The First Belgian Hand Transplantation—37 Month Term Results

2006 ◽  
Vol 31 (4) ◽  
pp. 371-376 ◽  
Author(s):  
F. SCHUIND ◽  
C. VAN HOLDER ◽  
D. MOURAUX ◽  
CH. ROBERT ◽  
A. MEYER ◽  
...  

The first Belgian hand transplant was a 22 year-old man with a traumatic amputation of his dominant hand at the junction of the middle and distal thirds of the forearm. The donor and recipient had three HLA mismatches. The cross-match was negative. The total ischaemic time was slightly over 6 hours. Immunosuppression included antithymocyte globulins at induction and tacrolimus, mycophenolate mofetil and prednisolone as induction and maintenance therapy. There has been no episode of rejection. The only significant complications, except for transient hyperglycaemia, were psychological. At 37 months post-transplantation, the patient has fully incorporated his transplant into his self-image and is back at work. He has good sensibility (two-point discrimination of 6 mm at the thumb and index finger pulps), acceptable wrist and finger motion with functioning intrinsic muscles. According to Chen’s criteria, the result is good to excellent.

2010 ◽  
Vol 13 (02) ◽  
pp. 75-82 ◽  
Author(s):  
Takako Chikenji ◽  
Hajime Toda ◽  
Chin Gyoku ◽  
Naoki Oikawa ◽  
Masaki Katayose ◽  
...  

The purpose of this study was to investigate the strengths of four intrinsic muscles of the hand of college baseball players. The strengths of four intrinsic muscle groups were measured by the Rotterdam Intrinsic Hand Myometer (RIHM) which has been developed to assess the abduction of the little finger and index finger, and palmar abduction and opposition of the thumb. The strengths of these four intrinsic muscle groups were compared between baseball players and inexperienced sports players. The abduction of the little finger and index finger, and the opposition of the thumb in both the dominant and nondominant hands of the baseball players were notably stronger than those of the inexperienced sports players. There was no statistical difference in the strength of the palmar abduction of the thumb between the two groups. The results suggest that the specific intrinsic muscles in both the dominant and nondominant hands might be strengthened by repeated baseball practices, such as a batting performance, which requires strain in both the dominant and nondominant hands repeatedly.


2012 ◽  
Vol 19 (06) ◽  
pp. 877-883
Author(s):  
Muhammad AZEEM ◽  
TAHSEEN AHMED CHEEMA ◽  
MUHAMMAD ZAFAR IQBAL

Introduction: Thumb is the most important part of human hand both functionally and cosmetically. The reconstruction of lostthumb is always challenging for the surgeons. Objectives: The aim of study is to evaluate the results of micro – vascular reconstruction ofthumb by toe transfer. Place and duration of study: B. Victoria hospital Bahawalpur from January 1998 to December 2008. Material andmethod: Both male and female patients who presented to the orthopedic Department with traumatic amputation of thumb were included in thestudy. Results: All ten thumbs survived with minor complication as for as functionally and cosmetically are assessed. Dominant hand wasinvolved in eight cases. Conclusions: Results of Microvascular reconstruction are much better as compared to conventional methods. This issingle stage procedure and early rehabilitation of hand is possible. Cosmetically and functionally this is far superior to conventional methods.


Robotica ◽  
2021 ◽  
pp. 1-13
Author(s):  
G Carbone ◽  
M Ceccarelli ◽  
C. E. Capalbo ◽  
G Caroleo ◽  
C Morales-Cruz

Abstract This paper presents a numerical and experimental validation of ExoFing, a two-degrees-of-freedom finger mechanism exoskeleton. The main functionalities of this device are investigated by focusing on its kinematic model and by computing its main operation characteristics via numerical simulations. Experimental tests are designed and carried out for validating both the engineering feasibility and effectiveness of the ExoFing system aiming at achieving a human index finger motion assistance with cost-oriented and user-friendly features.


2020 ◽  
Vol 35 (8) ◽  
pp. 1855-1863 ◽  
Author(s):  
Stina Järvholm ◽  
Anders Enskog ◽  
Catrina Hammarling ◽  
Pernilla Dahm-Kähler ◽  
Mats Brännström

Abstract STUDY QUESTION How is a women’s self-image affected by uterus transplantation (UTx)? SUMMARY ANSWER Women experienced receiving a uterus in both positive and negative ways, but in general, their self-image was positively affected; regardless of whether they have given birth to a child or not, recipients describe themselves as being ‘back to normal’ after the hysterectomy to remove the transplanted uterus. WHAT IS KNOWN ALREADY UTx has repeatedly proved to be a successful treatment for absolute uterine factor infertility. However, there has been no previous qualitative long-term research into the self-image of women undergoing UTx. STUDY DESIGN, SIZE, DURATION This complete, prospective cohort study included the nine recipients of the first UTxs performed in Sweden mostly in 2013. Interviews took place in the 5 years following surgery. PARTICIPANTS/MATERIALS, SETTING, METHODS Eight out of the nine recipients had congenital absence of the uterus, a characteristic of Mayer–Rokitansky–Küster–Hauser syndrome, and one recipient lacked a uterus after a radical hysterectomy due to cervical cancer. The mean age of participants was 31.5 years at inclusion and at this time they all lived in stable marital relationships. Post-transplantation, interviews were performed annually for 5 years, comprising a total of 43 interviews. The interview followed a semi-structured guide. All interviews (median duration of around 25 minutes) were recorded, transcribed verbatim and then analysed by thematic approach. MAIN RESULTS AND THE ROLE OF CHANCE The joys and frustrations of becoming a ‘complete’ woman are seen as a master theme, which influences the three underlying subthemes, a changed self-perception, a changed body and a changed sexuality. Each of these subthemes have three underlying categories. LIMITATIONS, REASONS FOR CAUTION The small sample size is a limitation. WIDER IMPLICATIONS OF THE FINDINGS The results provide information that will be helpful in pre-operative screening procedures and in the psychological support offered both to women who experienced successful and unsuccessful outcomes following UTx. STUDY FUNDING/COMPETING INTEREST(S) Funding was received from the Jane and Dan Olsson Foundation for Science; the Knut and Alice Wallenberg Foundation; an ALF grant from the Swedish state under an agreement between the government and the county councils; the Swedish Research Council; a Ferring Pharmaceuticals scholarship in memory of Robert Edwards; and the Iris Jonzén-Sandblom and Greta Jonzén Foundation. The authors have no competing interests. TRIAL REGISTRATION NUMBER NCT01844362.


2019 ◽  
Vol 14 ◽  
pp. 155892501988762 ◽  
Author(s):  
Xiaoxue Han ◽  
Xuhong Miao ◽  
Xi Chen ◽  
Gaoming Jiang ◽  
Li Niu

Knitted flexible sensors are sensors based on the loop structure of knitted fabric, which are soft and close-fitting. Monitoring finger motion can obtain useful information for some applications such as rehabilitation medicine, sports bionics, or human–computer interaction. In this paper, a conductive glove was knitted by SHIMA Seiki SWG 061N-15G computerized flat knitting machine. One experimenter wore it to measure motions data of index finger. The glove has a conductive intarsia area knitted by silver-nylon filaments. The experimenter performed static and dynamic test of hand posture, respectively, then observed the effect of figure bending characteristics on the glove resistance data. The result showed that human finger motion can be monitored successfully by the conductive glove without hard transducers, and both of the bending rate ( Br) and bending angle of the finger proximal interphalangeal joint ( Pba) affect the resistance change of the conductive area of the glove. In other words, the conductive glove has potentials to monitor and reflect human finger motions in detail.


2010 ◽  
Vol 113 (1) ◽  
pp. 129-132 ◽  
Author(s):  
Jayme Augusto Bertelli ◽  
Marcos Flavio Ghizoni

Object In C7–T1 palsies of the brachial plexus, shoulder and elbow function are preserved, but finger motion is absent. Finger flexion has been reconstructed by tendon or nerve transfers. Finger extension has been restored ineffectively by attaching the extensor tendons to the distal aspect of the dorsal radius (termed tenodesis) or by tendon transfers. In these palsies, supinator muscle function is preserved, because innervation stems from the C-6 root. The feasibility of transferring supinator branches to the posterior interosseous nerve has been documented in a previous anatomical study. In this paper, the authors report the clinical results of supinator motor nerve transfer to the posterior interosseous nerve in 4 patients with a C7–T1 root lesion. Methods Four adult patients with C7–T1 root lesions underwent surgery between 5 and 7 months postinjury. The patients had preserved motion of the shoulder, elbow, and wrist, but they had complete palsy of finger motion. They underwent finger flexion reconstruction via transfer of the brachialis muscle, and finger and thumb extension were restored by transferring the supinator motor branches to the posterior interosseous nerve. This nerve transfer was performed through an incision over the proximal third of the radius. Dissection was carried out between the extensor carpi radialis brevis and the extensor digitorum communis. The patients were followed up as per regular protocol and underwent a final evaluation 12 months after surgery. To document the extent of recovery, the authors assessed the degree of active metacarpophalangeal joint extension of the long fingers. The thumb span was evaluated by measuring the distance between the thumb pulp and the lateral aspect of the index finger. Results Surgery to transfer the supinator motor branches to the posterior interosseous nerve was straightforward. Twelve months after surgery, all patients were capable of opening their hand and could fully extend their metacarpophalangeal joints. The distance of thumb abduction improved from 0 to 5 cm from the lateral aspect of the index finger. Conclusions Transferring supinator motor nerves directly to the posterior interosseous nerve is effective in at least partially restoring thumb and finger extension in patients with lower-type injuries of the brachial plexus.


Cureus ◽  
2020 ◽  
Author(s):  
Garrett Wegerif ◽  
Venus Barlas ◽  
Barkat Ali ◽  
Gregory Borah

PeerJ ◽  
2020 ◽  
Vol 8 ◽  
pp. e9843
Author(s):  
James Hirose ◽  
Atsushi Nishikawa ◽  
Yosuke Horiba ◽  
Shigeru Inui ◽  
Todd C. Pataky

Uncanny valley research has shown that human likeness is an important consideration when designing artificial agents. It has separately been shown that artificial agents exhibiting human-like kinematics can elicit positive perceptual responses. However the kinematic characteristics underlying that perception have not been elucidated. This paper proposes kinematic jerk amplitude as a candidate metric for kinematic human likeness, and aims to determine whether a perceptual optimum exists over a range of jerk values. We created minimum-jerk two-digit grasp kinematics in a prosthetic hand model, then added different amplitudes of temporally smooth noise to yield a variety of animations involving different total jerk levels, ranging from maximally smooth to highly jerky. Subjects indicated their perceptual affinity for these animations by simultaneously viewing two different animations side-by-side, first using a laptop, then separately within a virtual reality (VR) environment. Results suggest that (a) subjects generally preferred smoother kinematics, (b) subjects exhibited a small preference for rougher-than minimum jerk kinematics in the laptop experiment, and that (c) the preference for rougher-than minimum-jerk kinematics was amplified in the VR experiment. These results suggest that non-maximally smooth kinematics may be perceptually optimal in robots and other artificial agents.


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