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At least 19 recordsLinked to original sources

Pulp plasty after toe-to-hand transplantation.

Pulp plasty is a simple procedure that is used to debulk the bulbous-appearing pulp of a transplanted digit after toe-to-hand transplantation. A retrospective review of the effect of pulp plasty on the appearance and function of the debulked digit was conducted of 82 digits on 51 patients. Pulp plasty was performed on average of 14 months after toe-to-hand transplantation; the average follow-up interval was 20 months. Subjective improvement in appearance and function was reported in 67.1 and 63.4 percent, respectively, of the debulked digits. Painful scarring was rare, and hypersensitivity was not reported. Sensation was not affected adversely by pulp plasty. The procedure was considered to be worthwhile in 87.8 percent of the cases. Pulp plasty is a simple and effective procedure after toe-to-hand transplantation that enhances the appearance and function of the transplanted digit. Patient satisfaction with the procedure is high.

Adolescent

Intraosseous wiring in toe-to-hand transplantation.

Although there are many reports on bony fixations in finger replantations, information pertaining to fixation methods in toe-to-hand transplantations is scarce. The results of intraosseous wiring were evaluated in 68 toe-to-hand transplantations in 47 patients. Clinical and radiological evaluation of bony union was conducted an average of 30 months after the procedure. There was no malunion. There was one painless pseudarthrosis, with an overall nonunion rate of 1.5%. Intraosseous wiring is a simple, quick, dependable, and consistent method of fixation in toe-to-hand transplantation.

Adolescent

Reconstruction of the thumb and digit by toe to hand transplantation.

Since the rapid development of microsurgery it is feasible to replant most severed thumbs and digits. In certain patients, however, the trauma is so severe that replantation cannot be performed, such as crush or burst injuries where the amputated part is badly smashed or broken into pieces. There are many methods used to reconstruct amputated thumbs or digits. In our hospital reconstruction of the thumb is accomplished by second toe transplantation, nail flap of the great toe transplantation and bone graft, and nail flap of the great toe and skeleton from the second toe transplantation. Reconstruction of fingers is undertaken through second toe transplantation and second and third toe transplantation. After total loss of the hand, double second toe transplant is used for reconstruction.

Adult

Second-toe to hand transplantation: a clinical experience of 25 cases.

Twenty-five cases of second-toe transplantation to replace the thumb and other fingers are reported. There were 20 toal successes, four partial successes and one total failure. A total of eight patients had circulatory complications at some stage after operation. The overall motor and sensory functions of the transplanted toes were highly satisfactory. The donor foot did not suffer functionally despite the absent second toe.

Adolescent

[Absence of blood circulation following toe-hand transplantation in a 7-year-old girl with monodactyle form of symbrachydactyly].

In a toe transplantation in a child with symbrachydactyly the authors were faced with a no-reflow phenomenon. The medication they used in prophylaxis was not an absolute guarantee to prevent this problem. Success also depends on some general measures, as a stable blood pressure, a constant blood volume, normal body temperature, short operation time, and an early revision in case of a no-reflow phenomenon. Some questions about the appearance of spasm still remain: are they provoked by pain, stress, medication as anaesthetics, or is a congenital structural vessel problem responsible?

Angiography

Reconstruction of four damaged or destroyed ipsilateral fingers with free toe-to-hand transplantations.

Three patients with traumatic partial or complete loss of all ipsilateral digits, excluding the thumb, were reconstructed with free microvascular toe transplantations for all involved digits. In two cases, two pairs of combined second and third toe transplantations were utilized; in the third case, four separate toes were employed. Clinical follow-up was 8 1/2 years, 2 years, and 1 2/3 years. Detailed functional analysis was performed. All patients except the first had initially undergone reconstruction of only two digits and had requested a second procedure to transfer two additional toes. While reconstruction of the thumb and two opposing digits is adequate in most cases, selected patients may benefit from the additional two digits, especially with respect to improving hook grip.

Adolescent

Free serratus anterior muscle transplantation for hand reconstruction.

Free transplantation of the serratus anterior muscle has allowed salvage or reconstruction of difficult hand injuries with advantages compared to traditional methods. Free muscle tissue adds vascularity to poorly vascularised and potentially infected wounds and allows hand elevation and early mobilisation. Dynamic reinnervation is possible with segmental preservation of the long thoracic nerve. The serratus anterior muscle is easily harvested and has a long, reliable vascular pedicle. It is thin, easily contoured to the defect and can be separated into its component slips. The muscle provides stable coverage when covered with a meshed split thickness skin graft. Scapular winging does not occur since only the lower two or three slips of muscle are used. The muscle has been used in 15 complex hand wounds, three within a week of revascularisation or digital replantation for hand salvage. Three dynamic muscle transfers were performed to restore thumb opposition with one simultaneous toe-to-thumb transplantation.

Adolescent

Free gracilis muscle transplantation for hand reconstruction.

Free muscle transplantation with motor innervation is the only way to add contractile elements to upper extremities with extensive loss of musculature due to direct trauma or untreated compartment syndrome (Volkmann's contracture). The functional cross-sectional area and the mean resting fiber length determine the maximum power and the contracting amplitude of the donor muscle, respectively. Although considerably weaker than the finger flexors to be replaced, the gracilis muscle was the preferred donor muscle because of the consistent anatomy of its neurovascular pedicle and the minimal donor site morbidity. In a series of 15 gracilis transplantations, all 13 muscles that survived regained function. Finger motion was dependent on the preoperative condition of tendons and joints. Even after complete loss of the flexor and extensor compartment after direct trauma or infection, a useful upper extremity could be restored, which was preferable to the only alternative--amputation.

Adolescent

Early complications in second toe to hand transplantation-the occurrences and preventive measures.

The operative experience of twenty cases of second toe to hand transplantations was discussed. Although there was only one total failure, there were frequent complications. The factors leading to the high rate of complications (just over 1/3 of cases) were analysed. A treatment scheme, which took into consideration a large number of precautions and preventive measures against early complications was carefully outlined.

Adolescent

Tissue transplants in primates for upper extremity reconstruction: a preliminary report.

Recent advances in clinical transplantation surgery suggest that hand transplantation is no longer an unrealistic expectation. However, two questions must be answered. Can composite tissue transplants survive in a primate species? Does the required neural reinnervation occur under immunosuppression? Four hand transplants and seven neurovascular free flap transplants were done in baboons immunosuppressed with Cyclosporin A and steroids (methylprednisolone). Long-term survival occurred in nine. Electrophysiologic tests of sensory axons revealed reinnervation of transplanted skin as evidenced by well-defined, low threshold receptive fields in the donor tissue. Reinnervation of donor muscle was demonstrated by motor unit recruitment in stepwise fashion after electrical stimulation of the recipient's median and ulnar nerves. Afferent fibers serving the donor's joints and muscle spindles were also observed.

Animals

Urologic complications after simultaneous pancreas-kidney transplantation: hand-sewn versus stapled duodenocystostomy.

Pancreas transplantation with bladder drainage of exocrine secretions may be associated with significant urologic complications. Stapled and hand-sewn duodenocystostomies were compared in 61 recipients of simultaneous pancreas-kidney transplants. Both methods resulted in similar urologic complication and allograft survival rates. Duodenal segment leaks were associated with significant morbidity and decreased patient and allograft survival.

Adult

[Autoplastic foot-to-hand joint transplantations].

Our surgical experience in the field of total and partial foot-to-hand joint transplants has evolved over the past 9 years (1973). In the case of serious traumatic injury of finger joints of the hand, we don't suggest any surgical solution other than that of arthrodesis or arthroplasty of the damaged joint. In our experience joint transplantation is a reconstructive operation of the whole functionality of the injured finger. This operation partially restores the active function of the finger involved and gives both the patient and the surgeon the possibility of an alternative to arthrodesis, arthroplasty or painful instability of the destroyed joint, thus avoiding their characteristic disabilities. The transplantation guarantees a true stability of the joint and in the majority of cases the disappearance of pain. The technique described are the result of our experience in treating our clinical cases which consist of 20 patients treated, over more than 9 years at the Division of Hand Surgery of Traumatologic and Orthopaedic Center of Turin. The total number of transposed joints is 22, 16 of which are hemiarticular grafts. The operations have concerned 8 M.P. and 14 PIP joints of the fingers.

Adult

[Timing of free microsurgical tissue transplantation in hand injuries during the acute phase].

Due to favourable survival rates in replantation surgery and a high standard of free tissue transplantation, the interval between injury and microsurgical reconstruction has continuously decreased in the past. The acute phase can be defined as the interval ranging from emergency procedures within 24 hours to "urgence différée" procedures within 72 hours. Bearing in mind the infection rates of 1.5% and 17.5% respectively as it has been reported in the literature, we should encourage emergency reconstructions. However, in most cases of upper extremity injuries, reconstruction with conventional flaps is possible. Between 1981 and 1991, 674 free tissue transplantation have been performed in our unit, 61% of the cases of free tissue transplantations to the upper extremity were done in the acute phase, the majority within 72 hours (urgence différée). No significant differences in rates of infections were evident comparing acute phase and urgence différée procedures. Because of this, we still support the concept of urgence différée. In our opinion the following advantages have to be considered: urgence différée allows a second loop operation, the vitality of the extremity can be ascertained, and the reconstructive procedure can be planned more precisely. Last not least, a procedure performed during the day-time assures better operating conditions. This concept is demonstrated with clinical cases.

Adult

[Substitution of soft tissue defects of septic origin on the back of the hand by transplantation of a free composite flap].

Authors report on substitution of severe skin and extensor tendon defect on the back of the hand, developed after a II. grade open septic metacarpal fracture. For the covering of the defect of the soft tissue the paratenon--tendon--skin free flap unit was used, supplied by the a. dorsalis pedis. In one operation the skin in full thickness and the extensor tendons could be substituted at the same time the suppuration was eliminated and the pseudarthroses stabilized with lamellar osteosynthesis.

Accidents, Occupational