The accessory navicular bone is one of the most symptomatic bones of the foot. Although it has been reported to be present in various members of the same family, there is a lack of knowledge about its inheritance pattern. We report two large pedigrees in which accessory ...

An accessory navicular bone is a congenital anomaly caused by aberrant ossification. Usually asymptomatic, they are relatively common in our population. They can present in several different locations, which can have an impact on the clinical presentation and the degree of dysfunction. Occasionally, these can become symptomatic, which ...

The accessory navicular is occasionally the source of pain and local tenderness over the instep. If conservative measures fail, surgical treatment may be required and the results of 62 operations to one or both feet in 47 patients are reported. Twenty-six patients were treated by the Kidner operation, in which the main insertion of the tibialis posterior ...

The accessory navicular is a known cause of foot pain. When symptomatic and conservative measures have failed, surgical intervention may be required. Simple excision of the ossicle or the Kidner procedure with transplantation of tibialis posterior tendon to the undersurface of the navicular bone may be done. ...

The role of relocation of tibialis posterior tendon insertion in the treatment of symptomatic accessory navicular and its relation to the pes planus was studied in 28 patients with symptomatic accessory navicular. Two hundred non-affected individuals were used as control. The calcaneal pitch angle measured ...

Reasons for performing study: The significance of distal border fragments of the navicular bone is not well understood. There are also no objective data about changes in thickness and proximal/distal extension of the palmar cortex of the navicular bone. Objectives: To describe the distribution of distal border ...

The results of 17 patients who had been treated by simple excision, for symptomatic accessory navicular were reviewed 2 to 5 years postoperatively. Although all patients had good or excellent results by subjective criteria, careful examination revealed difficulty in performing the "single-heel rise test" in 8 patients who also had preexisting flat feet. ...

Tarsal navicular stress fractures are a potential source of disabling foot pain in physically active individuals. The diagnosis of tarsal navicular stress fracture requires a high index of clinical and radiographic suspicion because the fracture is only rarely evident on routine radiographs or standard tomograms. The radiographic diagnosis of a tarsal ...

Failure of functional adaptation to protect the skeleton from damage is common and is often associated with targeted remodeling of bone microdamage. Horses provide a suitable model for studying loading-related skeletal disease because horses are physically active, their exercise is usually regulated, and adaptive failure of various skeletal sites is common. We performed a ...

The os supranaviculare is an accessory bone located on the dorsal aspect of the talonavicular joint close to the midpoint. This rare incidental skeletal variant has an estimated prevalence of 1%. It may rarely become symptomatic and should not be confused with cortical avulsion fractures of navicular or talar head. We present the case ...

As the navicular is unossified in infants with foot deformities, until 5 years old (boys) and 3 years old (girls), it is difficult to give the exact position of hindfoot bones. Magnetic resonance imaging associated with three-dimensional reconstruction allows the visualization of the cartilaginous volume of the bones and the ...

Authors in their a short report are presenting possibility of scaphoid reconstruction for nonunion with a modeled tricortical corticocancellous bone graft from the illiac crest after resection of pseudoarthrosis back to the healthy bone in their's own modification. This operation with the possibility of stable osteosyntesis with the use of Herbert screw ...

:295-297 Crabil MR, Chaffin MK, Schmitz DG: Ultrasonographic morphology of the bicipital tendon and bursa examination of distal interphalangeal joint, navicular bursa, navicular bone and deep digital tendon. J Equine

A 3-month-old Quarter Horse filly stepped on a fence staple and developed navicular bone osteomyelitis of the right hindfoot. A 1.5-cm spherical portion of medullary cavity containing purulent material was debrided and flushed with 0.9% NaCl solution. Cancellous bone was collected from a caudal sternebra and placed into the defect. The ...

BackgroundThe navicular drop test is a measure to evaluate the function of the medial longitudinal arch, which is important for examination of patients with overuse injuries. Conflicting results have been found with regard to differences in navicular drop between healthy and injured participants. Normal values have not yet been established as foot length, ...

Navicular stress fractures mainly occur in sprinting and push-off athletes. Numerous predisposing factors have been implicated in their development. Within a six-week interval in the summer of 2009, twin brothers, both elite track and field athletes, presented to us with medial foot pain. Plain radiographs were negative but a radioisotope bone scan and CT ...

Navicular bones from 74 horses were examined at necropsy. Animals ranged in age from eight months to 30 years. Eight horses had a clinical history of navicular disease. Degenerative lesions in the fibrocartilaginous surface of the navicular bone and of the surface of the deep flexor tendons ...

Disclosed are compositions of bone accessory cells and methods for their preparation and use. Bone accessory cells are cells which are not hematopoietic and which can reconstitute the expression of bone proteins by human bone cells and support ex vivo exp...

The following case is presented to illustrate the roentgenographic and clinical findings of a condition of interest to the orthopaedic surgeon. The initial history, physical findings, and roentgenographic examinations are found on this page. The clinical and roentgenographic diagnoses are presented on the following pages. PMID:7885727

...2011-04-01 2011-04-01 false Bone cutting instrument and accessories. ...DEVICES Surgical Devices § 872.4120 Bone cutting instrument and accessories. (a) Identification. A bone cutting instrument and...

Navicular bones from the 4 limbs of 95 horses, classified in 9 categories, were studied. The anatomical bases were established for the morphometry of the navicular bone and its variations according to the category of horse, after corrections were made for front or rear limb, sex, weight, size and age. In ponies, ...

Navicular bones from the 4 limbs of 95 horses, classified in 9 categories, were studied. The anatomical bases were established for the morphometry of the navicular bone and its variations according to the category of horse, after corrections were made for front or rear limb, sex, weight, size and age. In ponies, ...

The navicular drop in the sagittal plane on weight-bearing is a valid indicator of foot pronation. Dislocation of the talus on the tarsal mechanism results in hyperpronation, which can lead to excessive navicular drop. The purpose of the present study was to radiographically determine the efficacy of HyProCure(�) in realigning the ...

Objective: Research suggests that excessive pronation of the foot contributes to the incidence of anterior cruciate ligament (ACL) tears by increasing internal tibial rotation. Studies have documented greater navicular drop values in individuals with a history of an ACL tear using methods that may not accurately follow the motion of underlying bone. The ...

Reasons for performing study: Diagnostic navicular bursoscopy has been described in limited cases. Review of greater numbers is needed to define its contribution to case management and prognostic values. Objectives: To report: 1) clinical, diagnostic and endoscopic findings in a series of cases, 2) surgical techniques and case outcomes and 3) prognostic values. The authors ...

It was hypothesised that in solar bone images of the front feet of clinically normal horses, or horses with lameness unrelated to the front feet, there would be less than a 10% difference in the ratio of uptake of radiopharmaceutical in either the region of the navicular bone, or the region of insertion of the deep digital flexor ...

The wrist is a frequent site of arthropathy in the pseudogout syndrome (calcium pyrophosphate dihydrate crystal deposition disease). Three cases of severe wrist arthropathy are presented to emphasize the destructive changes which may occur, including necrosis or collapse of the lunate and navicular bones. The roentgenographic findings characteristic of ...

Background:Lower limb injuries are a large problem in athletes. However, there is a paucity of knowledge on the relationship between alignment of the medial longitudinal arch (MLA) of the foot and development of such injuries. A reliable and valid test to quantify foot type is needed to be able to investigate the relationship between arch type and injury likelihood. Feiss Line is a valid clinical ...

Macrophages: important accessory cells for reproductive function Paula E. Cohen,* Kayoko Nishimura functions, can be considered as essential accessory cells for normal reproductive functioning. J. Leukoc of the bone marrow, monocytes, macrophages, osteoclasts, and microglia. Cells of the reproductive tract also

A 19-year-old, white female, college freshman cross-country runner presented to the athletic training center complaining of bilateral plantar foot pain 1 week into the cross-country season. She had been treated for bilateral plantar fasciitis twice in the previous 3 years, and initial evaluation suggested a recurrence. A failure to respond to treatment led us to suspect other causes. Subsequent ...

Stress fractures of the tarsal navicular bone are a challenge in diagnosis and therapy. First and foremost you have to think about this fracture. The origin of the injury can be detected in a wrong or too heavy strain of the bone especially in long distance runners and recruits. The MRI is the diagnostic tool of first choice. Therapy ...

Stress fractures of the tarsal navicular, first described in 1970, were initially thought to be rare injuries. Heightened awareness and increased participation in athletics has resulted in more frequent diagnosis and more aggressive treatment. The vascular supply of the tarsal navicular results in a relatively avascular zone in the central one-third, which ...

Magnetic resonance (MR) imaging is often performed to determine the cause of palmar heel pain. We evaluated how distension of the navicular bursa affected the MR appearance of the navicular bursa and associated structures. An MR evaluation was performed on normal cadaver limbs and cadaver limbs from horses with lameness localized to the foot. The normal ...

IntroductionSesamoids are ovoid bones with variable size and shape in the course of tendons, can be found in different parts of skeletal system.Case presentationWe report a case of 61-year-old woman in whom we observed a large accessory bone located in the anterior aspect of the left ankle joint. Since such ...

INTRODUCTION: Exhaustive biometric data of the talus and the navicular bones have not been reported in the classical anatomy treatises. HYPOTHESIS: The radiographic measurements, being variable according to the X-ray beam inclination, have no real value. This biometric analysis aimed to specify the characteristics of the constitutive ...

The trabeculae of the cancellous bone are formed along the direction of the lines of stresses to which a bone is subjected. The talus sustains the weight of the body and transmits the weight in different directions (i.e., the calcaneus and navicular). The aim of the present study was to investigate the architecture of the cancellous ...

disease were used in the study. All were riding horses: 1 Warmblood, 2 Thoroughbreds, 2 Thoroughbred landmarks, identified from inflexions on the Fy curve (Dow et al. 1991). Paired t tests were performed to local analgesia have been performed on normal horses (Keegan et al. 1997; Drevemo et al. 1999) and those

... member 2 foot bones of the oldest South African hominid. Science 269:521�524. CrossRef, PubMed, CSAConroy, G. ... Lovejoy, D. C. Johanson, and Y. Coppens. 1982. Hominid tarsal, metatarsal and ... hominoi...

Differential diagnosis of foot and ankle injuries should include (1) stress fractures of the great toe sesamoids, the shaft of the fifth metatarsal, and the tarsal navicular bone; (2) transchondral talar-dome fractures; (3) fractures of the os trigonum; and (4) dislocating peroneal tendons. Diagnosis of these injuries is challenging because the initial ...

We describe the clinical and radiological manifestations of the Jackson-Weiss syndrome (JWS) in a large South Australian kindred. Radiological abnormalities not previously described in the hands include coned epiphyses, distal and middle phalangeal hypoplasia, and carpal bone malsegmentation. New radiological findings in the feet include coned epiphyses, hallux valgus, ...

This is a cadaveric study on the safety and efficacy of talonavicular arthroscopy in arthroscopic triple arthrodesis. Talonavicular arthroscopy was performed in 18 feet of 9 fresh frozen cadavers. The specimens were divided into 3 groups (6 feet in each group). The articular cartilage of the talar and navicular facet was abraded with a hemostat through the dorsolateral portal ...

The presence of accessory foramina and canals in the mandible is frequently overlooked in clinical procedures. It is important to note that these anatomical variations may only be pre-surgically detected on imaging exams, and such detection may directly influence therapeutic success. We describe a previously unreported case of accessory mental foramen ...

BACKGROUND: Surgical resection of calcaneo-navicular coalition (CNC) with interposition of fat or muscle graft is indicated when there is failure of conservative treatment. OBJECTIVES: to evaluate the clinical and functional of outcome of a new mini-invasive technique for resection of CNC and interposition of synthetic graft. METHODS: This is a prospective case series study on ...

Arthroerisis of the subtalar joint can be a valuable tool for the foot and ankle surgeon in treating flexible pes planus deformity in adults, as well as in children. Whether by itself, or in conjunction with other procedures, such as Achilles tendon lengthening (to allow dorsiflexion to at least neutral), midfoot or hindfoot osteotomies (to correct significant bony deformities), and posterior ...

Navicular disease is characterized by a progressive degenerative alteration of the equine podotrochlea. In this study, we refined a previously identified quantitative trait locus (QTL) on horse chromosome 10 for the abnormal development of canales sesamoidales (DCS) of the navicular bone in Hanoverian warmblood horses. Genotyping was ...

Fibrocartilage degeneration is the earliest pathologic finding in navicular disease but remains difficult to detect, even with magnetic resonance (MR) imaging. We hypothesized that injection of the navicular bursa with saline would improve accuracy of MR imaging evaluation of palmar fibrocartilage. Thoracic limbs were collected from 11 horses within 6 h of ...

The purpose of this study was to investigate the effects of four lacing patterns (one regular, one tight, and two seven-eyelet lacings) on dorsal foot pressures during running and the perception of comfort and stability with 14 male rearfoot runners. By using a pressure insole, peak dorsal pressures were measured under the shoe's tongue. Highest peak pressures were found above the talus, the ...

The trajectories of skin-mounted markers tracked with optical motion capture are assumed to be an adequate representation of the underlying bone motions. However, it is well known that soft tissue artifact (STA) exists between marker and bone. This study quantifies the STA associated with the hindfoot and midfoot marker clusters of a multi-segment foot ...