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PubMed2005

Slipper cast management of emergency foot problems.

Foot conditions are frequently seen in the emergency department. In many cases, although weight bearing is painful, it is not precluded, per se. When a soft dressing does not provide sufficient support, a below knee walking cast may be applied. We present an alternative dressing that may be of benefit in selected foot injuries. The dressing is fashioned with cast padding, foam sheeting and plaster. It is designed and molded to fit like a slipper. The plaster slipper has distinct advantages in that it is comfortable, lighter for the patient, and avoids the problem of ankle stiffness. We believe that this option is underused in the emergency setting.

Ankle↗
PubMed2000

[A typical snowboarding injury--fracture of the processus lateralis tali].

Before the development of the snowboard sport, the fracture of the lateral process of the talus was a very rare injury. Since the increasing popularity of snowboarding, starting in Europe at about 1980, these fractures occurred more frequently. The largest epidemiological serie from Kirkpatrick in 1998 reports an incidence of 2.3% of all snowboarding injuries representing 15% of all snowboarding ankle injuries [1]. The common mechanism for fracture is dorsiflexion of the ankle and inversion of the hindfoot. Early diagnosis is emphasized in all series reviewed in the literature to prevent long-term complications [4]. Because routine radiographs failed to determine either the size or comminution of the fractured process, CT imaging was used to accurately assess the size, displacement, and comminution of the fractured process. CT scans also showed the extent of subtalar joint involvement, any associated tendon pathology, or additional fractures [5]. Many of these fractures are not visible on plain radiographs and require computed tomography imaging to be diagnosed. Diagnosis of this fracture pattern is paramount; the physician should be very suspicious of anterolateral ankle pain in the snowboarder, where subtle fractures that may require surgical intervention can be confused with anterior talofibular ligament sprains [1]. Most authors agree, that nondisplaced fractures are best treated with cast immobilization and that displaced fractures require a surgical treatment: Single large displaced fragments are reduced and internally fixed, small displaced or comminuted fragments may need surgical excision. After two to three days bedrest with elevated leg, ambulation is started under partial weight bearing of 10-15 kg for 6 weeks. Physicians caring for snowboarders should look specifically for fracture of the lateral process of the talus in a snowboarder with a lateral ankle or foot injury [3]. This fracture can mimic a lateral ankle sprain, yet the fracture is easily missed on plain radiographs of the ankle. Because displaced or comminuted fractures can cause long-term disability, primary care physicians and specialists alike need to be aware of the association of this fracture with snowboarding [3].

Athletic Injuries↗
PubMed1991

The Thermocross: a simple tool for rapid assessment of thermal sensation thresholds.

We have developed the Thermocross, a simple device for rapid assessment of thermal sensitivity, tested it on healthy subjects and diabetic patients and evaluated its use in identifying patients whose sensation loss may expose them to the risk of neuropathic foot injury. Thermal discrimination deteriorated with age (P less than 0.001) in healthy subjects, but all the controls could detect a temperature difference less than or equal to 10 degrees C. In diabetic patients, the deficit in thermal sensation detected by the Thermocross paralleled the decline of nerve conduction. Thermocross thermal sensation was impaired in 87% of 38 ulcerated feet of 26 diabetic patients. We conclude that the Thermocross is a suitable tool for screening for sensation loss and that diabetic patients with impaired thermal sensation are vulnerable to ulceration. The Thermocross could also serve a useful educational purpose, the implications of reduced thermal sensation probably being more meaningful to patients and health care personnel than those of a reduction in the traditionally tested vibration sensation.

Diabetes Mellitus, Type 1↗
PubMed1990

The tuning fork revisited.

The performance of the Rydel-Seiffer graduated tuning fork was examined in healthy subjects and in various groups of diabetic patients in order to evaluate its efficacy for identifying patients whose loss of vibration sensation may expose them to the risk of foot injury. Vibration perception score measured with the tuning fork declined with age (p less than 0.001) in the control subjects. It correlated well (r = -0.90, p less than 0.001) with the thresholds obtained with an electromagnetic instrument (Vibrameter) in diabetic patients, in whom vibration perception score was impaired compared with control subjects (4.0 +/- 1.8 (+/- SD) vs 5.4 +/- 1.4, p less than 0.001). Age-related Rydel-Seiffer tuning fork vibration sensation was impaired in 79% of 38 ulcerated feet of 26 patients. The tuning fork score was less than or equal to 4.0 in 95% of the ulcerated feet. We conclude that the Rydel-Seiffer graduated tuning fork is a suitable tool for screening for sensation loss and that diabetic patients with a tuning-fork score of less than or equal to 4.0 are vulnerable to ulceration.

Aged↗
PubMedDate not supplied

Magnetic resonance imaging in the evaluation of sports injuries of the foot and ankle: a pictorial essay.

Magnetic resonance imaging is playing an increasingly important role in evaluation of the injured athlete's foot and ankle. Magnetic resonance imaging allows accurate detection of bony abnormalities, such as stress fractures, and soft-tissue abnormalities, including ligament tears, tendon tears, and tendinopathy. The interpreter of magnetic resonance images should systematically review the images, noting normal structures and accounting for changes in soft-tissue and bony signal.

Ankle Injuries↗
PubMed1994

Reconstruction of the foot with microvascular free flaps.

Reconstruction of the foot using microvascular flaps has been widely performed in the last 15 years but the choice of flap to repair some areas in the foot remains controversial. We present a series of 128 free flaps to the foot performed during the period of 1975-1990. One hundred and seventeen had a successful outcome (91%). The etiology of the problem was traumatic in 94, congenital in 10, tumor in 9, and chronic ulcerations due to vascular problems in 15. The indications for a specific flap depended on the site and extension of the foot problem, and were divided into four groups: 1. Dorsum of the foot. Cutaneous parascapular flap was the best choice. 2. The sole-weight-bearing area. We favored the use of the latissimus dorsi muscle flap covered with a split thickness skin graft, done immediately. A proper tailoring of the flap and postoperative care by the patient are very important to maintain the result without ulceration. Tactile sensation does not seem to be essential. 3. The area over the calcaneus tendon. We have used cutaneous flaps such as the parascapular and lateral arm flap or fascial flaps covered by split thickness skin grafts (STSG). The fascia used were the serratus or the parascapular. 4. Complex trauma problems with extensive skin loss or chronic ulcerations due to vascular diseases: the latissimus dorsi musculocutaneous or muscle plus STSG was mostly used. The overall number of donor areas were 5 groins, 48 parascapular, 2 gluteal fold flaps, 4 lateral arm, 61 latissimus dorsi, and 8 fascial flaps.

Foot↗
PubMed1994

Present status of replantation in Japan.

We conducted a survey among 94 members of the Japanese Society of Reconstructive Microsurgery on the present status of replantation in Japan. The results indicate that 9,664 extremities were replanted (157 upper arms, 415 forearms, 471 hands, 8,320 digits, 33 thighs, 103 calves, 37 feet, and 128 toes); 8,227 replants survived, for a success rate of 85%. The survival rate was over 90% in 23 hospitals, and 7 of these hospitals replanted more than 100 limbs. Postoperative treatment consisted of continuous intravenous infusion of urokinase (120,000-240,000 U/day), heparin (10,000-20,000 U/day), and prostaglandin E1 (80-120 micrograms/day) for 3-10 days. Fifty-six surgeons attempted replantation whenever the patient requested it. At Nara Medical University, continuous local intra-arterial infusion of anticoagulants and fibrinolytic agents has increased the survival rate of the replantation to 97%, compared with 88% when using intravenous infusion.

Alprostadil↗
PubMed2004

Change of weight-bearing pattern before and after plantar reconstruction with free anterolateral thigh flap.

We reconstructed a large-sized defect at the weight-bearing plantar region by a free anterolateral thigh flap successfully. This is the first case report of using the anterolateral thigh flap for reconstruction of the plantar foot. Based on the preoperative and postoperative pedogram examinations, the pressure distribution on the weight-bearing area reconstructed by the transferred flap was obviously improved and demonstrated a nearly normal pattern. No previous report has compared the weight-bearing pattern before and after large plantar reconstruction with a free flap. The anterolateral thigh free flap, which provides adequate bulk and contour of the foot, and which withstands weight pressure and shearing force and has the ability to provide recovery of sensation, is considered a good alternative in covering a large weight-bearing plantar defect.

Cicatrix↗
PubMed2006

Cross-leg free anterolateral thigh perforator flap: a case report.

The purpose of this report is to introduce the cross-leg anterolateral thigh perforator flap for closure of a defect on the dorsum of the foot, and to show that the anterolateral thigh perforator flap is a safe option for a cross-bridge microvascular anastomosis in defects of the extremity. The free anterolateral thigh perforator flap was used for a patient with an unhealed wound on the dorsum of the foot. The flap was revascularized by end-to-side anastomosis between the flap's artery and the posterior tibial artery of the other leg, since there was no available recipient artery on the same leg. After a 4-week neovascularization period, the pedicle was cut. To the best of our knowledge, this is the first report of the use of a free anterolateral thigh perforator flap for a cross-bridge microvascular anastomosis.

Burns↗
PubMed1992

Magnetic resonance imaging of tendon and ligament abnormalities: Part II. Pelvis and lower extremities.

Magnetic resonance imaging (MRI) has provided an ideal means, unmatched by other preexisting modalities, of examining musculoskeletal abnormalities, particularly those involving tendons and ligaments in the lower extremities. Lack of motion artifact, convenience of application of surface coil, and absence of overlying structures have made the lower extremities ideally suited to MRI. In addition, the abundance of adjacent adipose tissue provides a superb contrast background. Although evaluation of trauma remains the most common reason for MRI examination, many other conditions may also affect tendons and ligaments. As in other soft-tissue, chondral, and osteochondral lesions, MRI provides exquisite details of abnormalities in these structures. Part II of this review systematically reviews the abnormalities of tendons and ligaments in the pelvis and lower extremities.

Adolescent↗
PubMed1986

[Rehabilitation].

When serious injuries of the soft tissue and bone of the distal crus are not totally cured, orthesis and walking-sticks may bring relief in rehabilitation. Defects after recovery seldom need to be treated by orthesis or orthopaedic shoes. In most cases orthopedic additives to normal shoes can compensate malposition of the bone or lost function of the joint.

Ankle Injuries↗
PubMed1980

[Osteosynthesis of fractures of the hands and feet in children according to the principles of the tension wire device (author's transl)].

Over a period of four years 47 children with fractures of the hand had to be admitted to the hospital. As a rule these fractures are treated conservatively. There are clear-cut principles for surgical treatment. The insertion of a Kirschner-wire is often not performed satisfactorily. In many case a stable osteosynthesis can be achieved with the tension wire. The tension power which acts upon the bone is transformed into a tension vector. Because the eccentric wires are very thin, it is often unnecessary to remove them at a later date.

Biomechanical Phenomena↗
PubMed1983

Lower limb injuries in motorcycle accidents.

A four month study was conducted at Southampton General Hospital of the injuries sustained by motorcycle riders, 104 of whom (60%) returned a postal questionnaire about the accident, rider and motorcycle. The study confirmed that injuries to the lower limbs are a major cause of morbidity and the long time spent in hospital. Further investigation identified specially vulnerable areas. In particular, for 'severe' lower limb injuries, the 'shin' region was identified as the most vulnerable area, and the force producing the injury was generally applied to the other side of the other side of the limb by another vehicle. 'Crash bars' were found to be ineffective in reducing either the incidence or severity of lower limb injury.

Accidents, Traffic↗
PubMed1989

Comment on 'The Influence of Running Velocity and Midsole Hardness on External Impact Forces in Heel-Toe-Running'.

Researchers not sufficiently sensitive to statistical power may interpret non-significant results as demonstrating that the conditions made no difference. Related issues include performer variability, sample size and effect size as they relate to experimental design. Examination of these factors suggests that caution must be exercised when interpreting the results of experimental data.

Analysis of Variance↗
PubMed2004

The organization of motor responses to noxious stimuli.

Withdrawal reflexes are the simplest centrally organized responses to painful stimuli, making them popular models for the study of nociception. Until recently, it was believed that withdrawal was a single reflex response involving excitation of all flexor muscles in a limb with concomitant inhibition of extensors. However, recent findings suggest that withdrawal reflexes are tailored to produce the most appropriate movement according the site at which the stimulus is applied, which could require extensors to act as the primary movers. This idea is supported by new evidence obtained from the direct measurement of limb movements, although these data indicate that differentiation of withdrawal reflexes is most readily seen from stimuli applied to the plantar surface of the foot. Injurious stimuli augment the protective function of reflexes by enhancing (sensitizing) reflexes that protect the injured site and inhibiting those reflexes that might exacerbate the insult. The areas from which a reflex can be sensitized closely match those from which the reflex itself can be evoked, provided that the spinal cord is intact. If descending pathways are interrupted, sensitization can be evoked from a much wider area. Thus, the exact movement made in a withdrawal reflex is determined by the location of the evoking stimulus and whether the reflex sensitized or inhibited after an injury depends on the relationship between the site of the injury and the movement made by the reflex. The factors should be borne in mind when designing experiments in which reflexes are used as the end point in studies of nociception.

Adaptation, Physiological↗