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Mania S, Beeler S, Wirth S, Viehöfer A. Talocalcaneal Ligament Reconstruction Kinematic Simulation for Progressive Collapsing Foot Deformity. Foot Ankle Int 2024; 45:166-174. [PMID: 38083852 PMCID: PMC10860361 DOI: 10.1177/10711007231213361] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/13/2024]
Abstract
BACKGROUND In progressive collapsing foot deformity (PCFD), an internal and plantar rotation of the talus relative to the calcaneus may result in painful peritalar subluxation. Medial soft tissue procedures (eg, spring ligament repair) aim to correct the talar position via the navicular bone if bony correction alone is not sufficient. The effect of the medial soft tissue reconstruction on the talar reposition remains unclear. We hypothesized that a subtalar talocalcaneal ligament reconstruction might be favorable in PCFD to correct talar internal malposition directly. This pilot study aims to evaluate the anatomical feasibility and kinematic behavior of a subtalar ligament reconstruction in PCFD. METHODS Three-dimensional surface model from 10 healthy ankles were produced. A total of 1089 different potential ligament courses were evaluated in a standardized manner. A motion of inversion/eversion and talar internal/external in relation to the calcaneus were simulated and the ligament strain, expressed as a positive length variation, for each ligament was analyzed. The optimal combination for the ligament reconstruction with increased length in internal rotation of the talus, isometric kinematic behavior in inversion/eversion, and extraarticular insertion on talus and calcaneus was selected. RESULTS A laterodistal orientation of the talar insertion point in respect to the subtalar joint axis and laterodistal deviation of the calcaneal insertion point presents the highest ligament lengthening in internal talar rotation (+0.56 mm [3.8% of total length]) and presented a near-isometric performance in inversion/eversion (+0.01 to -0.01 mm [0.1% of total length]). CONCLUSION This kinematic model shows that a ligament reconstruction in the subtalar space presents a pattern of length variation that may stabilize the internal talar rotation without impeding the physiological subtalar motion. CLINICAL RELEVANCE This study investigates the optimal location, feasibility, and kinematic behavior of a ligament reconstruction that could help stabilize peritalar subluxation in progressive collapsing foot deformity. [Formula: see text].
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Affiliation(s)
- Sylvano Mania
- Department of Orthopaedics, Balgrist University Hospital, University of Zürich, Zürich, Switzerland
| | - Silvan Beeler
- Department of Orthopaedics, Balgrist University Hospital, University of Zürich, Zürich, Switzerland
| | - Stephan Wirth
- Department of Orthopaedics, Balgrist University Hospital, University of Zürich, Zürich, Switzerland
| | - Arnd Viehöfer
- Department of Orthopaedics, Balgrist University Hospital, University of Zürich, Zürich, Switzerland
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Iglesias-Durán E, Guerra-Pinto F, Ojeda-Thies C, Vilá-Rico J. Reconstruction of the interosseous talocalcaneal ligament using allograft for subtalar joint stabilization is effective. Knee Surg Sports Traumatol Arthrosc 2023; 31:6080-6087. [PMID: 37955675 PMCID: PMC10719127 DOI: 10.1007/s00167-023-07622-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/26/2022] [Accepted: 10/02/2023] [Indexed: 11/14/2023]
Abstract
PURPOSE The aim of this study was to assess the biomechanical effects of subtalar ligament injury and reconstruction on stability of the subtalar joint in all three spatial planes. METHODS Fifteen fresh frozen cadaveric legs were used, with transfixed tibiotalar joints to isolate motion to the subtalar joint. An arthrometer fixed to the lateral aspect of the calcaneus measured angular displacement in all three spatial planes on the inversion and eversion stress tests. Stress manoeuvres were tested with the intact joint, and then repeated after sequentially sectioning the inferior extensor retinaculum (IER), cervical ligament (CL), interosseous talocalcaneal ligament (ITCL), arthroscopic graft reconstruction of the ITCL, and sectioning of the calcaneo-fibular ligament (CFL). RESULTS Sectioning the ITCL significantly increased angular displacement upon inversion and eversion in the coronal and sagittal planes. Reconstruction of the ITCL significantly improved angular stability against eversion in the axial and sagittal planes, and against inversion in the axial and coronal planes, at the zero time point after reconstruction. After sectioning the CFL, resistance to eversion decreased significantly in all three planes. CONCLUSION Progressive injury of ligamentous stabilisers, particularly the ITCL, led to increasing angular displacement of the subtalar joint measured with the inversion and eversion stress tests, used in clinical practice. Reconstruction of the ITCL using tendon graft significantly stabilised the subtalar joint in the axial and sagittal planes against eversion and in the axial and coronal planes against inversion, immediately after surgery.
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Affiliation(s)
- Elvira Iglesias-Durán
- Hospital Monográfico ASEPEYO, Calle Joaquín de Cardenas 2, Coslada, Madrid, Spain.
- Universidad Europea de Madrid, Madrid, Spain.
- Hospital Quirónsalud Ruber, Madrid, Spain.
| | - Francisco Guerra-Pinto
- Hospital Ortopédico de Sant'Ana, Parede, Portugal
- Hospital da Cruz Vermelha Portuguesa, Lisbon, Portugal
- Hospital da Luz Oeiras, Oeiras, Portugal
- NOVA Medical School, Lisbon, Portugal
| | | | - Jesús Vilá-Rico
- Hospital Quirónsalud Ruber, Madrid, Spain
- Hospital Universitario 12 de Octubre, Madrid, Spain
- Universidad Complutense de Madrid, Madrid, Spain
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Fernández-Marín MR, González-Martín D, Herrera-Pérez M, Paulano-Godino F, Vilá-Rico J, Tejero S. Increased subtalar rotational motion in patients with symptomatic ankle instability under load and stress conditions. Knee Surg Sports Traumatol Arthrosc 2023; 31:5214-5221. [PMID: 37770749 DOI: 10.1007/s00167-023-07553-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Accepted: 08/23/2023] [Indexed: 09/30/2023]
Abstract
PURPOSE Differentiating subtalar and ankle instability in the clinical setting is challenging. This study aims to analyze the rotational laxity of the subtalar joint bilaterally in patients with asymptomatic and symptomatic ankle instability under simulated load and stress-induced position of the subtalar joint. METHODS A case-control study was conducted using an adjustable load device (ALD). Patients with chronic ankle instability and healthy volunteers were included. Each subject underwent a CT scan under mechanical stress and simulated weight-bearing conditions, maintaining maximum eversion and inversion hindfoot positions. The images were obtained in a single model, allowing calculations of the motion vector as well as the helical axis. The helical axis was defined by a rotation angle and a translation distance. RESULTS A total of 72 feet were included in the study. Thirty-one patients with unilateral symptoms and five healthy controls were selected, defining two groups: symptomatic (n = 31) and asymptomatic (n = 41). An absolute difference of 4.6º (95%CI 2-11.1) rotation angle was found on the helical axis of the symptomatic vs. asymptomatic group (p = 0.001). No significant differences were detected in the translation distance (n.s.) between the groups. Additionally, a significant positive correlation was found between the rotation angle and translation distance through the helical axis in the asymptomatic group (r = 0.397, p = 0.027). CONCLUSION Patients with chronic ankle instability suspected of having subtalar joint instability showed a wider subtalar range of laxity in terms of rotation about the helical axis. Furthermore, differences in kinematics between symptomatic and asymptomatic hindfeet was demonstrated when both feet were compared. LEVEL OF EVIDENCE III.
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Affiliation(s)
| | - David González-Martín
- Orthopedic Surgery and Traumatology Deparment, Origen, Grupo Recoletas, C. Paulina Harriet, 4-6, 47006, Valladolid, Spain.
- Universidad Europea Miguel de Cervantes, Valladolid, Spain.
| | - Mario Herrera-Pérez
- Universidad de La Laguna, La Laguna, Spain
- Foot and Ankle Unit, Orthopedic Surgery and Traumatology Department, Hospital Universitario de Canarias, La Laguna, Spain
| | | | - Jesús Vilá-Rico
- University Hospital 12 de Octubre, Madrid, Spain
- Universidad Complutense de Madrid, Madrid, Spain
| | - Sergio Tejero
- Head Foot Ankle Unit, University Hospital Virgen del Rocío, Sevilla, Spain
- University of Sevilla, Sevilla, Spain
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Kim J, Kim GL, Kim T, Cho J. Evaluation of chronic ankle instability and subtalar instability using the angle between the anterior talofibular ligament and calcaneofibular ligament. Knee Surg Sports Traumatol Arthrosc 2023; 31:4539-4545. [PMID: 37286900 DOI: 10.1007/s00167-023-07433-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Accepted: 04/20/2023] [Indexed: 06/09/2023]
Abstract
PURPOSE A series of studies have reported a change in the length or thickness of the anterior talofibular (ATFL) and calcaneofibular (CFL) ligaments in patients with chronic ankle instability. However, no study has examined the changes in the angle between the ATFL and CFL in patients diagnosed with chronic ankle instability. Therefore, this study analyzed the change in the angle between the ATFL and CFL in patients diagnosed with chronic ankle instability to confirm its relevance. METHODS This retrospective study included 60 patients who had undergone surgery for chronic ankle instability. Stress radiographs comprising the anterior drawer test, varus stress test, Broden's view stress test, and magnetic resonance imaging (MRI) were performed in all patients. The angle between the ATFL and CFL was measured by indicating the vector at the attachment site, as seen on the sagittal plane. Three groups were classified according to the angle between the two ligaments measured by MRI: group I when the angle was > 90°, Group II when the angle was 71-90°, and Group III when the angle was ≤ 70°. The accompanying injuries to the subtalar joint ligament were analyzed via MRI. RESULTS A comparison of the angles between the ATFL and CFL measured on MRI in Group I, Group II, and Group III with the angles measured in the operating room revealed a significant correlation. Broden's view stress test revealed a statistically significant difference among the three groups (p < 0.05). The accompanying subtalar joint ligament injuries differed significantly among the three groups (p < 0.05). CONCLUSION The ATFL-CFL angle in patients with ankle instability is smaller than the average angle in ordinary people. Therefore, the ATFL-CFL angle might be a reliable and representative measurement tool to assess chronic ankle instability, and subtalar joint instability should be considered if the ATFL-CFL angle is 70° or less. LEVEL OF EVIDENCE Level III.
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Affiliation(s)
- Jiyoun Kim
- Department of Orthopedic Surgery, Kosin University Gospel Hospital, Kosin University School of Medicine, Busan, Korea
| | - Gab Lae Kim
- Department of Orthopedic Surgery, Kang-Dong Sacred Heart Hospital, Hallym University School of Medicine, Seong-an Ro 150, Kang-dong Gu, Seoul, 05355, Korea.
| | - Taeho Kim
- Department of Orthopedic Surgery, Kang-Dong Sacred Heart Hospital, Hallym University School of Medicine, Seong-an Ro 150, Kang-dong Gu, Seoul, 05355, Korea
| | - Junghyun Cho
- Department of Orthopedic Surgery, Kang-Dong Sacred Heart Hospital, Hallym University School of Medicine, Seong-an Ro 150, Kang-dong Gu, Seoul, 05355, Korea
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Kudo S, Aoyagi T, Kobayashi T, Koshino Y, Edama M. Ultrasound Imaging of Subtalar Joint Instability for Chronic Ankle Instability. Healthcare (Basel) 2023; 11:2227. [PMID: 37570468 PMCID: PMC10418656 DOI: 10.3390/healthcare11152227] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Revised: 08/03/2023] [Accepted: 08/04/2023] [Indexed: 08/13/2023] Open
Abstract
The purpose of this study was to develop the assessment of subtalar joint instability with chronic ankle instability (CAI) using ultrasonography. Forty-six patients with anterior talofibular ligament (ATFL) abnormalities and a history of ankle sprain were divided into CAI (21.2 ± 5.9 y/o, 7 males and 17 females) and asymptomatic groups (21.0 ± 7.4 y/o, 9 males and 12 females) on the basis of subjective ankle instability assessed using the CAIT and the Ankle Instability Instrument Tool (AIIT). Twenty-six age-matched feet participated in a control group (18.9 ± 7.0 y/o, 9 males and 17 females). Ultrasound measurements of the width of the posterior subtalar joint facet were obtained at rest and maximum ankle inversion (subtalar joint excursion; STJE). The differences in STJE among the three groups were assessed by one-way ANOVA. The relationship between STJE and subjective ankle instability was assessed using Spearman's correlation tests. The STJE value was significantly greater in the CAI group (2.3 ± 0.8 mm) than in the asymptomatic (1.0 ±0.4 mm) and control groups (0.8 ±0.2 mm) (p < 0.001, effect size: 0.64). STJE had significant negative correlations with CAIT (r = -0.71, p < 0.01), and significant positive correlations with AIIT (r = 0.74, p < 0.01). The cut-off value to distinguish between the CAI and asymptomatic groups was 1.7 mm using the ROC curve.
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Affiliation(s)
- Shintarou Kudo
- Department of Physical Therapy, Morinomiya University of Medical Sciences, Osaka 559-8611, Japan;
| | - Tsutomu Aoyagi
- Department of Physical Therapy, Morinomiya University of Medical Sciences, Osaka 559-8611, Japan;
- Department of the Rehabilitation, Oyamadai Orthopedics Clinic Tokyo Arthroscopy Center, Tokyo 158-0082, Japan
| | - Takumi Kobayashi
- Department of Rehabilitation, Hokkaido Chitose College of Rehabilitation, Chitose 066-0055, Japan;
| | - Yuta Koshino
- Faculty of Health Sciences, Hokkaido University, Sapporo 060-0812, Japan;
| | - Mutsuaki Edama
- Institute for Human Movement and Medical Sciences, Niigata University of Health and Welfare, Niigata 950-3102, Japan;
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Bell KL, King BW, Sangeorzan BJ. Acute and Chronic Subtalar Joint Instability: Does It Really Exist? Foot Ankle Clin 2023; 28:427-444. [PMID: 37137632 DOI: 10.1016/j.fcl.2022.12.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
Acute and chronic subtalar instability and commonly coexistent with other hindfoot pathology but can be difficult to diagnose. A high degree of clinical suspicion is required as most imaging modalities and clinical maneuvers are poor at detecting isolated subtalar instability. The initial treatment is similar to ankle instability, and a wide variety of operative interventions have been presented in the literature for persistent instability. Outcomes are variable and limited.
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Affiliation(s)
- Kerri Lynne Bell
- Orthopaedic Surgery, Henry Ford Health, 2799 West Grand Boulevard K12, Detroit, MI 48202, USA
| | - Brandon William King
- Orthopaedic Surgery, Henry Ford Health, 2799 West Grand Boulevard K12, Detroit, MI 48202, USA.
| | - Bruce J Sangeorzan
- Orthopaedic Surgery, Harborview Medical Center, University of Washington, Seattle, WA 98104, USA
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Gomes TM, Oliva XM, Viridiana Sanchez E, Soares S, Diaz T. Anatomy of the Ankle and Subtalar Joint Ligaments: What We Do Not Know About It? Foot Ankle Clin 2023; 28:201-216. [PMID: 37137619 DOI: 10.1016/j.fcl.2022.12.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
Understanding of the ankle and subtalar joint ligaments is essential to recognize and manage foot and ankle disorders. The stability of both joints relies on the integrity of its ligaments. The ankle joint is stabilized by the lateral and medial ligamentous complexes while the subtalar joint is stabilized by its extrinsic and intrinsic ligaments. Most injuries to these ligaments are linked with ankle sprains. Inversion or eversion mechanics affect the ligamentous complexes. A profound knowledge of the ligament's anatomy allows orthopedic surgeons to further understand anatomic or nonanatomic reconstructions.
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Affiliation(s)
- Tiago Mota Gomes
- Foot and Ankle Unit, Department of Anatomy and Human Embryology, Faculty of Medicine, University of Barcelona, Barcelona, Spain
| | - Xavier Martin Oliva
- Department of Orthopedics, Clinica Del Remei, Barcelona, Spain; Department of Anatomy and Human Embryology, Faculty of Medicine, University of Barcelona, Barcelona, Spain.
| | - Elsa Viridiana Sanchez
- Department of Anatomy and Human Embryology, Faculty of Medicine, University of Barcelona, Barcelona, Spain
| | - Sérgio Soares
- Foot and Ankle Unit, Department of Anatomy and Human Embryology, Faculty of Medicine, University of Barcelona, Barcelona, Spain; Department of Orthopaedics, Hôpital Fribourgeois, Villars-sur-Glâne, Switzerland
| | - Tania Diaz
- Department of Anatomy and Human Embryology, Faculty of Medicine, University of Barcelona, Barcelona, Spain
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Ghasemi SA, Murray BC, Lipphardt M, Yin C, Shaffer G, Raphael J, Vaupel Z, Fortin P. Accuracy of radiographic techniques in detection of the calcaneofibular ligament calcaneal insertion for lateral ankle ligament complex surgery. Surg Radiol Anat 2023:10.1007/s00276-023-03162-3. [PMID: 37198438 DOI: 10.1007/s00276-023-03162-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Accepted: 05/03/2023] [Indexed: 05/19/2023]
Abstract
BACKGROUND Grade III ankle sprains that fail conservative treatment can require surgical management. Anatomic procedures have been shown to properly restore joint mechanics, and precise localization of insertion sites of the lateral ankle complex ligaments can be determined through radiographic techniques. Ideally, radiographic techniques that are easily reproducible intraoperatively will lead to a consistently well-placed CFL reconstruction in lateral ankle ligament surgery. PURPOSE To determine the most accurate method to locate the calcaneofibular ligament (CFL) insertion radiographically. METHODS MRIs of 25 ankles were utilized to identify the "true" insertion of the CFL. Distances between the true insertion and three bony landmarks were measured. Three proposed methods (Best, Lopes, and Taser) for determining the CFL insertion were applied to lateral ankle radiographs. X and Y coordinate distances were measured from the insertion found on each proposed method to the three bony landmarks: the most superior point of the postero-superior surface of the calcaneus, the posterior most aspect of the sinus tarsi, and the distal tip of the fibula. X and Y distances were compared to the true insertion found on MRI. All measurements were made using a picture archiving and communication system. The average, standard deviation, minimum, and maximum were obtained. Statistical analysis was performed using repeated measures ANOVA, and a post hoc analysis was performed with the Bonferroni test. RESULTS The Best and Taser techniques were found to be closest to the true CFL insertion when combining X and Y distances. For distance in the X direction, there was no significant difference between techniques (P = 0.264). For distance in the Y direction, there was a significant difference between techniques (P = 0.015). For distance in the combined XY direction, there was a significant difference between techniques (P = 0.001). The CFL insertion as determined by the Best method was significantly closer to the true insertion compared to the Lopes method in the Y (P = 0.042) and XY (P = 0.004) directions. The CFL insertion as determined by the Taser method was significantly closer to the true insertion compared to the Lopes method in the XY direction (P = 0.017). There was no significant difference between the Best and Taser methods. CONCLUSION If the Best and Taser techniques can be readily used in the operating room, they would likely prove the most reliable for finding the true CFL insertion.
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Affiliation(s)
- S Ali Ghasemi
- Department of Orthopaedic Surgery, Albert Einstein Healthcare Network, Philadelphia, PA, USA.
| | | | - Matthew Lipphardt
- Royal Oak Beaumont Department of Orthopaedic Surgery, Royal Oak, MI, USA
| | - Clark Yin
- Royal Oak Beaumont Department of Orthopaedic Surgery, Royal Oak, MI, USA
| | - Gene Shaffer
- Department of Orthopaedic Surgery, Albert Einstein Healthcare Network, Philadelphia, PA, USA
| | - James Raphael
- Department of Orthopaedic Surgery, Albert Einstein Healthcare Network, Philadelphia, PA, USA
| | - Zachary Vaupel
- Royal Oak Beaumont Department of Orthopaedic Surgery, Royal Oak, MI, USA
| | - Paul Fortin
- Royal Oak Beaumont Department of Orthopaedic Surgery, Royal Oak, MI, USA
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Tan CY, Thevendran G. Subtalar instability. J Orthop Surg (Hong Kong) 2023; 31:10225536231182350. [PMID: 37449802 DOI: 10.1177/10225536231182350] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 07/18/2023] Open
Abstract
Subtalar instability is a confusing yet important condition in patients with lateral ankle instability. The author will explore subtalar kinematics, and how they are closely related to the joint stability of the subtalar joint, both with respect to its intrinsic ligaments and its extrinsic ligaments. As subtalar instability is difficult to diagnose, this article will provide readers with a better understanding of its clinical presentation. Discussions will also include useful radiographic modalities and the most recent evidence regarding their accuracy. The last section discusses surgical options and what the readers need to know in order to make a decision.
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Michels F, Vereecke E, Matricali G. Role of the intrinsic subtalar ligaments in subtalar instability and consequences for clinical practice. Front Bioeng Biotechnol 2023; 11:1047134. [PMID: 36970618 PMCID: PMC10036586 DOI: 10.3389/fbioe.2023.1047134] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2022] [Accepted: 02/28/2023] [Indexed: 03/12/2023] Open
Abstract
Subtalar instability (STI) is a disabling complication after an acute lateral ankle sprain and remains a challenging problem. The pathophysiology is difficult to understand. Especially the relative contribution of the intrinsic subtalar ligaments in the stability of the subtalar joint is still controversial. Diagnosis is difficult because of the overlapping clinical signs with talocrural instability and the absence of a reliable diagnostic reference test. This often results in misdiagnosis and inappropriate treatment. Recent research offers new insights in the pathophysiology of subtalar instability and the importance of the intrinsic subtalar ligaments. Recent publications clarify the local anatomical and biomechanical characteristics of the subtalar ligaments. The cervical ligament and interosseous talocalcaneal ligament seem to play an important function in the normal kinematics and stability of the subtalar joint. In addition to the calcaneofibular ligament (CFL), these ligaments seem to have an important role in the pathomechanics of subtalar instability (STI). These new insights have an impact on the approach to STI in clinical practice. Diagnosis of STI can be performed be performed by a step-by-step approach to raise the suspicion to STI. This approach consists of clinical signs, abnormalities of the subtalar ligaments on MRI and intraoperative evaluation. Surgical treatment should address all the aspects of the instability and focus on a restoration of the normal anatomical and biomechanical properties. Besides a low threshold to reconstruct the CFL, a reconstruction of the subtalar ligaments should be considered in complex cases of instability. The purpose of this review is to provide a comprehensive update of the current literature focused on the contribution of the different ligaments in the stability of the subtalar joint. This review aims to introduce the more recent findings in the earlier hypotheses on normal kinesiology, pathophysiology and relation with talocrural instability. The consequences of this improved understanding of pathophysiology on patient identification, treatment and future research are described.
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Affiliation(s)
- Frederick Michels
- Orthopaedic Department AZ Groeninge, Kortrijk, Belgium
- MIFAS by GRECMIP (Minimally Invasive Foot and Ankle Society), Merignac, France
- ESSKA-AFAS Ankle Instability Group, Kortrijk, Belgium
- Institute for Orthopaedic Research and Training (IORT), Department of Development and Regeneration, Faculty of Medicine, KU Leuven, Leuven, Belgium
- EFAS European Foot and Ankle Society, Brussels, Belgium
- *Correspondence: Frederick Michels,
| | - Evie Vereecke
- Department Development and Regeneration, Faculty of Medicine, University of Leuven Campus Kortrijk, Kortrijk, Belgium
| | - Giovanni Matricali
- Institute for Orthopaedic Research and Training (IORT), Department of Development and Regeneration, Faculty of Medicine, KU Leuven, Leuven, Belgium
- Department of Orthopaedics, Foot and Ankle Unit, University Hospitals Leuven, KU Leuven, Leuven, Belgium
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Togashi R, Edama M, Shagawa M, Osanami H, Yokota H, Hirabayashi R, Sekine C, Ishigaki T, Akuzawa H, Yamada Y, Toriumi T, Kageyama I. Relationship between Joint and Ligament Structures of the Subtalar Joint and Degeneration of the Subtalar Articular Facet. Int J Environ Res Public Health 2023; 20:3075. [PMID: 36833765 PMCID: PMC9966608 DOI: 10.3390/ijerph20043075] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Revised: 02/06/2023] [Accepted: 02/08/2023] [Indexed: 06/09/2023]
Abstract
This study aimed to clarify the relationship between the joint and ligament structures of the subtalar joint and degeneration of the subtalar articular facet. We examined 50 feet from 25 Japanese cadavers. The number of articular facets, joint congruence, and intersecting angles were measured for the joint structure of the subtalar joint, and the footprint areas of the ligament attachments of the cervical ligament, interosseous talocalcaneal ligament (ITCL), and anterior capsular ligament were measured for the ligament structure. Additionally, subtalar joint facets were classified into Degeneration (+) and (-) groups according to degeneration of the talus and calcaneus. No significant relationship was identified between the joint structure of the subtalar joint and degeneration of the subtalar articular facet. In contrast, footprint area of the ITCL was significantly higher in the Degeneration (+) group than in the Degeneration (-) group for the subtalar joint facet. These results suggest that the joint structure of the subtalar joint may not affect degeneration of the subtalar articular facet. Degeneration of the subtalar articular facet may be related to the size of the ITCL.
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Affiliation(s)
- Ryoya Togashi
- Institute for Human Movement and Medical Sciences, Niigata University of Health and Welfare, Niigata 950-3198, Japan
| | - Mutsuaki Edama
- Institute for Human Movement and Medical Sciences, Niigata University of Health and Welfare, Niigata 950-3198, Japan
- Department of Anatomy, School of Life Dentistry at Niigata, Nippon Dental University, Niigata 951-1500, Japan
| | - Mayuu Shagawa
- Institute for Human Movement and Medical Sciences, Niigata University of Health and Welfare, Niigata 950-3198, Japan
| | - Haruki Osanami
- Institute for Human Movement and Medical Sciences, Niigata University of Health and Welfare, Niigata 950-3198, Japan
| | - Hirotake Yokota
- Institute for Human Movement and Medical Sciences, Niigata University of Health and Welfare, Niigata 950-3198, Japan
| | - Ryo Hirabayashi
- Institute for Human Movement and Medical Sciences, Niigata University of Health and Welfare, Niigata 950-3198, Japan
| | - Chie Sekine
- Institute for Human Movement and Medical Sciences, Niigata University of Health and Welfare, Niigata 950-3198, Japan
| | - Tomonobu Ishigaki
- Institute for Human Movement and Medical Sciences, Niigata University of Health and Welfare, Niigata 950-3198, Japan
| | - Hiroshi Akuzawa
- Institute for Human Movement and Medical Sciences, Niigata University of Health and Welfare, Niigata 950-3198, Japan
| | - Yuki Yamada
- Institute for Human Movement and Medical Sciences, Niigata University of Health and Welfare, Niigata 950-3198, Japan
| | - Taku Toriumi
- Department of Anatomy, School of Life Dentistry at Niigata, Nippon Dental University, Niigata 951-1500, Japan
| | - Ikuo Kageyama
- Department of Anatomy, School of Life Dentistry at Niigata, Nippon Dental University, Niigata 951-1500, Japan
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Michels F, Stockmans F, Pottel H, Matricali G. Reconstruction of the cervical ligament in patients with chronic subtalar instability. Foot Ankle Surg 2022; 28:1286-1292. [PMID: 35752537 DOI: 10.1016/j.fas.2022.06.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/23/2022] [Revised: 05/24/2022] [Accepted: 06/12/2022] [Indexed: 02/04/2023]
Abstract
PURPOSE Diagnosis and treatment of subtalar instability (STI) remains complicated and challenging. The purpose of this study was to investigate the outcome of an anatomical reconstruction of the cervical ligament in patients with suspected chronic STI. METHODS This prospective study assessed the results of a surgical reconstruction of the cervical ligament using a gracilis tendon graft in a group of 14 patients (16 feet). Diagnosis of STI was performed using a predefined algorithm including clinical signs, MRI and peroperative evaluation. All patients had symptoms of chronic hindfoot instability despite prolonged non-surgical treatment. At final follow-up the outcome was assessed using the Karlsson score, the Foot and Ankle Outcome Score and the American Orthopaedic Foot and Ankle Society score. RESULTS After an average follow up of 22.6 months (range, 15-36), all patients reported significant improvement compared to their preoperative symptoms. The mean preoperative Karlsson score improved from 36.4 ± 13.5 (median 37, range 10-55) to a mean postoperative Karlsson score was 89.6 ± 8.5 (median 90, range 72-100) (P < 0.0001). The cervical ligament reconstruction was combined with other procedures in 13 cases: calcaneofibular ligament (CFL) reconstruction (3), CFL and anterior talofibular ligament reconstruction (7), bifurcate ligament reconstruction (3). CONCLUSION Anatomical reconstruction of the cervical ligament is a valid technique to treat patients with STI. It is a safe procedure and produces good clinical results with minimal complications. This technique can be considered in more complex cases and can be combined with other procedures according to the specific location of the instability. LEVEL OF EVIDENCE Level III.
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Affiliation(s)
- Frederick Michels
- Orthopaedic Department, AZ Groeninge, President Kennedylaan 4, 8500 Kortrijk, Belgium; MIFAS by GRECMIP (Minimally Invasive Foot and Ankle Society), Merignac, France; EFAS (European Foot and Ankle Society); ESSKA-AFAS Ankle Instability Group, Belgium; Institute for Orthopaedic Research and Training (IORT), Department of Development and Regeneration, Faculty of Medicine, KU Leuven, Leuven, Belgium; Dept. Development and Regeneration, Faculty of Medicine, University of Leuven campus Kortrijk, Etienne Sabbelaan 53, 8500 Kortrijk, Belgium.
| | - Filip Stockmans
- Orthopaedic Department, AZ Groeninge, President Kennedylaan 4, 8500 Kortrijk, Belgium; Dept. Development and Regeneration, Faculty of Medicine, University of Leuven campus Kortrijk, Etienne Sabbelaan 53, 8500 Kortrijk, Belgium.
| | - Hans Pottel
- Department of Public Health and Primary Care, Catholic University Leuven, Kortrijk, Belgium.
| | - Giovanni Matricali
- Institute for Orthopaedic Research and Training (IORT), Department of Development and Regeneration, Faculty of Medicine, KU Leuven, Leuven, Belgium; Department of Orthopaedics, Foot and Ankle Unit, University Hospitals Leuven, KU Leuven, Leuven, Belgium.
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13
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Michels F, Taylan O, Stockmans F, Vereecke E, Scheys L, Matricali G. The different subtalar ligaments show significant differences in their mechanical properties. Foot Ankle Surg 2022; 28:1014-1020. [PMID: 35190275 DOI: 10.1016/j.fas.2022.02.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/27/2021] [Revised: 02/01/2022] [Accepted: 02/14/2022] [Indexed: 02/04/2023]
Abstract
BACKGROUND Today, the relative contribution of each ligamentous structure in the stability of the subtalar joint is still unclear. The purpose of this study is to assess the material properties of the different ligamentous structures of the subtalar joint. METHODS Eighteen paired fresh-frozen cadaveric feet were used to obtain bone-ligament-bone complexes of the calcaneofibular ligament (CFL), the cervical ligament (CL) and the anterior capsular ligament-interosseous talocalcaneal ligament complex (ACaL-ITCL). The samples were subjected to uniaxial testing to calculate their respective stiffness and failure load. RESULTS The stiffness of ACaL-ITCL complex (mean: 150 ± 51 N/mm, 95% confidence interval (CI): 125.0-176.6 N/mm) was significantly higher than both CFL (mean: 55.8 ± 23.0 N/mm, CI: 43.8-67.7 N/mm) and CL (mean: 63.9 ± 38.0 N/mm, CI: 44.4-83.3 N/mm). The failure load of both the ACaL-ITCL complex (mean:382.5 ± 158 N, CI: 304.1-460.8 N) and the CFL (mean:320.4 ± 122.0 N, CI: 257.5-383.2 N) were significantly higher than that of the CL (mean:163.5 ± 58.0 N, CI: 131.3-195.7 N). The injury pattern demonstrated a partial rupture in all CFL and ACaL-ITCL specimens and in 60% of the CL specimens. CONCLUSION The CFL, CL and ACaL-ITCL show significant differences in their intrinsic mechanical properties. Both the CFL and CL are more compliant ligaments and seem to be involved in the development of subtalar instability. Based on the material properties, a gracilis tendon graft seems more appropriate than a synthetic ligament to reconstruct a CL or CFL. A partial rupture was the most commonly seen injury pattern in all ligaments. A fibular avulsion of the CFL was only rarely seen. The injury patterns need further investigation as they are important to optimize diagnosis and treatment.
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Affiliation(s)
- Frederick Michels
- Orthopaedic Department, AZ Groeninge, President Kennedylaan 4, 8500 Kortrijk, Belgium; MIFAS by GRECMIP (Minimally Invasive Foot and Ankle Society), Merignac, France; ESSKA-AFAS Ankle Instability Group; Institute for Orthopaedic Research and Training (IORT), Department of Development and Regeneration, Faculty of Medicine, KU Leuven, Leuven, Belgium.
| | - Orçun Taylan
- Institute for Orthopaedic Research and Training (IORT), Department of Development and Regeneration, Faculty of Medicine, KU Leuven, Leuven, Belgium.
| | - Filip Stockmans
- Orthopaedic Department, AZ Groeninge, President Kennedylaan 4, 8500 Kortrijk, Belgium; Dept. Development and Regeneration, Faculty of Medicine, University of Leuven campus Kortrijk, Etienne Sabbelaan 53, 8500 Kortrijk, Belgium.
| | - Evie Vereecke
- Dept. Development and Regeneration, Faculty of Medicine, University of Leuven campus Kortrijk, Etienne Sabbelaan 53, 8500 Kortrijk, Belgium.
| | - Lennart Scheys
- Institute for Orthopaedic Research and Training (IORT), Department of Development and Regeneration, Faculty of Medicine, KU Leuven, Leuven, Belgium.
| | - Giovanni Matricali
- Institute for Orthopaedic Research and Training (IORT), Department of Development and Regeneration, Faculty of Medicine, KU Leuven, Leuven, Belgium; Department of Orthopaedics, Foot and Ankle Unit, University Hospitals Leuven, KU Leuven, Leuven, Belgium.
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14
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Burssens A, Krähenbühl N, Lenz AL, Howell K, Zhang C, Sripanich Y, Saltzman CL, Barg A. Interaction of loading and ligament injuries in subtalar joint instability quantified by 3D weightbearing computed tomography. J Orthop Res 2022; 40:933-944. [PMID: 34191355 DOI: 10.1002/jor.25126] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/05/2021] [Revised: 05/13/2021] [Accepted: 06/14/2021] [Indexed: 02/04/2023]
Abstract
Despite decades of research since its first description, subtalar joint instability remains a diagnostic enigma within the concept of hindfoot instability. This could be attributed to current imaging techniques, which are impeded by two-dimensional measurements. Therefore, we used weightbearing computed tomography imaging to quantify three-dimensional displacement associated with subtalar joint instability. Three-dimensional models were generated in seven paired cadaver specimens to compute talocalcaneal displacement after different patterns of axial load (85 kg) combined with torque in internal and external rotation (10 Nm). Sequential imaging was repeated in the subtalar joint containing intact ligaments to determine reference displacement. Afterward, the interosseus talocalcaneal ligament (ITCL) or calcaneofibular ligament (CFL) was sectioned, then the ITCL with CFL and after the ITCL, CFL with the deltoid ligament (DL). The highest translation could be detected in the dorsal direction and the highest rotation occurred in the internal direction when external torque was applied to the foot without load. These displacements differed significantly from the condition containing intact ligaments, with a mean difference of 1.6 mm (95% CI, 1.3 to 1.9) for dorsal translation and a mean of 12.4° (95% CI, 10.1 to 14.8) for internal rotation. Clinical relevance: Our study provides a novel and noninvasive analysis to quantify subtalar joint instability based on three-dimensional WBCT imaging. This approach overcomes former studies using trans-osseous fixation to determine three-dimensional subtalar joint displacement and implements an imaging device and software modalities that are readily available. Based on our findings, we recommend applying torque in external rotation to the foot to optimize the detection of subtalar joint instability.
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Affiliation(s)
- Arne Burssens
- Department of Orthopaedics, University of Utah, Salt Lake City, Utah, USA.,Department of Orthopaedics, University Hospital of Ghent, Ghent, Belgium
| | - Nicola Krähenbühl
- Department of Orthopaedics, University Hospital Basel, Basel, Switzerland
| | - Amy L Lenz
- Department of Orthopaedics, University of Utah, Salt Lake City, Utah, USA
| | - Kalebb Howell
- Department of Orthopaedics, University of Utah, Salt Lake City, Utah, USA
| | - Chong Zhang
- Department of Epidemiology, University of Utah, Salt Lake City, Utah, USA
| | - Yantarat Sripanich
- Department of Orthopaedics, University of Utah, Salt Lake City, Utah, USA
| | - Charles L Saltzman
- Department of Orthopaedics, University of Utah, Salt Lake City, Utah, USA
| | - Alexej Barg
- Department of Orthopaedics, University of Utah, Salt Lake City, Utah, USA.,Department of Orthopaedics, Trauma, and Reconstructive Surgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.,Department of Trauma Surgery, Orthopaedics, and Sports Traumatology, BG Hospital Hamburg, Hamburg, Germany
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15
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Jung HG, Moon SG, Yoon DY, Jang H, Kang JH. Feasibility of MRI for the evaluation of interosseous ligament vertical segment via subtalar arthroscopy correlation: comparison of 2D and 3D MR images. BMC Musculoskelet Disord 2021; 22:869. [PMID: 34641837 PMCID: PMC8513297 DOI: 10.1186/s12891-021-04759-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Accepted: 10/05/2021] [Indexed: 11/28/2022] Open
Abstract
Background Interosseous ligament vertical segment (IOLV) and calcaneofibular ligament (CFL) have been reported to be important in stabilizing the subtalar joint. Unlike CFL, there is not much information regarding the comparison of MRI results with surgical evaluation of IOLV and the comparison between 2D and 3D MRI on IOLV evaluation. The feasibility of MRI in IOLV evaluation has yet to be reported. The purpose of this study was to evaluate the validity and reliability of MRI in IOLV tear detection via correlation with arthroscopic results. We also compared the diagnostic performance of 2D and 3D MR images. Methods In this retrospective study, 52 patients who underwent subtalar arthroscopy after ankle MRI were enrolled. Arthroscopic results confirmed IOLV tear in 25 cases and intact IOLV in 27 cases. Two radiologists independently evaluated the IOLV tears using only conventional 2D images, followed by isotropic 3D images, and comparison with arthroscopic results. Results Only the 2D sequences interpreted by two readers showed a sensitivity of 64.0–96.0%, a specificity of 29.6–44.4%, a positive predictive value of 51.6–56.4%, and a negative predictive value of 57.1–88.9%. Addition of isotropic 3D sequences changed the sensitivity to 60.0–80.0%, specificity to 63.0–77.8%, positive predictive value to 64.3–76.9%, and negative predictive value to 66.7–80.8%. The overall diagnostic performance of isotropic 3D sequences (AUC values: 0.679–0.816) was higher than that of 2D sequences (AUC values: 0.568–0.647). Inter-observer and intra-observer agreement between the two readers was moderate-to-good for both 2D and 3D sequences. The diagnostic accuracy in 19 patients with tarsal sinus fat obliteration tended to increase from 26.3–42.1% to 57.9–73.7% with isotropic 3D sequences compared with 2D sequences. Conclusions Isotropic 3D MRI was feasible for the assessment of IOLV tear prior to subtalar arthroscopy. Additional 3D sequences showed higher diagnostic accuracy compared with conventional 2D sequences in IOLV evaluation. Isotropic 3D sequences may be more valuable in detecting IOLV tear in case of tarsal sinus fat obliteration.
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Affiliation(s)
- Hong-Geun Jung
- Department of Orthopedic Surgery, Konkuk University Medical Center, Konkuk University School of Medicine, Gwangjin-gu, Seoul, South Korea
| | - Sung Gyu Moon
- Department of Radiology, Konkuk University Medical Center, Konkuk University School of Medicine, 120-1 Neungdong-ro, Gwangjin-gu, Seoul, 05030, South Korea.
| | - Deuk Young Yoon
- Department of Radiology, Konkuk University Medical Center, Konkuk University School of Medicine, 120-1 Neungdong-ro, Gwangjin-gu, Seoul, 05030, South Korea
| | - Hyemin Jang
- Department of Radiology, Konkuk University Medical Center, Konkuk University School of Medicine, 120-1 Neungdong-ro, Gwangjin-gu, Seoul, 05030, South Korea
| | - Ji Hee Kang
- Department of Radiology, Konkuk University Medical Center, Konkuk University School of Medicine, 120-1 Neungdong-ro, Gwangjin-gu, Seoul, 05030, South Korea
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Pereira BS, Andrade R, Espregueira-Mendes J, Marano RPC, Oliva XM, Karlsson J. Current Concepts on Subtalar Instability. Orthop J Sports Med 2021; 9:23259671211021352. [PMID: 34435065 PMCID: PMC8381447 DOI: 10.1177/23259671211021352] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/08/2021] [Accepted: 02/23/2021] [Indexed: 12/19/2022] Open
Abstract
Subtalar instability remains a topic of debate, and its precise cause is still unknown. The mechanism of injury and clinical symptoms of ankle and subtalar instabilities largely overlap, resulting in many cases of isolated or combined subtalar instability that are often misdiagnosed. Neglecting the subtalar instability may lead to failure of conservative or surgical treatment and result in chronic ankle instability. Understanding the accurate anatomy and biomechanics of the subtalar joint, their interplay, and the contributions of the different subtalar soft tissue structures is fundamental to correctly diagnose and manage subtalar instability. An accurate diagnosis is crucial to correctly identify those patients with instability who may require conservative or surgical treatment. Many different nonsurgical and surgical approaches have been proposed to manage combined or isolated subtalar instability, and the clinician should be aware of available treatment options to make an informed decision. In this current concepts narrative review, we provide a comprehensive overview of the current knowledge on the anatomy, biomechanics, clinical and imaging diagnosis, nonsurgical and surgical treatment options, and outcomes after subtalar instability treatment.
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Affiliation(s)
- Bruno S. Pereira
- Facultad de Medicina, University of Barcelona, Casanova, 143, 08036
Barcelona, Spain
- Clínica Espregueira - FIFA Medical Centre of Excellence, Porto,
Portugal
- Dom Henrique Research Centre, Porto, Portugal
- Hospital Privado de Braga, Lugar da Igreja Nogueira, Braga,
Portugal
| | - Renato Andrade
- Clínica Espregueira - FIFA Medical Centre of Excellence, Porto,
Portugal
- Dom Henrique Research Centre, Porto, Portugal
- Porto Biomechanics Laboratory (LABIOMEP), Faculty of Sports,
University of Porto, Porto, Portugal
- Porto Biomechanics Laboratory (LABIOMEP), University of Porto,
Porto, Portugal
| | - João Espregueira-Mendes
- Clínica Espregueira - FIFA Medical Centre of Excellence, Porto,
Portugal
- Dom Henrique Research Centre, Porto, Portugal
- School of Medicine, Minho University, Braga, Portugal
- 3B’s–PT Government Associate Laboratory, Braga/Guimarães,
Portugal
- 3B’s Research Group– Biomaterials, Biodegradables and Biomimetics,
University of Minho, Headquarters of the European Institute of Excellence on Tissue
Engineering and Regenerative Medicine, Barco, Guimarães, Portugal
| | | | - Xavier Martin Oliva
- Facultad de Medicina, University of Barcelona, Casanova, 143, 08036
Barcelona, Spain
- Orthopedic Surgery Department, Clínica Ntra. Sra. Del Remei,
Barcelona, Spain
| | - Jón Karlsson
- Department of Orthopaedics, Sahlgrenska Academy, Sahlgrenska
University Hospital, Gothenburg University, Gothenburg, Sweden
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Michels F, Matricali G, Wastyn H, Vereecke E, Stockmans F. A calcaneal tunnel for CFL reconstruction should be directed to the posterior inferior medial edge of the calcaneal tuberosity. Knee Surg Sports Traumatol Arthrosc 2021; 29:1325-1331. [PMID: 32613335 DOI: 10.1007/s00167-020-06134-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/24/2020] [Accepted: 06/26/2020] [Indexed: 11/24/2022]
Abstract
PURPOSE Anatomical reconstruction of the calcaneofibular ligament (CFL) is a common technique to treat chronic lateral ankle instability. A bone tunnel is used to fix the graft in the calcaneus. The purpose of this study is to provide some recommendations about tunnel entrance and tunnel direction based on anatomical landmarks. METHODS The study consisted of two parts. The first part assessed the lateral tunnel entrance for location and safety. The second part addressed the tunnel direction and safety upon exiting the calcaneum on the medial side. In the first part, 29 specimens were used to locate the anatomical insertion of the CFL based on the intersection of two lines related to the fibular axis and specific landmarks on the lateral malleolus. In the second part, 22 specimens were dissected to determine the position of the neurovascular structures at risk during tunnel drilling. Therefore, a method based on four imaginary squares using external anatomical landmarks was developed. RESULTS For the tunnel entrance on the lateral side, the mean distance to the centre of the CFL footprint was 2.8 ± 3.0 mm (0-10.4 mm). The mean distance between both observers was 4.2 ± 3.2 mm (0-10.3 mm). The mean distance to the sural nerve was 1.4 ± 2 mm (0-5.8 mm). The mean distance to the peroneal tendons was 7.3 ± 3.1 mm (1.2-12.4 mm). For the tunnel exit on the medial side, the two anterior squares always contained the neurovascular bundle. A safe zone without important neurovascular structures was found and corresponded to the two posterior squares. CONCLUSION Lateral landmarks enabled to locate the CFL footprint. Precautions should be taken to protect the nearby sural nerve. A safe zone on the medial side could be determined to guide safe tunnel direction. A calcaneal tunnel should be directed to the posterior inferior medial edge of the calcaneal tuberosity.
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Affiliation(s)
- Frederick Michels
- Orthopaedic Department, AZ Groeninge, President Kennedylaan 4, 8500, Kortrijk, Belgium. .,GRECMIP-MIFAS (Groupe de Recherche et d'Etude en Chirurgie Mini-Invasive du Pied-Minimally Invasive Foot and Ankle Society), Merignac, France. .,ESSKA-AFAS Ankle Instability Group, Luxembourg, Luxembourg. .,Institute of Orthopaedic Research and Training, KU Leuven, Leuven, Belgium.
| | - Giovanni Matricali
- Department of Development and Regeneration, KU Leuven, Leuven, Belgium.,Department of Orthopaedics, Foot and Ankle Unit, University Hospitals Leuven, KU Leuven, Leuven, Belgium.,Institute of Orthopaedic Research and Training, KU Leuven, Leuven, Belgium
| | - Heline Wastyn
- Department Development and Regeneration, Faculty of Medicine, University of Leuven Campus Kortrijk, Etienne Sabbelaan 53, 8500, Kortrijk, Belgium
| | - Evie Vereecke
- Department Development and Regeneration, Faculty of Medicine, University of Leuven Campus Kortrijk, Etienne Sabbelaan 53, 8500, Kortrijk, Belgium
| | - Filip Stockmans
- Orthopaedic Department, AZ Groeninge, President Kennedylaan 4, 8500, Kortrijk, Belgium.,Department Development and Regeneration, Faculty of Medicine, University of Leuven Campus Kortrijk, Etienne Sabbelaan 53, 8500, Kortrijk, Belgium
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18
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Michels F, Matricali G, Vereecke E, Dewilde M, Vanrietvelde F, Stockmans F. The intrinsic subtalar ligaments have a consistent presence, location and morphology. Foot Ankle Surg 2021; 27:101-109. [PMID: 32169330 DOI: 10.1016/j.fas.2020.03.002] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/03/2019] [Revised: 02/01/2020] [Accepted: 03/02/2020] [Indexed: 02/04/2023]
Abstract
BACKGROUND Chronic subtalar instability is a disabling complication after acute ankle sprains. Currently, the literature describing the anatomy of the intrinsic subtalar ligaments is limited and equivocal which causes difficulties in diagnosis and treatment of subtalar instability. The purpose of this study is to assess the anatomical characteristics of the subtalar ligaments and to clarify some points of confusion. METHODS In 16 cadaveric feet, the dimensions and locations of the subtalar ankle ligaments were assessed and measured. CT-scans before dissection and after indication of the footprints with radio-opaque paint allowed to generate 3D models and assess the footprint characteristics. RESULTS The cervical ligament (CL) had similar dimensions as the lateral ligaments: anterior length 13.9 ± 1.5 mm, posterior length 18.5 ± 2.9 mm, talar width 13.6 ± 2.2 mm, calcaneal width 15.8 ± 3.7 mm. The anterior capsular ligament (ACaL) and interosseous talocalcaneal ligament (ITCL) were found to be smaller structures with consistent dimensions and locations. CONCLUSION This study identified consistent characteristics of the intrinsic subtalar ligaments and clarifies the local anatomical situation. The dimensions and footprints of the intrinsic ligaments of the subtalar joint suggest a more important role of the CL and ACaL in the stability of the subtalar joint. The results of this study are relevant to improve diagnostic tools and offer some guidelines when reconstructing the injured ligaments.
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Affiliation(s)
- Frederick Michels
- Orthopaedic Department, AZ Groeninge, President Kennedylaan 4, 8500 Kortrijk, Belgium; GRECMIP - MIFAS (Groupe de Recherche et d'Etude en Chirurgie Mini-Invasive du Pied - Minimally Invasive Foot and Ankle Society), Merignac, France.
| | - Giovanni Matricali
- Department of Development and Regeneration, KU Leuven, Leuven, Belgium; Department of Orthopaedics, Foot and Ankle Unit, University Hospitals Leuven, KU Leuven, Leuven, Belgium; Institute of Orthopaedic Research and Training, KU Leuven, Leuven, Belgium
| | - Evie Vereecke
- Dept. Development and Regeneration, Faculty of Medicine, University of Leuven Campus Kortrijk, Etienne Sabbelaan 53, 8500 Kortrijk, Belgium
| | - Miloud Dewilde
- Dept. Development and Regeneration, Faculty of Medicine, University of Leuven Campus Kortrijk, Etienne Sabbelaan 53, 8500 Kortrijk, Belgium
| | - Frederik Vanrietvelde
- Radiology Department, AZ Groeninge Kortrijk, President Kennedylaan 4, 8500 Kortrijk, Belgium
| | - Filip Stockmans
- Orthopaedic Department, AZ Groeninge, President Kennedylaan 4, 8500 Kortrijk, Belgium; Dept. Development and Regeneration, Faculty of Medicine, University of Leuven Campus Kortrijk, Etienne Sabbelaan 53, 8500 Kortrijk, Belgium
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Iglesias-Durán E, Guerra-Pinto F, García-Esteo F, Vilá-Rico J. Anatomic Arthroscopic Graft Reconstruction of the Interosseous Talocalcaneal Ligament for Subtalar Instability. Arthrosc Tech 2020; 9:e1903-e1906. [PMID: 33381399 PMCID: PMC7768199 DOI: 10.1016/j.eats.2020.08.020] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/24/2020] [Accepted: 08/14/2020] [Indexed: 02/03/2023] Open
Abstract
Instabilities of the subtalar joint are commonly overlooked or mismanaged, and chronic instability is a debilitating condition leading to premature joint degeneration. Several methods of treatment have been described, mainly screw fixation, arthrodesis, or ligament reconstruction. Most studies describe open methods for ligament reconstruction. We describe an original technique for "all-inside" arthroscopic graft reconstruction of the interosseous talocalcaneal ligament for subtalar instability.
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Affiliation(s)
- Elvira Iglesias-Durán
- Department of Orthopaedic Surgery and Traumatology. Hospital Asepeyo, Madrid, Spain,Department of Orthopaedic Surgery and Traumatology, Hospital Quirónsalud Juan Bravo 39, Madrid, Spain,Address correspondence to Elvira Iglesias Durán, c/Alcalde Sainz de Baranda 29. 2º. 28009 Madrid, Spain.
| | - Francisco Guerra-Pinto
- Hospital Ortopédico de Sant’Ana, Parede, Portugal,Hospital da Cruz Vermelha Portuguesa, Lisboa, Portugal,NOVA Medical School, Lisboa, Portugal,University of Barcelona, Barcelona, Spain
| | - Francisco García-Esteo
- Department of Orthopaedic Surgery and Traumatology, Hospital Universitario Fundación Jiménez Díaz, Madrid, Spain,Department of Anatomy, Faculty of Medicine, Universidad Francisco de Vitoria, Madrid, Spain
| | - Jesús Vilá-Rico
- Department of Orthopaedic Surgery and Traumatology, Hospital Quirónsalud Juan Bravo 39, Madrid, Spain,Department of Orthopaedic Surgery and Traumatology, Hospital Universitario 12 de Octubre, Madrid, Spain,Department of Surgery, Universidad Complutense, Madrid, Spain
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20
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Peña Fernández M, Hoxha D, Chan O, Mordecai S, Blunn GW, Tozzi G, Goldberg A. Centre of Rotation of the Human Subtalar Joint Using Weight-Bearing Clinical Computed Tomography. Sci Rep 2020; 10:1035. [PMID: 31974489 PMCID: PMC6978465 DOI: 10.1038/s41598-020-57912-z] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2019] [Accepted: 01/06/2020] [Indexed: 11/09/2022] Open
Abstract
Accurate in vivo quantification of subtalar joint kinematics can provide important information for the clinical evaluation of subtalar joint function; the analysis of outcome of surgical procedures of the hindfoot; and the design of a replacement subtalar joint prosthesis. The objective of the current study was to explore the potential of full weight-bearing clinical computed tomography (CT) to evaluate the helical axis and centre of rotation of the subtalar joint during inversion and eversion motion. A subject specific methodology was proposed for the definition of the subtalar joint motion combining three-dimensional (3D) weight-bearing imaging at different joint positions with digital volume correlation (DVC). The computed subtalar joint helical axis parameters showed consistency across all healthy subjects and in line with previous data under simulated loads. A sphere fitting approach was introduced for the computation of subtalar joint centre of rotation, which allows to demonstrate that this centre of rotation is located in the middle facet of the subtalar joint. Some translation along the helical axis was also observed, reflecting the elasticity of the soft-tissue restraints. This study showed a novel technique for non-invasive quantitative analysis of bone-to-bone motion under full weight-bearing of the hindfoot. Identifying different joint kinematics in patients with ligamentous laxity and instability, or in the presence of stiffness and arthritis, could help clinicians to define optimal patient-specific treatments.
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Affiliation(s)
- Marta Peña Fernández
- Zeiss Global Centre, School of Mechanical and Design Engineering, University of Portsmouth, Portsmouth, PO1 3DJ, UK.
| | - Dorela Hoxha
- Zeiss Global Centre, School of Mechanical and Design Engineering, University of Portsmouth, Portsmouth, PO1 3DJ, UK
| | - Oliver Chan
- UCL Institute of Orthopaedics & Musculoskeletal Science, Division of Surgery & Interventional Science, Royal National Orthopaedic Hospital, Stanmore, HA7 4LP, UK
| | - Simon Mordecai
- UCL Institute of Orthopaedics & Musculoskeletal Science, Division of Surgery & Interventional Science, Royal National Orthopaedic Hospital, Stanmore, HA7 4LP, UK
| | - Gordon W Blunn
- School of Pharmacy and Biomedical Sciences, University of Portsmouth, Portsmouth, PO1 2DT, UK
| | - Gianluca Tozzi
- Zeiss Global Centre, School of Mechanical and Design Engineering, University of Portsmouth, Portsmouth, PO1 3DJ, UK
| | - Andy Goldberg
- UCL Institute of Orthopaedics & Musculoskeletal Science, Division of Surgery & Interventional Science, Royal National Orthopaedic Hospital, Stanmore, HA7 4LP, UK
- MSK Lab, Faculty of Medicine, Department of Surgery & Cancer, Imperial College London, Level 2, Faculty Building, South Kensington Campus, London, SW7 2AZ, UK
- The London Ankle & Arthritis Centre, The Wellington Hospital, Wellington Place, London, NW8 9LE, UK
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21
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Michels F, Matricali G, Guillo S, Vanrietvelde F, Pottel H, Stockmans F. An oblique fibular tunnel is recommended when reconstructing the ATFL and CFL. Knee Surg Sports Traumatol Arthrosc 2020; 28:124-131. [PMID: 31240379 DOI: 10.1007/s00167-019-05583-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/06/2019] [Accepted: 06/18/2019] [Indexed: 10/26/2022]
Abstract
PURPOSE A bone tunnel is often used during the reconstruction of the anterior talofibular ligament (ATFL) and calcaneofibular ligament (CFL). The purpose of this study is to compare proposed directions for drilling this fibular tunnel and to assess potential tunnel length, using a 5-mm-diameter tunnel and surrounding bone. METHODS Anonymous DICOM data from spiral CT-scan images of the ankle were obtained from 12 Caucasian patients: 6 females and 6 males. Virtual tunnels were generated in a 3D bone model with angles of 30°, 45°, 60° and 90° in relation to the fibular long axis. Several measurements were performed: distance from entrance to perforation of opposing cortex, shortening of the tunnel, distance from tunnel centre to bone surface. RESULTS A tunnel in a perpendicular direction resulted in an average possible tunnel length of 16.8 (± 2.7) mm in the female group and 20.3 (± 3.4) mm in the male group. A tunnel directed at 30° offered the longest length: 30.9 (± 2.5) mm in the female group and 34.4 (± 2.9) mm in the male group. The use of a 5-mm-diameter tunnel in a perpendicular direction caused important shortening of the tunnel at the entrance in some cases. The perpendicular tunnel was very near to the digital fossa while the most obliquely directed tunnels avoided this region. CONCLUSION An oblique tunnel allows for a longer tunnel and avoids the region of the digital fossa, thereby retaining more surrounding bone. In addition, absolute values of tunnel length are given, which can be useful when considering the use of certain implants. We recommend drilling an oblique fibular tunnel when reconstructing the ATFL and CFL.
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Affiliation(s)
- Frederick Michels
- Orthopaedic Department, AZ Groeninge, President Kennedylaan 4, 8500, Kortrijk, Belgium.
| | - Giovanni Matricali
- Department of Development and Regeneration, KU Leuven, Leuven, Belgium.,Department of Orthopaedics, Foot and Ankle Unit, University Hospitals Leuven, KU Leuven, Leuven, Belgium.,Institute of Orthopaedic Research and Training, KU Leuven, Leuven, Belgium
| | - Stephane Guillo
- Orthopaedic Department, Mérignac Sports Clinic, 2, Rue Georges Negrevergne, 33700, Mérignac, France
| | - Frederik Vanrietvelde
- Radiology Department, AZ Groeninge Kortrijk, President Kennedylaan 4, 8500, Kortrijk, Belgium
| | - Hans Pottel
- Department of Public Health and Primary Care, Catholic University Leuven, Kortrijk, Belgium
| | - Filip Stockmans
- Orthopaedic Department, AZ Groeninge, President Kennedylaan 4, 8500, Kortrijk, Belgium.,Department of Development and Regeneration, Faculty of Medicine, University of Leuven Campus Kortrijk, Etienne Sabbelaan 53, 8500, Kortrijk, Belgium
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