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PubMed1985

A non-invasive index of leg arterial perfusion pressure during walking, derived from cutaneous toe temperature.

This article describes and evaluates a non-invasive technique for continuous monitoring of hemodynamic changes in the legs during walking. The method involves monitoring of cutaneous toe temperature. In six normal subjects we have shown that, during exercise under carefully controlled conditions, a unique steady-state toe temperature exists for any given leg arterial perfusion pressure, when perfusion pressure is varied by means of an external occluding ankle cuff. Further, we have demonstrated a strong correlation between this external ankle cuff pressure and the time rate of changes of toe temperature during the test-period following occlusion. Correlation coefficients, r1, were between -1 and -0.88 (mean -0.95; standard deviation +/- 0.03) for big toe and between -1 and -0.87 (mean -0.94; standard deviation +/- 0.03) for third toe. We conclude that during walking the time profile of toe temperature changes is a useful index of changes in leg perfusion pressure. Therefore, toe temperature may be used to study the dynamics of leg arterial circulation in atherosclerotic occlusive diseases.

Adult↗
PubMed1989

Toe walking. A marker for language disorders in the developmentally disabled.

Toe walking unassociated with an autistic disorder or cerebral palsy generally has been considered a normal infant gait. The incidence of toe walking in various diagnostic subgroups of 799 developmentally disabled children presenting to a tertiary-level multidisciplinary assessment clinic was reviewed to investigate the authors' clinical impression that toe walking may be a marker for language dysfunction. Toe walking was found to be more frequent in those diagnostic subgroups with more severe language disorders. Toe walking also correlated with lower IQ scores (p less than 0.0001). The sensitivities, specificities, predictive validities and odds ratios all supported the hypothesized association between toe walking and language disorders. Further prospective studies of the neurodevelopmental outcome of children with toe walking are needed to determine whether this behavior can identify children at risk for language disorders.

Autistic Disorder↗
PubMed2000

The medial crosssover toe: a cadaveric dissection.

UNLABELLED: The development of a medial crossover second toe (second toe crossing over the first toe) is not a rare clinical condition. It often occurs in the setting of hallux valgus, although not exclusively so. The resulting displacement of the second toe can cause pain in shoes, with surgical correction being problematic. The pathologic anatomy of this condition has not been fully described. In an effort to better understand it, dissection of a cadaveric specimen with a full crossover toe is presented. The dissection revealed findings not previously documented. They include medial displacement of the flexor tendons and plantar plate along with deformity of the plate itself. These changes are in addition to contracture of the medial collateral ligaments and the previously described rupture of the lateral collateral ligaments. Both the plantar plate and the collateral ligaments, the two major static soft tissue stabilizers of the lesser MP joint, were found to be significantly involved. Pull on the flexor tendons only accentuated the malalignment of the toe. CLINICAL SIGNIFICANCE: The extensive soft tissue changes explain the difficulty in achieving a successful long term correction of a full medial crossover toe with a soft tissue procedure. With attenuation of the plantar plate and medial displacement of the flexor tendons, there is an imbalance of muscle forces across the MP joint. This muscle imbalance would not be corrected by release of the medial collateral ligament, dorsal capsular release or extensor tendon lengthening. Reconstruction of the collateral ligament is at risk for incomplete correction since it is unlikely to resolve deformity in the plate if already present.

Cadaver↗
PubMed2001

Bacterial recolonization during foot surgery: a prospective randomized study of toe preparation techniques.

Fifty patients undergoing foot or ankle surgery were randomized into two groups for the purposes of toe preparation. Twenty-four patients underwent a standard preparation which included placing antiseptic between the toes while 26 were additionally cleaned by sliding a gauze swab soaked in topical antiseptic back and forth several times. Povidone iodine followed by chlorhexidine in alcohol was used in both groups. All toes were covered by a sterile glove during surgery unless the toes themselves were to be operated upon. Bacteria were cultured from the toe clefts in 4% of all patients immediately following preoperative disinfection. Significantly fewer patients whose toes had been additionally scrubbed (group 1) showed bacterial recolonization at the end of surgery compared with those undergoing a standard prep (group 2) (7.7% vs 20.8%). We conclude that additional scrubbing of toe clefts prior to surgery reduces the incidence of recolonization of bacteria during the surgical procedure.

Anti-Infective Agents, Local↗
PubMed2003

Operative repair of fourth and fifth toe corns.

METHODS: We report a retrospective review of 57 consecutive patients (72 feet) over a period of 20 years who had been treated operatively for either a lateral fifth toe corn or an interdigital corn of the fourth interdigital space more than two years previously. Of these, 51 patients (62 feet) returned for a follow-up evaluation at a minimum of two years (average of over seven years) which included a review of the interval history since the surgery, a physical examination, a radiographic evaluation, and assessment of the patient's satisfaction with the alignment and results of surgery. Treatment of 31 lateral fifth toe corns involved either a lateral condylectomy and flexor tenotomy or a complete condylectomy. Treatment of 31 interdigital corns comprised either a single condylectomy, double condylectomy of adjacent corns, or a complete condylectomy (hammertoe repair) of a symptomatic corn. Treatment in each case was dependent upon the severity of the deformity. RESULTS: There was found to be no significant difference in comparison of the two major groups (interdigital corns and lateral fifth toe corns) with the measurement of the relative length of the fourth and fifth metatarsals, toe malalignment, angulation of the fourth and fifth toes (MTP-4, MTP-5 angles), and the phalangeal-5 angle. Pain was relieved in 58 of 62 feet (93%) and subjective acceptable alignment was achieved in 54 of 62 feet (87%). At final follow-up 53 feet were rated by patients as excellent, seven as good, one as fair, and one as poor. Complications included numbness of the involved digit (six feet). There were two superficial infections. There were two cases of joint instability due to excessive bone resection. Joint stiffness was commonly observed (34/62 feet, 55%), but was not associated with diminished satisfaction at final follow-up. Mild asymptomatic recurrence of a callosity was noted in 10 feet and moderate or severe recurrence was noted in two feet. Dissatisfaction was associated with moderate or severe recurrence. CONCLUSION: In this retrospective study at an average of more than seven years, we achieved a high level of patient satisfaction treating both lateral fifth toe corns and interdigital corns with a partial and/or complete condylectomy, the choice depending upon the magnitude of the deformity and the callus, and the fixed nature of the lesser toe deformity.

Adult↗
PubMed1994

The extra-depth toe box: a rational approach.

The conservative management of foot deformities often requires the use of a modified shoe. A higher toe box is one of the most common variations required when the abnormality is located in region of the forefoot. High toe boxes are available in a variety of footgear, including athletic sneakers, comfort shoes, and prescription footwear. A rational approach to accommodating a deformed forefoot would be to first measure the maximum height of the abnormal toes in a weightbearing position. Then, by referring to a table listing shoes and available toe box space, the physician could match the foot with a shoe. The purpose of this study was to collect and tabulate measurements of toe box height for a variety of shoes. Impressions were taken from various shoes using a moldable plastic material. Toe box height was then measured and recorded. Results were tabulated for various types of men's and women's shoes. The depth of shoes at the point 5 cm from the tip of the toe was about 44 mm for most styles. The sagittal profile (i.e., vertical height available) of extra-depth shoes, comfort shoes, and athletic shoes was similar.

Female↗
PubMed2000

Phantom finger phenomena and the effects of toe-to-finger transplantation.

Phantom finger phenomena and the effects of toe-to-finger transplantation were studied in 76 patients who had had traumatic finger amputation. Phantom finger phenomena were observed in 48 (63%) patients with the presence of phantom finger only in 30, phantom finger with sensation in nine, and phantom finger with motion also in nine. After toe transplantation, phantom finger phenomena disappeared immediately in about half of the transplanted fingers that had phantom phenomena before toe transplantation, and also in about half of the amputated fingers without the surgery. Conversely, phantom toe phenomena occurred in 13 (17%) patients. Although some patients had mild-to-moderate unpleasant phantom sensations, none had severe or distressing phantom finger pain or phantom toe pain. It is concluded that phantom phenomena occurred in both finger and toe amputations, and that toe-to-finger transplantation appeared to facilitate the disappearance of phantom phenomena not only in the transplanted fingers but also in the amputated but untransplanted fingers. Possible mechanisms for these observations are discussed.

Adolescent↗
PubMed1989

Prognostic value of systolic ankle and toe blood pressure levels in outcome of diabetic foot ulcer.

The prognostic value of distal blood pressure measurements has been studied in 314 consecutive diabetic patients with foot ulcers. Systolic toe blood pressure was measured with a strain-gauge technique, and ankle pressure was measured with strain-gauge or Doppler techniques. Wound healing was defined as intact skin for at least 6 mo. One hundred ninety-seven patients healed primarily, 77 had amputations, and 40 died before healing had occurred. In 294 of 300 patients, it was possible to measure either ankle or toe pressure. Fourteen patients were not available for pressure measurements. Of these, 10 patients healed primarily, and 4 died before healing occurred. Both ankle and toe pressures were higher (P less than .001) among patients who healed without amputation compared with those who underwent amputation or died before healing. No differences were seen in ankle or toe pressure levels among those who had amputations or died. No patient healed primarily with an ankle pressure less than 40 mmHg. An upper limit above which amputation was not required could not be defined. Primary healing was achieved in 139 of 164 patients (85%) with a toe pressure level greater than 45 mmHg, whereas 43 of 117 patients (36%; P less than .001) healed without amputation when toe pressure was less than or equal to 45 mmHg. In conclusion, a combination of ankle and toe pressure measurements is a useful tool to predict primary healing in diabetic foot ulcers.

Aged↗
PubMed1995

Increased foot pressures after great toe amputation in diabetes.

OBJECTIVE: To compare peak pressures on the sole of the foot in non-insulin-dependent diabetic patients with isolated, unilateral amputations of the great toe and first metatarsal with the patients' contralateral, intact foot. RESEARCH DESIGN AND METHODS: Eleven patients with a unilateral great toe and partial first metatarsal amputation of at least 6 months duration were evaluated with the F-Scan in-shoe pressure measurement system. Patients were studied in the same brand and style of footwear--a thin, rubber-soled, canvas boat shoe. We compared mean peak plantar foot pressures under the first metatarsal, lesser metatarsals, lesser toes, and heel in feet with and without a great toe amputation using the Wilcoxon's matched pairs signed-rank test. RESULTS: Peak foot pressures were significantly higher under the first metatarsal head (P = 0.046), lesser metatarsal heads (P < 0.001), and toes (P < 0.001) in feet with a great toe amputation compared with the contralateral foot without an amputation. Pressure under the heel was higher on the contralateral foot (P < 0.01). CONCLUSIONS: After a great toe amputation, pressure distribution of the foot is significantly altered. Because preamputation risk factors such as peripheral neuropathy, foot deformity, and limited joint mobility for many of these patients remain unchanged, an increase in foot pressures contributes to an increased risk of reulceration and reamputation in these patients.

Adult↗
PubMed1983

Restricted energy intake and elevated calcium and phosphorus intake for boars during growth. II. Foot and leg measurements and toe and soundness scores.

Boars were assigned at 5 wk of age in a 2 X 2 factorial arrangement to two energy (ad libitum and 75% of ad libitum) and two Ca and P levels (100 and 150% of the National Research Council daily recommended amounts) to determine the effect of reduced growth rate and elevated Ca and P intake on foot and leg measurements, pad and horn incidence and severity of lesions, and structural soundness. There were 20 boars/treatment; 15 boars from each treatment were necropsied at 10 +/- 2-d intervals from 80 to 220 d of age (45 to 185 d on test), with the remaining five boars in each treatment being necropsied at 220 d of age. Feet and leg measurements were taken and toe pads and horns were scored initially and after 78 and 131 d on when necropsied. Boars remaining after 130 d on test were scored for overall structural soundness. Toe size and circumference and length of limbs increased as boars grew, with larger values for ad libitum-fed compared with limit-fed boars when observed at a constant age. However, when these values were corrected for body weight, the effect of energy was generally removed and, in some cases, reversed. Limit-fed boars appeared to have fewer pad and horn lesions, but the effects were inconsistent. In general, Ca and P levels had little or no effect on toe and limb sizes and pad and horn lesion scores, whether or not the values were expressed on a constant age or corrected body weight basis. A comparison of inside and outside toes on the front and hind feet revealed that outside toes were larger than inside toes, with the magnitude of the difference much larger for the hind foot than for the front foot. The hind inside toes had fewer pad and horn lesions. Structural soundness scores were more desirable in ad libitum-fed compared with limit-fed boars; but, elevated Ca and P levels had no effect. Thus, these data do not support a hypothesis that structural soundness can be improved by reducing the growth rate of developing boars or by feeding an elevated level of Ca and P.

Animals↗
PubMed1999

Combined third and fourth toe transplantation.

Multiple toe transplantation has been established as an effective technique for restoring prehensile ability in the metacarpal hand. The combined third and fourth toe transplant is a new toe transplant that has been developed for bilateral metacarpal hand reconstruction. Since 1991, the combined third and fourth toe transplant was added to the armamentarium of toe transplants for metacarpal hands, although its role in metacarpal hand reconstruction has not been described previously. This article introduces the indications for combined third and fourth toe transplant, outlines relevant vascular anatomy, and discusses technical considerations pertaining to toe harvest and transplantation.

Adult↗
PubMed2001

[Evaluation of late results of reconstructions of the thumb by trimmed great toe method].

Twelve patients with posttraumatic defects of the thumb were treated in the years 1990-1999 by the trimmed great toe method. Eight of them had additional injuries or loss of long fingers (two patients lost all fingers). Reconstruction methods were chosen basing on the amputation level. A fragment of the trimmed great toe of an appropriate length was used distally to the distal part of the first metacarpal according to the technique described by Wei (9 patients). In cases of a more proximal amputation only a distal part of the great toe was used. Pollicisation of other elements of the index with simultaneous free transfer of the great toe distal part was carried out in two patients with index amputations. Bone stabilization was secured by K wires. Arthrodesis was performed in three patients. Tendons were sutured in eight patients In every case anastomosis of the dorsal pedis artery, saphenous vein and two toe digital nerves were performed (additionally the toe plantar artery was anastomosed in two patients and branches of the superficial peroneal nerve were anastomosed in seven patients). Immobilization was applied for four weeks on the foot and six weeks on the hand. All the transferred trimmed great toes survived completely. The hand wounds healed after two weeks, the foot wounds 2-7 weeks (twenty eight days on average). Late results were evaluated 1-9 years after reconstruction. 2PD was 6-14 mm. Thumb length was similar to the contralateral ones and the average range of motion in i.p. join was 3 degrees. According to the patients the results were very good.

Adolescent↗
PubMed2003

Evaluation and management of toe fractures.

Fractures of the toe are one of the most common lower extremity fractures diagnosed by family physicians. Toe fractures most frequently are caused by a crushing injury or axial force such as stubbing a toe. Joint hyperextension and stress fractures are less common. Most patients have point tenderness at the fracture site or pain with gentle axial loading of the digit. Anteroposterior and oblique radiographs generally are most useful for identifying fractures, determining displacement, and evaluating adjacent phalanges and digits. Referral is indicated in patients with circulatory compromise, open fractures, significant soft tissue injury, fracture-dislocations, displaced intra-articular fractures, or fractures of the first toe that are unstable or involve more than 25 percent of the joint surface. Most children with fractures of the physis should be referred, but children with selected nondisplaced Salter-Harris types I and II fractures may be treated by family physicians. Stable, nondisplaced toe fractures should be treated with buddy taping and a rigid-sole shoe to limit joint movement. Displaced fractures of the lesser toes should be treated with reduction and buddy taping. Patients with displaced fractures of the first toe often require referral for stabilization of the reduction.

Fracture Fixation↗
PubMed1988

[Experimental and clinical studies on free toe-joint transplantation to replace a finger joint by microvascular technic].

Major vascular pattern of the toe joints was investigated with template and transparent specimens in ten lower limbs of five Japanese monkeys and seven adult human amputated lower limbs. This led to the conclusion that the metatarsal artery should be used for toe MP joint grafts, while the unilateral proper digital artery is suitable for toe PIP joint grafts, together with concomitant or dorsal cutaneous vein. Twelve PIP and nine MP joints, a total of twenty-one experimentally grafted monkey toe joints with the above described vascular pedicles were radiologically and functionally in excellent condition after twelve months, whereas twenty-seven experimentally grafted monkey toe joints without vascular pedicles fell into cartilage degeneration after six months. Based on the results obtained from these experimental studies, nine human finger joints, consisting of two CM, four MP and three PIP joints, were replaced with either toe MP or PIP joints. One and half years on average after the grafting, the grafted toe joints were radiologically and functionally normal with growth of the open epiphysis.

Adolescent↗
PubMed1981

Toe blood pressure by photoplethysmography: an index of healing in forefoot amputation.

The relative merits of toe systolic blood pressure and ankle systolic pressure in predicting the result of forefoot amputation were evaluated in 30 limbs of 27 patients who underwent digit or transmetatarsal amputation. Twenty-four (89%) patients were diabetic. An infrared photoplethysmograph placed distal to a pneumatic digit occluding cuff allowed rapid, simple preoperative assessment of toe systolic pressures. Ankle pressures was measured by Doppler ultrasound. Twenty (67%) amputations healed primarily, whereas 10 ultimately required reamputation at the below-knee level. The mean ankle pressure of limbs with healing of forefoot amputation, 136 +/- 39 mm Hg (+/- SD), did not differ significantly from those that failed to heal, 121 +/- 72 mm Hg (P greater than 0.4). Failure of an amputation to heal occurred in association with ankle pressures ranging from 60 to over 300 mm Hg. The mean value of toe pressures associated with healing of forefoot amputation, 86 +/- 39 mm Hg, was significantly higher than those not healing, 25 +/- 18 mm Hg (P less than 0.001). Failure of a forefoot amputation to heal occurred in all eight limbs with toe pressures less than 45 mm Hg, and in two of eight (25%) limbs with toe pressure between 45 and 55 mm Hg. Primary healing occurred in all 14 limbs with toe pressures greater than 55 mm Hg. These data suggest that toe pressure measurement may be a useful hemodynamic correlate of the healing potential of a forefoot amputation.

Amputation, Surgical↗
PubMed1993

[Forum: reconstruction of the traumatic thumb. Toe as a donor site for reconstruction of the thumb].

One method of reconstruction of the thumb consists of microsurgical transfer of a toe. After a brief anatomical and technical review, the authors describe the various possibilities of thumb reconstruction using toe transfer: transfer of the 2nd toe, transfer of the great toe, partial toe transfers. Traumatic amputations must be distinguished from congenital amputations in terms of the indications for toe transfers. The indication for toe transfer in a case of traumatic amputation may be based on the level of amputation.

Amputation, Traumatic↗
PubMed1996

[Reconstruction of digital pulp by pulp tissue transfer of the toe. Apropos of 15 cases].

PURPOSE OF THE STUDY: The authors report their experience of digital pulp reconstruction by free toe pulp transfer. Fifteen patients were treated with the lateral great toe hemipulp. MATERIAL AND METHODS: 15 cases of post-traumatic finger tip reconstruction were reviewed including 9 thumbs, 5 index, 2 medius, and one ring finger. There were 6 emergency cases and 9 secondary reconstructions (7 after inconvenient spontaneous healing and 2 after groin flap coverage). RESULTS: We noted 2 partial necrosis, and 4 patients suffered from cold intolerance. The flap sensibility, according to the American Society for Hand Surgery criteria, was excellent in 1 case good in 6 cases, fair in 7 cases and bad in 1 case. The value of the mean two point discrimination test was 10 mm, the mean moving two points discrimination test equalled 9 mm. We had 1 excellent functional result, 6 good, 6 fair and 2 bad. The subjective evaluation found 12 patients satisfied and 3 disappointed. DISCUSSION: A wide range of procedures from spontaneous healing to thenar flap, neuro vascular flap or toe pulp transfer can be proposed to treat digital pulp loss. In the case of moderate thumb pulp avulsion and homodigital volar flap can be proposed; if microsurgery is contra-indicated, an hetero-digital flap from the index can be performed. When the other fingers are concerned, a homodigital flap can be proposed for moderate defects. For more important trauma, the thenar flap is convenient to cover the index and the medius pulp. Ring and little fingers can be treated by a reverse digital artery flap or by a cross finger flap. When a toe pulp transfer is indicated we recommend the lateral great toe hemipulp for the thumb and a second or third toe pulp transfer for the other fingers when digital vascular anastomosis are possible. The great toe hemipulp transfer represented a good indication for complete digital pulp loss reconstruction where the thumb is concerned. Performing this reconstruction during the acute phase may improve the management of those trauma by reducing the time needed for cicatrisation and the length of work inability.

Adolescent↗
PubMed1999

A comparison of train-of-four monitoring: mechanomyography at the thumb vs acceleromyography at the big toe.

BACKGROUND: It is not known if the information on neuromuscular function obtained from the hand is interchangeable with that of the foot. In the present study the agreement of thumb mechanomyography with acceleromyography of the big toe was studied. METHODS: Ten healthy patients scheduled for oral surgery were studied. Anaesthesia was induced with fentanyl 2 micrograms kg-1 and propofol 2 mg kg-1, and maintained with propofol 100-175 micrograms kg-1 min-1, nitrous oxide 60-70%, and fentanyl 1-2 micrograms kg-1 h-1. Vecuronium 0.1 mg kg-1 was used for muscle relaxation. Mechanomyography (MMG) of the thumb (Myograph 2000) and acceleromyography (AMG) of the big toe (TOF-Guard) were recorded simultaneously in all patients, and onset, period of no-twitch response, duration of action, and spontaneous recovery time obtained from both muscle groups. The agreement between methods was tested by calculation of bias and limits of agreement. RESULTS: The onset time and duration of action were significantly shorter (87 s vs 154 s, and 35 min vs 38 min, respectively), and the spontaneous recovery time significantly longer in the thumb than in the big toe (32 min vs 19 min). Period of no-twitch response was not significantly different in the two muscle groups. Limits of agreement (thumb big toe) were -21 to -113 s, -7 to 1 min, and -9 to 35 min, for onset time, duration of action, and spontaneous recovery time, respectively. CONCLUSIONS: We conclude that clinically acceptable agreement between thumb mechanomyography and big toe acceleromyography was found for the period of no-twitch response, suggesting that the timing of supplemental doses of vecuronium can be guided by AMG at the big toe. However, the spontaneous recovery time agreement (to TOF ratio = 0.75) between the thumb and the big toe was poor.

Acceleration↗