavicular. The ligaments of tibionavicular, talonavicular, and calcaneonavicular were stretched greatly. It was suggested that the method of Ponseti management was a complex deformity correction processes involved all the tarsal joints. The present study contributed to better understanding the principle of Ponseti manipulation and the pathoanatomy of clubfoot. Also, the importance of cuneonavicular joint should be stressed in clinical practice.
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Affiliation(s)
- Song-Jian Li
- Orthopedics Center, Department of Orthopedics and Traumatology, Zhujiang Hospital, Southern Medical University, No.253. Gongye Middle Avenue, Haizhu District, 510280, Guangzhou, Guangdong, China
| | - Ben-Chao Shi
- Orthopedics Center, Department of Spinal Surgery, Zhujiang Hospital, Southern Medical University, No.253. Gongye Middle Avenue, Haizhu District, 510280, Guangzhou, Guangdong, China
| | - Cheng-Long Liu
- Orthopedics Center, Department of Orthopedics and Traumatology, Zhujiang Hospital, Southern Medical University, No.253. Gongye Middle Avenue, Haizhu District, 510280, Guangzhou, Guangdong, China
| | - Yu-Bin Liu
- Orthopedics Center, Department of Orthopedics and Traumatology, Zhujiang Hospital, Southern Medical University, No.253. Gongye Middle Avenue, Haizhu District, 510280, Guangzhou, Guangdong, China. .,Orthopedics Center, Department of Spinal Surgery, Zhujiang Hospital, Southern Medical University, No.253. Gongye Middle Avenue, Haizhu District, 510280, Guangzhou, Guangdong, China.
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7
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Lenz AL, Krähenbühl N, Peterson AC, Lisonbee RJ, Hintermann B, Saltzman CL, Barg A, Anderson AE. Statistical shape modeling of the talocrural joint using a hybrid multi-articulation joint approach. Sci Rep 2021; 11:7314. [PMID: 33795729 PMCID: PMC8016855 DOI: 10.1038/s41598-021-86567-7] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Accepted: 03/15/2021] [Indexed: 01/16/2023] Open
Abstract
Historically, conventional radiographs have been the primary tool to morphometrically evaluate the talocrural joint, which is comprised of the distal tibia, distal fibula, and proximal talus. More recently, high-resolution volumetric imaging, including computed tomography (CT), has enabled the generation of three-dimensional (3D) reconstructions of the talocrural joint. Weightbearing cone-beam CT (WBCT) technology provides additional benefit to assess 3D spatial relationships and joint congruency while the patient is load bearing. In this study we applied statistical shape modeling, a computational morphometrics technique, to objectively quantify anatomical variation, joint level coverage, joint space distance, and congruency at the talocrural joint. Shape models were developed from segmented WBCT images and included the distal tibia, distal fibula, and full talus. Key anatomical variation across subjects included the fibular notch on the tibia, talar trochlea sagittal plane rate of curvature, tibial plafond curvature with medial malleolus prominence, and changes in the fibular shaft diameter. The shape analysis also revealed a highly congruent talocrural joint with minimal inter-individual morphometric differences at the articular regions. These data are helpful to improve understanding of ankle joint pathologies and to guide refinement of operative treatments.
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Affiliation(s)
- Amy L Lenz
- Department of Orthopaedics, University of Utah, Salt Lake City, 84108, USA
| | - Nicola Krähenbühl
- Department of Orthopaedics, Kantonsspital Baselland, 4410, Liestal, Switzerland
| | - Andrew C Peterson
- Department of Orthopaedics, University of Utah, Salt Lake City, 84108, USA
| | - Rich J Lisonbee
- Department of Orthopaedics, University of Utah, Salt Lake City, 84108, USA
| | - Beat Hintermann
- Department of Orthopaedics, Kantonsspital Baselland, 4410, Liestal, Switzerland
| | - Charles L Saltzman
- Department of Orthopaedics, University of Utah, Salt Lake City, 84108, USA
| | - Alexej Barg
- Department of Orthopaedics, University of Utah, Salt Lake City, 84108, USA.,Department of Orthopaedics, Trauma and Reconstructive Surgery, University Medical Center Hamburg-Eppendorf, 20251, Hamburg, Germany
| | - Andrew E Anderson
- Department of Orthopaedics, University of Utah, Salt Lake City, 84108, USA.
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Lenz AL, Strobel MA, Anderson AM, Fial AV, MacWilliams BA, Krzak JJ, Kruger KM. Assignment of local coordinate systems and methods to calculate tibiotalar and subtalar kinematics: A systematic review. J Biomech 2021; 120:110344. [PMID: 33744722 DOI: 10.1016/j.jbiomech.2021.110344] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Revised: 02/18/2021] [Accepted: 02/22/2021] [Indexed: 12/14/2022]
Abstract
The introduction of biplane fluoroscopy has created the ability to evaluate in vivo motion, enabling six degree-of-freedom measurement of the tibiotalar and subtalar joints. Although the International Society of Biomechanics defines a standard method of assigning local coordinate systems for the ankle joint complex, standards for the tibiotalar and subtalar joints are lacking. The objective of this systematic review was to summarize and appraise the existing literature that (1) defined coordinate systems for the tibia, talus, and/or calcaneus or (2) assigned kinematic definitions for the tibiotalar and/or subtalar joints. A systematic literature search was developed with search results limited to English Language from 2006 through 2020. Articles were screened by two independent reviewers based on title and abstract. Methodological quality was evaluated using a modified assessment tool. Following screening, 52 articles were identified as having met inclusion criteria. Methodological assessment of these articles varied in quality from 61 to 97. Included articles adopted primary methods for defining coordinate systems that included: (1) anatomical coordinate system (ACS) based on individual bone landmarks and/or geometric shapes, (2) orthogonal principal axes, and (3) interactive closest point (ICP) registration. Common methods for calculating kinematics included: (1) joint coordinate system (JCS) to calculate rotation and translation, (2) Cardan/Euler sequences, and (3) inclination and deviation angles for helical angles. The methods each have strengths and weaknesses. This summarized knowledge should provide the basis for the foot and ankle biomechanics community to create an accepted standard for calculating and reporting tibiotalar and subtalar kinematics.
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Affiliation(s)
- Amy L Lenz
- Department of Orthopaedics, University of Utah, 590 Wakara Way, Salt Lake City, UT 84108, United States
| | - Marisa A Strobel
- Department of Biomedical Engineering, Marquette University, 1515 W Wisconsin Ave, Milwaukee, WI 53233, United States
| | - Abigail M Anderson
- Department of Biomedical Engineering, Marquette University, 1515 W Wisconsin Ave, Milwaukee, WI 53233, United States
| | - Alissa V Fial
- Research & Instruction Services, Marquette University, 1355 W. Wisconsin Ave, Milwaukee, WI 53201, United States
| | - Bruce A MacWilliams
- Department of Orthopaedics, University of Utah, 590 Wakara Way, Salt Lake City, UT 84108, United States; Motion Analysis Center, Shriners Hospitals for Children-Salt Lake City, 1275 Fairfax Rd., Salt Lake City, UT 84103, United States
| | - Joseph J Krzak
- Physical Therapy Program, Midwestern University, 555 31st St., Downers Grove, IL 60515, United States; Motion Analysis Center, Shriners Hospitals for Children-Chicago, 2211 N Oak Park Ave, Chicago, IL 60707, United States
| | - Karen M Kruger
- Department of Biomedical Engineering, Marquette University, 1515 W Wisconsin Ave, Milwaukee, WI 53233, United States; Motion Analysis Center, Shriners Hospitals for Children-Chicago, 2211 N Oak Park Ave, Chicago, IL 60707, United States.
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9
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Zohair M, Moyer K, Eaves-Rathert J, Meng C, Waugh J, Pint CL. Continuous Energy Harvesting and Motion Sensing from Flexible Electrochemical Nanogenerators: Toward Smart and Multifunctional Textiles. ACS NANO 2020; 14:2308-2315. [PMID: 31999425 DOI: 10.1021/acsnano.9b09445] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
Here, we demonstrate the utilization of biocompatible Prussian blue (PB) active coatings onto polyester-carbon nanotube (CNT) threads to enable a fiber-based platform for both power harvesting and continuous motion sensing. First, we show experimental evidence supporting that the mechanistic power generating mechanical-electrochemical coupling in an electrochemical generator (ECG) is best achieved with K-ion insertion, in contrast to the expected preference for Li-ion insertion for batteries. We then construct KPB fibers and demonstrate power generation in an ECG device up to 3.8 μW/cm2 at low frequencies relevant to human motion in either an aqueous or polymer gel electrolyte media. Further, by stitching these yarns into gloves or arm sleeves, our results show the continuous monitoring of finger or arm motion, respectively, during slow and repetitive human motion. Overall, our work demonstrates an ECG platform that overcomes the performance and integration barriers toward combined textile integration and human motion sensing while leveraging common materials and understanding extending from alkali metal-ion batteries.
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Affiliation(s)
- Murtaza Zohair
- Interdisciplinary Materials Science Program , Vanderbilt University , Nashville , Tennessee 37235 , United States
| | - Kathleen Moyer
- Interdisciplinary Materials Science Program , Vanderbilt University , Nashville , Tennessee 37235 , United States
| | - Janna Eaves-Rathert
- Department of Mechanical Engineering , Vanderbilt University , Nashville , Tennessee 37235 , United States
| | - Chuanzhe Meng
- Department of Mechanical Engineering , Vanderbilt University , Nashville , Tennessee 37235 , United States
| | - John Waugh
- Interdisciplinary Materials Science Program , Vanderbilt University , Nashville , Tennessee 37235 , United States
| | - Cary L Pint
- Department of Mechanical Engineering , Iowa State University , Ames , Iowa 50011 , United States
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