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European Journal of Trauma and... Oct 2022Pathologies of the medial talus (e.g., fractures, tarsal coalitions) can lead to symptomatic problems such as pain and nonunion. Bony resection may be a good solution...
PURPOSE
Pathologies of the medial talus (e.g., fractures, tarsal coalitions) can lead to symptomatic problems such as pain and nonunion. Bony resection may be a good solution for both. It is unclear how much of the medial talus can be taken before the subtalar joint becomes unstable. The aim of this study was to evaluate the effect a limited resection of the medial talar facet and the anteromedial portion of the posterior talar facet has on subtalar stability.
METHODS
Eight fresh-frozen human cadaveric lower limbs were mounted in a frame for simulated weight-bearing. Computed tomography scans were obtained under 700 N single-legged stance loading, with the foot in neutral, 15° inversion, and 15° eversion positions. A sequential resection of 10, 20, and 30% of the medial facet and the anteromedial portion of the posterior talar facet to the calcaneus, based on the intact talus width, was performed. Measurements of subtalar vertical angulation, talar subluxation, coronal posterior facet angle and talocalcaneal (Kite) angle in the anteroposterior and lateral view were performed.
RESULTS
Gross clinical instability was not observed in any of the specimens. No significant differences were detected in the measurements between the resected and intact states (P ≥ 0.10) as well as among the resected states (P ≥ 0.11).
CONCLUSION
In a biomechanical setting, resecting up to 30% of the medial facet and anteromedial portion of the posterior facet based on the intact talus width-does not result in any measurable instability of the subtalar joint in presence of intact ligamentous structures.
LEVEL OF EVIDENCE
V.
Topics: Humans; Joint Dislocations; Pain; Subtalar Joint; Talus; Tomography, X-Ray Computed; Weight-Bearing
PubMed: 35199184
DOI: 10.1007/s00068-022-01915-0 -
Diagnostics (Basel, Switzerland) Jan 2023Adult acquired flatfoot deformity (AAFD) is a disorder caused by repetitive overloading, which leads to progressive posterior tibialis tendon (PTT) insufficiency. It... (Review)
Review
Adult acquired flatfoot deformity (AAFD) is a disorder caused by repetitive overloading, which leads to progressive posterior tibialis tendon (PTT) insufficiency. It mainly affects middle-aged women and occurs with foot pain, malalignment, and loss of function. After clinical examination, imaging plays a key role in the diagnosis and management of this pathology. Imaging allows confirmation of the diagnosis, monitoring of the disorder, outcome assessment and complication identification. Weight-bearing radiography of the foot and ankle are gold standard for the diagnosis of AAFD. Magnetic Resonance Imaging (MRI) is not routinely needed for the diagnosis; however, it can be used to evaluate the spring ligament and the degree of PTT damage which can help to guide surgical plans and management in patients with severe deformity. Ultrasonography (US) can be considered another helpful tool to evaluate the condition of the PTT and other soft-tissue structures. Computed Tomography (CT) provides enhanced, detailed visualization of the hindfoot, and it is useful both in the evaluation of bone abnormalities and in the accurate evaluation of measurements useful for diagnosis and post-surgical follow-up. Other state-of-the-art imaging examinations, like multiplanar weight-bearing imaging, are emerging as techniques for diagnosis and preoperative planning but are not yet standardized and their scope of application is not yet well defined. The aim of this review, performed through Pubmed and Web of Science databases, was to analyze the literature relating to the role of imaging in the diagnosis and treatment of AAFD.
PubMed: 36673035
DOI: 10.3390/diagnostics13020225 -
Strategies in Trauma and Limb... 2021While surgical stabilisation of the subtalar joint (arthroeresis) in children remains controversial in the USA, it is widely practised worldwide, with reportedly good...
BACKGROUND
While surgical stabilisation of the subtalar joint (arthroeresis) in children remains controversial in the USA, it is widely practised worldwide, with reportedly good outcomes. We are presenting a series of patients who met our criteria for calcaneal lengthening, but whose parents chose the less invasive option of talo-tarsal stabilisation (TTS). The goal of this surgery was to forestall or prevent hindfoot osteotomy.
MATERIALS AND METHODS
With IRB approval, we conducted this retrospective review of 32 patients (60 ft), who underwent TTS for flexible planovalgus deformity and had a minimum of 1-year follow-up. The aetiology was idiopathic for the majority, with a few being neurogenic or syndromic. The age range was 6-15 years; the younger patients had neuromuscular aetiology or underlying syndromes. Concomitant procedures included percutaneous Achilles lengthening (33 ft), Kidner (9 ft) and guided growth for ankle valgus (2).
RESULTS
In the early post-immobilisation phase, peroneal spasm occurred in four patients (6 ft). This resolved with Botox injection in the peroneus brevis in three patients and required transfer of the peroneus brevis to the peroneus longus in one patient. At follow-up, ranging from 1 to 4.5 years, 50 implants (83.4%) were retained and the patients reported satisfactory outcomes. Henceforth, those patients will be monitored on a p.r.n. basis. Due to lingering discomfort, implants were repositioned in one and removed in five patients (10 ft = 16.6%). Upon further follow-up, these patients have not manifested recurrent deformity. Therefore, subsequent salvage by osteotomy and/or lengthening of the calcaneus has not been necessary.
CONCLUSION
TTS for the symptomatic flatfoot, combined with other procedures as indicated, offers advantages over the currently more accepted methods of medial shift osteotomy or calcaneal lengthening. The outcome at 1 year is a good forecast of whether or not further treatment will be required. This is a simpler and preferred option as compared to other methods of surgical management and, in our experience, has obviated the need for osteotomy or lengthening of the calcaneus.
LEVEL OF EVIDENCE
IV retrospective case series.
HOW TO CITE THIS ARTICLE
Stevens P, Lancaster A, Khwaja A. Talar-tarsal Stabilisation: Goals and Initial Outcomes. Strategies Trauma Limb Reconstr 2021;16(3):168-171.
PubMed: 35111256
DOI: 10.5005/jp-journals-10080-1538 -
European Review For Medical and... Jan 2017Adult acquired flatfoot deformity is generally associated with a collapsing medial longitudinal arch and a progressive loss of strength of the posterior tibial tendon... (Review)
Review
OBJECTIVE
Adult acquired flatfoot deformity is generally associated with a collapsing medial longitudinal arch and a progressive loss of strength of the posterior tibial tendon (PTT). This condition is commonly associated with PTT dysfunction or rupture, which can have an arthritic or a traumatic etiology. Several causes have been proposed to explain the clinical evidence of tendon degeneration observed at the time of surgery including trauma, anatomical, mechanical, inflammatory and ischemic factors.
MATERIALS AND METHODS
In this review, we analyzed anatomy, pathophysiology and existing classifications of posterior tibial tendon dysfunction.
RESULTS
Anatomical features, and in particular vascularization, expose PTT to major degenerative disorders until rupture. A literature overview showed that a low blood supply of the gliding part of the tendon is linked to a dysfunction and/or a rupture of the PTT in the region located behind the medial malleolus.
CONCLUSIONS
PTT low blood supply causes a dysfunction resulting in an abnormal loading of the foot's medial structures. This may be the reason why PTT dysfunction leads to an acquired flatfoot deformity. Conversely, flatfoot deformity may be a predisposing factor for the onset of PTT dysfunction.
Topics: Flatfoot; Foot; Humans; Posterior Tibial Tendon Dysfunction; Tendons; Tibia
PubMed: 28121362
DOI: No ID Found -
Journal of Orthopaedic Surgery and... Sep 2023This study analyzed the advantages and disadvantages of different procedures for stage IIA progressive collapsing foot deformity (PCFD) through three-dimensional finite...
BACKGROUND
This study analyzed the advantages and disadvantages of different procedures for stage IIA progressive collapsing foot deformity (PCFD) through three-dimensional finite element models.
METHODS
A previous validated stage IIA PCFD FEA model was established consisting of 16 bones, 56 ligaments, 5 muscles and soft tissues. The ligament properties of the spring, deltoid, short plantar and long plantar ligaments, and plantar fascia were attenuated according to a previous publication. Medial column fusion (MCF), medializing calcaneal osteotomy (MCO), lateral column lengthening (LCL), and subtalar joint arthroereisis (SJA) operations were simulated in this model. The indexes of plantar stress distribution, maximum von Mises of the medial and lateral columns, strain of the medial ligaments and plantar fascia that supported the medial longitudinal arch, arch height, talo-first metatarsal angle, calcaneus pitch angle, and talonavicular coverage angle were all compared before and after simulated single-foot weight loading.
RESULTS
The maximum plantar stress of PCFD decreased with MCO and SJA but increased with MCF and LCL. MCF and LCL failed to significantly reduce the stress on the medial column fragments, thereby increasing their stress. Both MCO and SJA relieved medial plantar stress. MCF had no significant effect on stress relief of the medial ligament. MCO, LCL, and SJA were all shown to reduce the pressure on the medial plantar ligament, with LCL having the most obvious effect. All four procedures corrected the arch deformity; however, MCF was not as effective as the other methods. SJA is the best method for restoring arch height and correcting arch deformities. For stage IIA PCFD, isolated MCF failed to reduce pressure on the medial column; however, isolated MCO significantly reduced the pressure on the medial plantar and ligamentous soft tissues while restoring the foot's arch and correcting the hindfoot valgus.
CONCLUSION
SJA with type II sinus tarsi implant effectively transferred pressure from the medial plantar tract to the lateral side and restored the arch. Isolated LCL was not found suitable for stage IIA PCFD.
Topics: Humans; Finite Element Analysis; Foot Deformities; Foot; Ligaments, Articular
PubMed: 37741994
DOI: 10.1186/s13018-023-04216-3 -
Journal of Athletic Training May 2021Arch height is one important aspect of foot posture. An estimated 20% of the population has pes planus and 20% has pes cavus. These abnormal foot postures can alter...
CONTEXT
Arch height is one important aspect of foot posture. An estimated 20% of the population has pes planus and 20% has pes cavus. These abnormal foot postures can alter lower extremity kinematics and plantar loading and contribute to injury risk. Ankle bracing is commonly used in sport to prevent these injuries, but no researchers have examined the effects of ankle bracing on plantar loading.
OBJECTIVE
To evaluate the effects of ankle braces on plantar loading during athletic tasks.
DESIGN
Cross-sectional study.
SETTING
Laboratory.
PATIENTS OR OTHER PARTICIPANTS
A total of 36 participants (11 men, 25 women; age = 23.1 ± 2.5 years, height = 1.72 ± 0.09 m, mass = 66.3 ± 14.7 kg) were recruited for this study.
INTERVENTION(S)
Participants completed walking, running, and cutting tasks in 3 bracing conditions: no brace, lace-up ankle-support brace, and semirigid brace.
MAIN OUTCOME MEASURE(S)
We analyzed the plantar-loading variables of contact area, maximum force, and force-time integral for 2 midfoot and 3 forefoot regions and assessed the displacement of the center of pressure. A 3 × 3 mixed-model repeated-measures analysis of variance was used to determine the effects of brace and foot type (α = .05).
RESULTS
Foot type affected force measures in the middle (P range = .003-.047) and the medial side of the foot (P range = .004-.04) in all tasks. Brace type affected contact area in the medial midfoot during walking (P = .005) and cutting (P = .01) tasks, maximum force in the medial and lateral midfoot during all tasks (P < .001), and force-time integral in the medial midfoot during all tasks (P < .001). Portions of the center-of-pressure displacement were affected by brace wear in both the medial-lateral and anterior-posterior directions (P range = .001-.049).
CONCLUSIONS
Ankle braces can be worn to redistribute plantar loading. Additional research should be done to evaluate their effectiveness in injury prevention.
Topics: Ankle; Ankle Injuries; Biomechanical Phenomena; Braces; Cross-Sectional Studies; Female; Flatfoot; Humans; Male; Plantar Plate; Running; Talipes Cavus; Walking; Weight-Bearing; Young Adult
PubMed: 34000019
DOI: 10.4085/1062-6050-164-20 -
Cureus Oct 2023Flatfoot is a common condition among adults, according to orthopedic experts. Flatfoot is defined in this document as a foot condition that occurs after the completion... (Review)
Review
Flatfoot is a common condition among adults, according to orthopedic experts. Flatfoot is defined in this document as a foot condition that occurs after the completion of skeletal growth and is characterized by either partial or complete reduction of the medial longitudinal arch (MLA). The purpose of this study was to evaluate the effects of short foot exercise (SFE) and faradic foot baths on people who have flat feet. This review focused on comprehensive original primary articles written in English. Numerous studies have been conducted in order to determine the effects of both interventions. The search yielded a wide range of papers, including editorials, review articles, freely available full texts, and abstracts. The results showed that both SFE and faradic foot baths effectively improved flat feet.
PubMed: 38021688
DOI: 10.7759/cureus.47803 -
Journal of Orthopaedic Science :... Mar 2017This study describes the management of foot deformity in children. Severe congenital clubfeet treated using posteromedial release without talocalcaneal joint release...
This study describes the management of foot deformity in children. Severe congenital clubfeet treated using posteromedial release without talocalcaneal joint release were flexible and functional. Talectomy may be necessary for congenital clubfeet with arthrogryposis multiplex congenita. The diagnosis and severity of vertical talus were defined based on stress radiographs. For the deformity with spina bifida, a combination of talocalcaneal joint fusion and precise correction by soft tissue release and tendon transfer was performed. This combined surgery is effective, particularly in patients with equino-varus feet.
Topics: Arthrogryposis; Child; Child, Preschool; Clubfoot; Flatfoot; Follow-Up Studies; Foot Deformities, Congenital; Humans; Orthopedic Procedures; Radiography; Recovery of Function; Risk Assessment; Treatment Outcome
PubMed: 28081930
DOI: 10.1016/j.jos.2016.12.009 -
Children (Basel, Switzerland) Feb 2023Paediatric flexible flatfoot (PFF) is a very common condition and a common concern among parents and various healthcare professionals. There is a multitude of... (Review)
Review
Paediatric flexible flatfoot (PFF) is a very common condition and a common concern among parents and various healthcare professionals. There is a multitude of conservative and surgical treatments, with foot orthoses (FO) being the first line of treatment due to their lack of contraindications and because the active participation of the child is not required, although the evidence supporting them is weak. It is not clear what the effect of FO is, nor when it is advisable to recommend them. PFF, if left untreated or uncorrected, could eventually cause problems in the foot itself or adjacent structures. It was necessary to update the existing information on the efficacy of FO as a conservative treatment for the reduction in signs and symptoms in patients with PFF, to know the best type of FO and the minimum time of use and to identify the diagnostic techniques most commonly used for PFF and the definition of PFF. A systematic review was carried out in the databases PubMed, EBSCO, Web of Science, Cochrane, SCOPUS and PEDro using the following strategy: randomised controlled trials (RCTs) and controlled clinical trials (CCTs) on child patients with PFF, compared to those treated with FO or not being treated, assessing the improvement of signs and symptoms of PFF. Studies in which subjects had neurological or systemic disease or had undergone surgery were excluded. Two of the authors independently assessed study quality. PRISMA guidelines were followed, and the systematic review was registered in PROSPERO: CRD42021240163. Of the 237 initial studies considered, 7 RCTs and CCTs published between 2017 and 2022 met the inclusion criteria, representing 679 participants with PFF aged 3-14 years. The interventions of the included studies differed in diagnostic criteria, types of FO and duration of treatment, among others. All articles conclude that FO are beneficial, although the results must be taken with caution due to the risk of bias of the included articles. There is evidence for the efficacy of FO as a treatment for PFF signs and symptoms. There is no treatment algorithm. There is no clear definition for PFF. There is no ideal type of FO, although all have in common the incorporation of a large internal longitudinal arch.
PubMed: 36832500
DOI: 10.3390/children10020371 -
Orthopaedics & Traumatology, Surgery &... Oct 2021The aim of the present systematic literature review was to determine results and complications in subtalar arthroereisis for stage-2 adult-acquired flatfoot. (Review)
Review
INTRODUCTION
The aim of the present systematic literature review was to determine results and complications in subtalar arthroereisis for stage-2 adult-acquired flatfoot.
METHOD
A search of the PubMed, Medline, CINAHL, Cochrane and Embase databases used MeSH terms "arthroereisis" AND "flatfoot" OR "adult-acquired flatfoot" OR "pes planovalgus" OR "pes planus". Two of the authors analyzed 125 articles. After reading titles and Abstracts, 105 articles were read in full text and their references were analyzed. Finally, 12 articles were selected and divided into 2 groups: isolated and associated arthroereisis.
RESULTS
Improvement in functional scores was greater in associated arthroereisis. Whether isolated or associated, arthroereisis achieved radiologic correction. However, the rate of complications was high, mainly concerning tarsal sinus pain.
CONCLUSION
Subtalar arthroereisis for stage-2 adult-acquired flatfoot is rarely performed in isolation. When it is associated to other procedures, good radiologic and clinical results can be expected.
LEVEL OF EVIDENCE
IV.
Topics: Adult; Databases, Factual; Flatfoot; Humans; Orthopedic Procedures; Pain; Radiology; Subtalar Joint
PubMed: 34216843
DOI: 10.1016/j.otsr.2021.103002