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At least 631 records · Page 35Linked to original sources
PubMed1977

Delayed reduction of a dislocation at Lisfranc's joint: a case report.

An unusual case report of a chronic lateral dislocation at Lisfranc's joint has been presented. Immediate reduction was not performed due to inadequate diagnosis. An involvement of a peripheral neuropathy further marked the patient's symptoms. A delayed surgical reduction and arthrodesis of the tarsometatarsal joints were performed. The degree of dislocation and concomitant osseous changes that occurred over a prolonged period of time prevented excellent alignment of part of the tarsometatarsal articulations. However, a functional and asymptomatic foot was restored.

Arthrodesis↗
PubMed1984

Biomechanics of implanted joints of the foot.

Joint implants in the foot have contributed much to reducing deformity and pain. They can act as spacers to improve cosmetic appearance; they can increase or decrease motion in joints, while adding stability; and they can replace arthritic or diseased joints and reduce their associated symptoms. They cannot produce normal function of the foot. There is a great need to know more about the long-range effects of implanted joints on foot function and the associated compensations that invariably occur. This knowledge will lead to improved criteria for the existing implants and new designs and materials for the implants yet to come.

Biomechanical Phenomena↗
PubMedDate not supplied

Anatomy and biomechanics of the hindfoot.

Hindfoot function involves eccentric loading of the subtalar joint and repetitive strain of the calcaneal soft tissues. Both are induced by the serial pattern of foot support. The subtalar joint experiences rapid eversion following heel strike and subsequent inversion during terminal stance. Although these actions reduce the rotatory strain on the ankle joint, they also challenge the local soft tissues and controlling muscles. Compression and traction of the soft tissues about the heel are normal events during each walking cycle. Loading the limb at the onset of stance causes heel pad compression. Conversely, the plantar fascia and tendo Achillis are subjected to significant traction as body weight is transferred onto the forefoot during the latter half of the single limb support period. The intensity of hindfoot stress increases with the vigor of activity. Running creates symptoms that do not arise with ordinary walking. Microtrauma is cumulative. Also, the aging process reduces the ability of tissue to accommodate repetitive force.

Ankle↗
PubMed1996

Chopart's fracture dislocation: a case report and review of the literature.

The prompt identification of peri-talar dislocation with immediate reduction and early range of motion will generally result in a good outcome. Higher energy injury with greater soft tissue compromise and associated fractures worsen the prognosis. Salvage procedure for post-traumatic degenerative changes require arthrodesis for relief of pain. The deformity is usually apparent on physical examination, but occasionally is masked by marked early swelling. A high index of suspicion should be maintained with high or low energy injury to the foot and ankle with normal ankle radiographs. This particular case is unusual in that the patient was able to function as a farmer even with the fracture dislocation. This again is probably explained by his mild peripheral neuropathy. This case, however, does demonstrate the difficulty in making the diagnosis.

Adult↗
PubMedDate not supplied

[Injuries of Lisfranc's joint: severe sprains, dislocations, fractures. Study of 39 personal cases and biomechanical classification].

A study of 39 cases permitted us an analysis of the lesions of Lisfranc's joint, from severe fracture dislocation to fractures which are rarely reported in this joint. Standard XRay views seem to us insufficient and we propose carrying out oblique views and, sometimes, tomographic views. We were thus able to obtain information permitting a mechanical functional classification, and thus interpret the lesions in relation to the cause and thus adapt treatment. A long-term follow up of 23 cases suggests frequently invaliding sequelae after involvement of the tarso-metatarsal joints. The authors suggest resection and arthrodesis straightaway in dislocations.

Adolescent↗
PubMed1987

Assessment of foot movement.

A method of assessing foot movement suitable for use in clinical practice is presented. The method assesses the component of movement in the horizontal plane which is produced by rotating the calcaneum about the axis of the subtalar joint.

Foot↗
PubMed2000

Joint symmetry in early and late rheumatoid and psoriatic arthritis: comparison with a mathematical model.

OBJECTIVE: To establish a mathematical model to predict the probability of symmetry of joint involvement as a function of the number of joints involved and to compare expected with actual probabilities in psoriatic arthritis (PsA) and rheumatoid arthritis (RA) and in early and late disease. METHODS: Random involvement of joints was assumed, and the binomial theorem was used to give the frequency distribution of involved joints as a function of each joint count. Ten joint pairs were included: shoulder, elbow, wrist, metacarpophalangeal joints, proximal interphalangeal (PIP) joints of the hands, hip, knee, ankle, metatarsophalangeal joints, and PIP joints of the feet. Observed probabilities were obtained from subjects with early (duration < or =12 months) and late PsA and RA. RESULTS: The number of subjects in each of the disease subgroups was as follows: early PsA n = 33, late PsA n = 77, early RA n = 61, late RA n = 93. Observed probabilities of symmetry exceeded predicted probabilities for all disease subgroups. The median number of involved joints in each group was as follows: early PsA 4, late PsA 8, early RA 8, late RA 15 (chi2 = 95.3, 3 degrees of freedom, P = 0.0001, by Kruskal-Wallis test). After correcting for the discrepancy in the number of involved joints, no difference in joint symmetry was found between the groups (chi2 = 1.77, P = 0.62 by Friedman two-way analysis of variance). Similar results were obtained when individual hand and foot joints were analyzed separately. CONCLUSION: The pattern of joint involvement is often used to distinguish between rheumatoid and psoriatic arthritis. This study confirms that symmetry is largely a function of the total number of joints involved and that, in terms of joint pattern, differences between these disorders are more quantitative than qualitative. Both disorders have high absolute values of symmetry, particularly in the joints of the wrist and hand.

Adolescent↗
PubMed1989

Osteo-articular tuberculosis. A radiological study in a Malaysian hospital.

Various authors have reported differences in the radiological features of skeletal tuberculosis in the coloured patient. We studied retrospectively the radiographs of 71 patients with proven skeletal tuberculosis seen in our hospital, over a 6 year period. Sclerotic bone reactions and periosteal new bone formations were unusual findings but multiple bone involvement occurred about 15% of our patients. There was also a high in incidence of tuberculosis of the ankle and foot compared to that reported in white Caucasian patients.

Adolescent↗
PubMed1982

[Injuries in the Lisfranc joint (author's transl)].

132 injuries of the Lisfranc joint were reviewed in order to show methods of diagnosis and treatment. Injuries of this joint are rare. Almost one third are open fractures and/or dislocations, mostly comminuted lesions, associated with severe soft tissue trauma and so decreasing blood supply of the foot. Most dislocations and fractures can be treated conservatively by closed reductions and following fixation by means of Kirschner wires. In cases of minimal or moderate displacement closed reduction and plaster cast proved to be sufficient. Some cases of severely dislocated fractures or fracture dislocations need open reduction. Closed reduction should never be done when it probably disrupts the blood supply and so causes ischaemia. The methods of conservative or surgical treatment should guarantee best reduction and optimal stability of weight bearing areas of the foot. Operative treatment to achieve accurate reductions does not have definite advantages over conservative methods. Open reduction is recommended in all cases of delayed treatment, if blood supply is intact and the patient is young. Inveterate cases with poor results require special shoes or an orthosis and only sometimes osteotomies and other reconstructive operations.

Adolescent↗