Cadaveric Bilateral Proximal Forearm Allotransplantation

Long-term follow-up of three different nerve repair strategies (repair, autografting and allografting) in one-stage replantation to treat upper extremity amputation

OBJECTIVE

To examine the efficacy of three different nerve repair methods for one-stage replantation to treat complete upper extremity amputation and long-term postoperative functional recovery.

METHODS

Twenty-five patients underwent direct nerve anastomosis (Group A), for patients with nerve defects greater than 3 cm, nerve autograft transplantation be used (Group B), or patients with nerve defects less than 3 cm, nerve allograft transplantation be used (Group C) based on the severity of injury. The Disabilities of the Arm, Shoulder, and Hand (DASH) score (higher score means poorer function-less than 25 means good effect) and visual analogue scale (VAS) scores for pain at rest and under exertion were measured. Sensation recovery time and grip function were recorded.

RESULTS

The mean follow-up time was 78 ± 29 months. Group A had the lowest DASH score, while Group C had the highest DASH score. DASH score differed significantly between the three groups (P < 0.001). Sensation was not restored in two patients in Group B and two patients in Group C, and there were significant between-group differences in sensation recovery (P = 0.001). Group C had the lowest VAS score, while Group A had the highest, and there were significant differences between groups (P = 0.044). Only one patient in Group C recovered grip function.

CONCLUSION

Direct nerve anastomosis should be performed whenever possible in replantation surgery for complete upper extremity amputation, as the nerve function recovery after direct nerve anastomosis is better than that after nerve autograft transplantation or nerve allograft transplantation. Two-stage nerve autograft transplantation can be performed in patients who do not achieve functional recovery long after nerve allograft transplantation.

Intergender Hand Transplant: A Sex Congruent Hand Transformation

ABSTRACT

Hand and upper-extremity transplantation restore severely damaged limbs that cannot be repaired with conventional surgical techniques. Over the past 20 years, more than 200 vascularized composite allotransplantations have been performed worldwide, among them 7 were cases of sex unmatched hand transplants. The long term effects of recipient sex hormones and nerve regeneration on the sexually dimorphic physical features of donor upper extremity have not been described previously. We report a case of sex congruent transformation of hand morphology in an intergender hand transplant.

Infectious complications of vascularized composite allograft transplantation

PURPOSE OF REVIEW

Vascularized composite allograft (VCA) transplants constitute multiple tissues transplanted together as one functional unit. These procedures are increasing in frequency and complexity, yet data about graft survival, quality of life, and infection risk remain limited.

RECENT FINDINGS

Informative guidance for this patient population is often inferred from the solid organ transplantation literature. Yet, it is important to understand that VCA transplantation additionally carries its own significant and distinctive risk factors for infection.

SUMMARY

In this review, we give an overview of previously described infectious complications of VCA transplantation in the literature, discuss risk factors for future infection in these patients, and discuss how to manage such obstacles.

Cadaveric Bilateral Transhumeral Upper Limb Transplantation: Journey to the Next level

Organ transplant has, arguably, been the pinnacle of the advancement in medical science so far and vascularized composite allotransplantation has been the most recent addition to it. The scope of vascularized tissue allotransplantation has been widening with each passing day and more and more reports regarding the safety and efficacy of the procedure have been described.

Due to the limited available literature on the management of the complications and implications of the hand transplant, the importance of each report on the procedure is paramount.

A mid-arm allotransplant is a challenge in terms of expected motor recovery, and many controversies exist over the efficacy of the procedure altogether. Moreover, our case was complicated by a long ischemia time due to logistic reasons.

We share our experience of a transhumeral upper limb allotransplantation, the complications associated with it along with the early postoperative results at 10 months follow up.