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At least 145 records · Page 8Linked to original sources
PubMed1993

[Involvement of the foot in reactive arthritis. A retrospective study of 105 cases].

The foot is among the sites most often affected in spondyloarthropathies, whose diagnostic criteria include heel pain and sausage-like swelling of the toes. Few studies have systematically analyzed foot manifestations in reactive arthritides. We retrospectively reviewed 143 patients fulfilling Amor's criteria. One hundred five patients (73%) exhibited inflammatory involvement of one (n = 47) or both feet. In 8 cases no other articular sites were affected. Heel pain was reported by 36% of patients (52/143), within the first six months in half the cases. Both heels were painful in 26 patients. Heel pain was plantar in 36 cases, posterior in 7 cases, and bipolar in 4 cases. Roentgenographic calcaneal changes were found in 54 cases overall but in only 31 of the patients with heel pain. Sixteen patients had asymptomatic calcaneitis. Seventeen patients had involvement of the transverse tarsal joint, usually with no other affected joints. Involvement of the subtalar joint was rare (6 cases). Metatarsophalangeal manifestations were found in 44% of patients (64/143) and were symmetrical in 17 cases; 17 patients had changes of the great toe suggestive of gout. Interphalangeal arthritis was seen in 22% (32/143) of cases; in half these cases the first two rays were affected and sausage-like digital swelling was seen in 28 patients (20%). Permanent roentgenological damage was uncommon.

Adult↗
PubMed1996

Are kinematics of the walk related to the locomotion of a warmblood horse at the trot?

In purchase examinations or at studbook selection sales the locomotor apparatus of horses is judged both at walk and trot. To evaluate whether kinematics of the walk are related to the locomotion at the trot, fore and hind limb movements of a group of 24 26-month-old warmbloods were recorded at walk and trot on a treadmill (1.6 and 4 m/s) using a modified CODA-3 gait analysis system. The intralimb coordination patterns at walk and trot were compared, and temporal and spatial variables of these gaits were related. Stride and stance durations (s) were shorter at the trot, while the stance distance (m) and swing duration (s) remained the same. Moreover, the pattern of the joint angle-time curves at walk and trot looked rather similar, though shifted to the left at trot because of the shorter relative stance duration. During the stance phase, the shoulder, stifle and tarsal joints were more flexed throughout, while the carpal and fetlock joints were more maximally extended in the trot than in the walk. In the swing phase, the elbow, carpal, stifle, and tarsal joints were more flexed because of the higher 'operating' speed at the trot compared to the walk. All other kinematic variables at the trot could be predicted from the mean +/- lsd of the values recorded at the walk. Moreover, nearly all kinematic variables at the walk correlated well with those at the trot, while variables indicating gait quality of the walk were similar to the ones identified previously for the trot. In conclusion, kinematics recorded at the walk in a group of horses were similar to and thus predictive for locomotion at the trot providing the decreased stance duration and the increased speed of the trot are taken into consideration.

Animals↗
PubMed2000

Hock lesions and free-stall design.

We compared the prevalence and severity of skin lesions on the hocks of lactating dairy cows in southern British Columbia, comparing 20 farms using three common bedding surfaces: sawdust, sand, and geotextile mattresses. Skin lesions were scored at five positions on the hock. For each position we noted if the lesion showed inflammatory attributes, and then assigned a severity score. Of the 1752 lactating cows scored, 1267 cows (73%) had at least one hock lesion. Of those cows with lesions, 87% had lesions on both legs, 76% had lesions on more than one location on the hock, and 78% had a lesion of at least moderate severity (i.e., evidence of skin breakage or an area of hair loss >10 cm2). Lesions were most prevalent on farms that used geotextile mattresses (91% of cows) and least common on farms that used sand (24% of cows). Moreover, lesions on cows from farms using mattresses were more numerous and more severe than those on cows from sand-bedded farms. The prevalence and severity of lesions on farms using sawdust was intermediate. Lesions also varied in relation to location on the hock. For farms using geotextile mattresses, lesions were more common and more severe on the lateral surfaces of both the tuber calcis and the tarsal joint. On farms using sawdust, lesions were common on the dorsal surface of the tuber calcis and the lateral surfaces of both the tuber calcis and the tarsal joint. Lesions were rare on all five positions for cows from sand-bedded farms. Among the 10 farms sampled using sawdust, we found a significant negative relationship between the length of the stall and severity of lesions. For cows with lesions, the number and severity of lesions increased with age.

Animals↗
PubMed1988

Foot and ankle biomechanics in walking and running. A review.

The biomechanics of the foot and ankle are initially discussed, as a series of isolated joints and segments, and subsequently as an integrated unit during the functional activities of walking and running. The kinematics and kinetics of the foot and ankle during the three major components of stance phase are reviewed. The first component, between foot contact and foot flat, is characterized primarily by force absorption. The portion of the gait cycle between foot flat and heel off is associated with controlled forward progression of the center of mass and maximum mobility of the transverse tarsal joint. In the third phase, supination of the foot results in increased rigidity of the transverse tarsal joint, and therefore improved force transmission. The controversy regarding the function of the triceps surae during this phase of the gait cycle is discussed.

Ankle↗
PubMed2002

Effect of trotting speed, load and incline on hindlimb stance-phase kinematics.

The objective was to understand how the stance-phase kinematics of the hindlimb of trotting horses change with speed under 3 conditions (level, loaded and incline), to compare our results with the predictions of the spring-mass model and to help focus our future studies of muscle function. Video recordings were made of 5 Arabian horses trotting on a treadmill. Five consecutive strides were digitised and averaged for each trial. The angle-time diagrams were qualitatively similar to those reported previously. As speed increases, the range of motion of the hindlimb increases, as predicted by the spring-mass model. This is the result of increased range of motion in the coxofemoral and tarsal joints. The hindlimb does not 'land short-take off long'. When trotting up an incline, the hindlimb undergoes a greater range of motion because of increased retraction resulting from increased extension of the coxofemoral joint. At hoof contact on an incline, the 3 proximal joints are more flexed than on the level. Carrying a load had no effect on kinematics. These results suggest that there may be larger changes in strain with speed in muscles acting at the coxofemoral and tarsal joints than at the femorotibial joint, and that locomotion up an incline will change muscle strain more than carrying a load.

Animals↗
PubMed1988

Lesion of the ligamentum bifurcatum in ankle sprain.

In a consecutive study of 106 patients with a history of ankle sprain, 40.5% showed clinical signs of damage to the ligamentum bifurcatum of the midfoot. A significantly larger percentage of these patients complained of maximum tenderness localized to the instep compared with the patients without signs of damage to the ligamentum bifurcatum (P less than 0.001). Radiologic examination revealed 20 lesions related to damage to the ligamentum bifurcatum: laxity in the transverse tarsal joint, 12; avulsion from the anterior process of the calcaneus, 5; avulsion from the cuboid, 2; avulsion from the navicular, 1. The clinical importance of these findings is debatable. Previous investigations have revealed hypermobile ankles in patients with laxity in the transverse tarsal joint, as well as long convalescence time and risk of nonunion in patients with fractures of the anterior process of the calcaneus. It is therefore recommended that patients with a history of ankle sprain be evaluated concerning damage to the ligamentum bifurcatum of the midfoot.

Adolescent↗
PubMed2001

[A case of chronic erosive polyarthritis which developed 14 years after an intestinal bypass operation with subsequent remission by intestinal revision].

A 38-year-old female patient developed the symptoms and signs of arthritis in the right tarsal joint for the first time after 14 asymptomatic years following an ileo-colic intestinal bypass operation which had been performed as an emergency procedure for acute ileus due to intestinal adhesions caused by the previous abdominal surgery. Her arthritis took a progressively severe course thereafter, primarily involving the joints of both lower extremities, and 13 years after the onset of symptoms she still continued to have active polyarthritis. However, no concomitant skin lesions of any form had been recognized throughout the course of the arthritis. On the articular radiographs erosive changes were evident in the right tarsal joints and also in the MTP joints of both big toes. Laboratory examinations of the serum revealed negative results for rheumatoid factor, circulating immune-complexes, anti-nuclear antibodies, and anti-DNA antibodies, while the serum level of CRP as well as the erythrocyte sedimentation rate were elevated. Other routine laboratory tests were all unremarkable, and neither HLA-B 27 nor HLA-DR 4 were positive. Therapeutic drug regimens consisting of NSAIDs, oral as well as intraarticular steroids, DMARDs, methotrexate, and combinations of these drugs were unsuccessful in controlling the severe symptoms of the arthritis. In view of this, a revision operation of intestinal bypass was performed 13 years after the onset of the arthritis. After the revision the severe pain of the arthritis began to subside gradually, and 1 year and 6 months later the patient achieved complete remission of the arthritis, and her CRP and ESR values returned to normal.

Arthritis↗
PubMedDate not supplied

A three-dimensional study of calcaneonavicular tarsal coalitions.

The authors studied 37 presumed calcaneonavicular tarsal coalitions from the Hamann-Todd Osteological Collection at the Cleveland Museum of Natural History. The anatomy of the coalitions and the associated subtalar and transverse tarsal joints was quite variable. The coalitions in 8 specimens completely spared the anterior facet of the calcaneus and in 7 specimens it was partially replaced by the navicular portion of the coalition, whereas in 22 specimens the anterior calcaneal facet was completely replaced by the navicular portion of the coalition. The authors suggest that the pathoanatomy of calcaneonavicular coalitions is not uniform and may involve the subtalar and transverse tarsal joints. This may have clinical relevance and contribute to the unsatisfactory results in feet undergoing coalition resection and soft tissue interposition.

Adolescent↗
PubMed1999

Hind limb skeletal lesions in 12-month-old bulls of beef breeds.

In the present study, right hind limb bones from 46 12-month-old bulls with no clinical signs were examined to identify and describe lesions that could predispose the stifle and tarsal joints to osteoarthritis. The bulls came from a performance testing station and were slaughtered due to a low index at the end of the testing period 1996-97. Differences in frequency of lesions among breeds as well as the relationship between lesions and growth rate were evaluated. Forty-five (97.8%) of the 46 bulls had lesions in the joints and/or growth plates. Prevalence of lesions was 100% in the Charolais (22/22), the Hereford (8/8), and the Limousin (4/4) breeds, and 85.7% (6/7) in the Simmental breed. The stifle was affected in 37, the tarsus in 33, and the growth plates in 34, of the 46 bulls. Lesions found in the stifle joint were: osteochondrosis of the articular-epiphysical cartilage complex (AECC) (25), subchondral bone cyst of the distal femur (1), fragmentation of the medial intercondylar eminence of the tibia (20), cleft in the distal part of the patellar groove (28), and an avulsion fracture of the lateral condyle together with a partial tear of the cranial cruciate ligament (1). Lesions found in the tarsal joint were: osteochondrosis of the AECC (23), ulcerative lesions of the articular cartilage of the talus (25), and fracture of the medial malleolus (4). Twenty-eight bulls had lesions of osteochondrosis at the AECC and 37 at the growth plates. When osteochondrosis at the AECC and thickening of the growth plates were combined, 44 of the 46 bulls had at least one lesion at the AECC and/or the growth plate. Prevalence of bulls with at least one lesion was similar between breeds, but the number of lesions per bull was significantly higher in Charolais followed by Simmental, Hereford, and Limousin. Number of lesions per bull was significantly correlated with daily weight gain, carcase weight, and the width of the proximal tibial epiphysis. Lesions were statistically independent, indicating that local biomechanical factors within the joints are important in the pathogenesis. In conclusion, we suggest that the high incidence of hind limb osteoarthritis reported in the Swedish beef bull population can be explained by the high prevalence of skeletal lesions found in the present material. The lesions appeared to be related to high growth rate and to the breed.

Abattoirs↗
PubMed1996

Kinematic gait analysis in dogs with hip dysplasia.

OBJECTIVE: To define alterations of movement in dogs with hip dysplasia by use of noninvasive, 3-dimensional, computer-assisted kinematic gait analysis. DESIGN: Kinematic and force plate data were collected at the trot from clinically normal dogs and from dogs with hip dysplasia. ANIMALS: 12 large adult dogs of various breeds with clinical and radiographic evidence of hip dysplasia, and 12 clinically normal adult large dogs of various breeds with body weight similar to that of the dogs with hip dysplasia. PROCEDURE: Dynamic flexion and extension angles and angular velocities were calculated for the coxofemoral, femorotibial, and tarsal joints. Temporal and distance variables were also computed. Essential Fourier coefficients were determined and used to reconstruct mean dynamic flexion and extension curves for all joints, and to compare differences in movement between dogs with hip dysplasia and clinically normal dogs. RESULTS: Dogs with hip dysplasia had subtle characteristic changes in dynamic flexion and extension angles and angular velocities of each joint, verified by significant differences in essential Fourier coefficients between the 2 study groups. Stride length was increased and peak vertical force was decreased in dogs with hip dysplasia. Subject velocity, maximal foot velocity, stance duration, stride frequency, and impulse area did not differ between the 2 groups. CONCLUSIONS: Kinematic gait analysis indicated that hip dysplasia is associated with alterations in movement of the coxofemoral, femorotibial, and tarsal joints. Computer-assisted kinematic gait analysis provided a noninvasive, objective tool with which to evaluate these complex motion alterations. CLINICAL RELEVANCE: The information obtained may be useful in future evaluations of various modes of treatment for hip dysplasia.

Animals↗
PubMed2004

Musculature of the crus and pes of the African elephant (Loxodonta africana): insight into semiplantigrade limb architecture.

The limbs of elephants are designed to support the weight of the largest terrestrial animal, and they display unique morphological peculiarities among mammals. In this article we provide a new and detailed anatomical description of the muscles of the lower hindlimb in African elephants (Loxodonta africana), and we place our observations into a comparative anatomical as well as a functional morphological context. At the cranial aspect of the shank (crus) and the foot (pes), the flexors of the tarsal joint and the extensors of the toes form a flat muscular plate covering the skeletal elements. Caudal to the tibia and the fibula the Musculus (M.) soleus is strongly developed, whereas the M. gastrocnemius and the M. flexor digitorum superficialis are thin. Small flexors, adductors, and abductors of the toes are present. The M. tibialis caudalis as well as the Mm. fibularis longus and brevis mainly support the tarsal joint. The design of the muscular structures matches the specific requirements of heavy-weight bearing as well as of proboscidean limb posture and locomotion patterns.

Animals↗
PubMed1984

Bilharzial arthropathy.

The joints of 124 young adult patients with bilharziasis were examined. Heels, sacroiliac joints, cervical spine, knee joint, dorsal spine, and tarsal joints were affected. Biopsy of the knee synovia showed synovitis, vasculitis, and the presence of bilharzial ova in three cases. Radiologically the heels and sacroiliac joints showed inflammatory changes. Schistosomiasis may cause an arthropathy.

Adolescent↗
PubMed1996

New method of studying joint kinematics from three-dimensional reconstructions of MRI data.

A new method of measuring the kinematic parameters of joints has been developed. This article describes the procedure, using tarsal joints as examples. The method uses the technique of computerized three-dimensional reconstruction from magnetic resonance images, taken at regular intervals throughout a foot's range of motion. From these reconstructions, various kinematic information, such as orientation of instantaneous axes, amounts of rotation, amounts and direction of translation, and bony contact areas, is derived. The method is noninvasive and can be applied to individual subjects or patients.

Biomechanical Phenomena↗
PubMed2003

Diagnostic and therapeutic injection of the ankle and foot.

Joint and soft tissue injection of the ankle and foot region is a useful diagnostic and therapeutic tool for the family physician. This article reviews the injection procedure for the plantar fascia, ankle joint, tarsal tunnel, interdigital space, and first metatarsophalangeal joint. Indications for plantar fascia injection include degeneration secondary to repetitive use and traumatic injuries that are unresponsive to conservative treatment. Diagnostic aspiration or therapeutic injection of the ankle or first metatarsophalangeal joints can be performed for management of advanced osteoarthritis, rheumatoid arthritis, and other inflammatory arthritides such as gout, or synovitis or an arthrosis such as "turf toe." Persistent pain and disability resulting from tarsal tunnel syndrome, an analog of carpal tunnel syndrome of the wrist respond to local injection therapy. A painful interdigital space, such as that occurring in patients with Morton's neuroma, is commonly relieved with corticosteroid injection. The proper technique, choice and quantity of pharmaceuticals, and appropriate follow-up are essential for effective outcomes.

Adrenal Cortex Hormones↗
PubMedDate not supplied

Injuries to the midtarsal joint and lesser tarsal bones.

Injuries to the midtarsal joint and lesser tarsal bones occur relatively infrequently and often present with a benign appearance on imaging studies. These facts may lead to failure of diagnosis and/or inadequate and improper treatment, with subsequent disability for the patient. The clinician with a general knowledge of the various injury patterns to the midfoot is able to approach these injuries rationally and with an appreciation of their potential severity. This article reviews the mechanism, clinical and radiologic presentation, and treatment of midtarsal joint injuries and midfoot fractures.

Foot Injuries↗
PubMed1991

Results of arthrodesis of the tarsus: talocalcaneal, midtarsal, and subtalar joints.

A 10-year prospective study was carried out on arthrodesis surgery of the major tarsal joints of the foot. The guiding principle of the study was that foot symmetry would be preserved, except where both feet were deformed. Correction in the frontal, coronal, and sagittal planes would be used to restore normal talocalcaneal relationships. In patients with normal relationships, triple, subtalar (talocalcaneal), and isolated tarsal arthrodesis would be carried out by iliac-crest-inlay grafting to preserve tarsal relationships. In 41 patients, 47 arthrodeses were carried out. There were 31 triple arthrodeses, 10 talocalcaneal fusions, four talonavicular fusions, and two naviculocuneiform fusions. In patients with deformity, significant improvement in the angles of anteroposterior talocalcaneal divergence and lateral talocalcaneal convergence was recorded. There were 27 good results, 15 fair results, and five poor results. Supplementary bone grafting and the use of internal fixation improved the rate of arthrodesis.

Adolescent↗
PubMed1988

Neuroarthropathy associated with chronic alcoholism.

Neuroarthropathy involving the feet is seen most commonly in patients with diabetes mellitus. Chronic alcoholism has been implicated as a cause of neuroarthropathy, but many alcoholics have coexistent diabetes mellitus, which may not be detected by measuring blood glucose levels alone. We report five chronic alcoholic patients with neuroarthropathic alterations of the feet in whom coexistent diabetes mellitus was excluded by using laboratory methods that are more sensitive than those employed in previously reported series of alcoholic neuroarthropathy. The radiographic features of neuroarthropathy in our five cases consisted of hypertrophic changes at the tarsal joints in four, bony fragmentation at the tarsal and metatarsal regions in three, fracture dislocation at the tarsometatarsal joint in two, and multiple pathologic fractures in one. We conclude that alcoholism can result in neuroarthropathy in the absence of diabetes mellitus.

Adult↗