Influence of the anatomy of the proximal articular surface of the trapezium (PAST) and the trapezoidal articular surface of the trapezium (TRAST) in cup placement during trapeziometacarpal arthroplasty.

The influence of the anatomy of the proximal articular surface of the trapezium (PAST) and the trapezoidal articular surface of the trapezium (TRAST) on cup placement during trapeziometacarpal arthroplasty was retrospectively evaluated on 56 preoperative anteroposterior radiographs of patients who underwent surgery for trapeziometacarpal osteoarthritis. The percentage coverage of the prosthetic cup by the PAST and the available height of the trapezium were calculated. In 39% of cases, there was a significant difference (up to a mean 4.

Reconstruction of the distal radius using a double-barrel vascularized fibula flap: A case series.

Treatment of distal radius tumor sometimes requires sacrificing the epiphysis. We propose adding to currently available reconstruction options a technique using a double-barrel vascularized fibula flap fixed distally to the first carpal row, conserving midcarpal mobility. We monitored 4 cases of Campanacci III giant-cell tumor and 2 cases of osteosarcoma.

Scaphometacarpal arthroplasty: a report of ten cases of trapeziometacarpal prosthesis and trapeziectomy revision.

Loosening of the trapezial component is a main cause of failure of trapeziometacarpal prostheses. This report presents the preliminary results of scaphometacarpal prostheses used for revision of trapeziometacarpal prostheses and failed trapeziectomies. A retrospective multicentre study was conducted on ten patients.

Computational Study of the Ene/Rearrangement Reaction between (FC)B═NMe, , and Acetonitrile: Reactant-Catalyzed Mechanism of the Ketenimine-Nitrile-Like Rearrangement.

The reaction between (FC)B═NMe, , and acetonitrile at low temperature in pentane yields a bora-acetonitrile rather than the expected coordination complex. This appears to arise from the two undergoing an ene reaction followed by a rearrangement analogous to a ketenimine-nitrile rearrangement. Computational studies indicate that mechanistic steps suggested for the latter require energies too large for the reaction to take place under the experimental conditions.

Free vascularised fibular flap harvesting in children: An analysis of donor-site morbidity.

Background: The free vascularised fibular flap (FVFF) is widely used to treat bone defects, although it must be harvested from a healthy site. The objective of this study was to assess clinical morbidity and radiological changes at the FVFF donor site in children.

Hypothesis: Distal fibular stabilisation using a tibial strut decreases the prevalence of valgus ankle deformity.

[Not Available].

The early management of pediatric hand burns includes surgical treatment, medical follow up and prevention of abnormal scarring by splits and/or pressure garment therapy. The aim of this review was to find the best available evidence in the literature on the surgical part of this management. This review started with a search in the PubMed database for the keywords, hand AND/OR child AND/OR burn.

[Recovery of elbow flexion in post-traumatic C5-C6 and C5-C6-C7 palsy: retrospective dual-center study comparing single and double nerve transfer].

Twenty-nine patients underwent single (n=15) or double (n=14) nerve transfer for post-traumatic elbow flexion palsy. Patients averaged 30.2 years, with a mean preoperative delay of six months and postoperative follow-up of 34.

Finger replantation: surgical technique and indications.

In this article, we discuss the surgical technique of finger replantation in detail, distinguishing particularities of technique in cases of thumb amputation, children fingertip replantation, ring finger avulsion, and very distal replantations. We emphasize the principles of bone shortening, the spare part concept, the special importance of nerve sutures and the use of vein graft in case of avulsion or crushing. However, even if finger replantation is now a routine procedure, a clear distinction should be made between revascularization and functional success.

Continuous in situ diffusion of ropivacaine for ambulatory congenital hand disorders surgery in young children.

Pediatric ambulatory surgery presents a specific set of challenges to the anesthesiologist. Similarly to adult ambulatory surgery, we report four ambulatory surgical procedures in two young children with congenital hand disorders. For each surgical procedure pain was controlled with continuous in situ infusion of ropivacaine.

[Evaluation of postoperative pain and early functional results in the treatment of carpometacarpal joint arthritis. Comparative prospective study of trapeziectomy vs. MAIA(®) prosthesis in 74 female patients].

Unlabelled: Trapeziectomy has been the basis of basal thumb arthritis surgical treatment since the 1950s. This resection arthroplasty has been continuously refined (soft-tissue interposition, ligament reconstruction, spacer implantation, etc.) without leading to a dramatic outcome improvement.

The role of three-ligament tenodesis in the treatment of chronic scapholunate instability.

Restoring ligamentous control in dissociative carpal instability is a major issue in protecting against osteoarthritis. We present clinical and radiological results for 20 patients who underwent flexor carpi radialis three-ligament tenodesis and were prospectively reviewed at a mean follow-up of 25.1 months.

Vascularized proximal fibular epiphyseal transfer: two cases.

Vascularized proximal fibular epiphyseal transfer in children enables reconstruction of long-bone epiphyseal defect, while conserving axial growth potential. This technique was applied in two children for diaphyseal-epiphyseal reconstruction of the proximal humerus and distal radius respectively, using a graft vascularized only by the anterior tibial artery. There were no major complications during harvesting.

[Digital replantation in children].

Digital amputations in children are usually caused by crush or avulsion injuries (door hinge, bicycle chain, etc.). The preponderance of this mechanism of injury means a survival rate generally lower than in adults.

Arthroscopic release of shoulder contracture secondary to obstetric brachial plexus palsy: retrospective study of 18 children with an average follow-up of 4.5 years.

Introduction: Children affected by obstetric brachial plexus palsy have an internal rotation contracture of the shoulder and a deformed glenohumeral joint. In 2003, Pearl proposed doing an arthroscopic release of the shoulder to restore external rotation and allow the glenohumeral joint to remodel. The goal of the current study was to evaluate the active and passive shoulder external rotation range of motion and glenohumeral joint remodelling in children treated with arthroscopic-directed release.

Distal radius reconstruction using a split vascularized fibula. Two cases following giant cell tumor resection.

We propose a distal radius reconstruction technique that provides a strong stable wrist while preserving mediocarpal range of motion. Two cases of giant cell tumor of the distal end of the radius were treated. The technique included en bloc resection of the lesion followed by wrist reconstruction with partial arthrodesis.

[The free groin flap utility. About 19 cases].

Introduction: The pedicled groin flap, well known for the hand resurfacing, has first been described by Mac Gregor in 1972. But the free groin flap is unpopular because of its short (5mm) and small artery (caliber 1,5 to 2mm) and a bulky aspect. The purpose of this study is to show its interest by weighing up the pros and cons of its advantages and of its disadvantages.

Is combining massive bone allograft with free vascularized fibular flap the children's reconstruction answer to lower limb defects following bone tumour resection?

Purpose Of The Study: Bone tumours are frequent conditions in children, and their surgical resection may lead to extensive defects which reconstruction is often challenging. Indeed, local conditions do not promote bone healing, and the achieved surgical result requires to be life-lasting. Capanna suggested a reconstruction technique combining massive allograft and free vascularized fibular flap.

[Free temporoparietal flap in hand coverage. Report of three cases].

Hands defect coverage needs thin and pliable flaps. Few free flaps such as free temporoparietal flap are adequate. It provides moderate donor scar and unique range of motion for tendinous coverage.

[Postoperative analgesia following trapeziectomy with continuous intra-articular infusion of ropivacaïne versus continuous perineural infusion. A prospective randomised study].

Unlabelled: A prospective randomised study on 46 patients was performed to evaluate postoperative analgesia after trapezectomy. We compare the efficacy of an in situ catheter 777 (ISC) positioned by the surgeon in the space of the trapezectomy (26 patients) with an axilliary perineural catheter (APC) positioned preoperatively by the anaesthetist (20 patients). The patients were followed-up postoperatively for 48 hours and assessed at 3, 7, 24 and 48 hours, recording pain (VAS), consumption of intravenous rescue analgesia and recovery of sensory and motor function.

End-to-side neurorrhaphy for median nerve repair after elbow tumor resection: case report.

We report a case of a median to ulnar end-to-side neurorrhaphy with epineurectomy but without fascicular donor nerve section. Surgery was performed for the curative treatment of an elbow synovial sarcoma at the level of the elbow that necessitated resection of 10 cm of the median nerve. The patient was followed up for 24 months.

[Primary ray resection as an alternative to microsurgical replantation in the management of ring finger avulsion].

Objectives: Ray resection of the metacarpal with conservation of the proximal end is a technique of management of complete ring avulsion injuries in the emergency situation. This study is a functional evaluation of the technique in comparison to replantation.

Methods: The present series includes 11 patients, average age of 35 years, predominantly manual workers, operated between October 2005 and July 2007.

[Thumb duplication].

Thumb duplication is one of the most frequent congenital abnormality. Treatment is rarely limited to surgical amputation of one of the thumb duplicate. Wassel proposed a classification of seven categories based on the level of skeletal division, the most frequent being the type IV.

[Second toe transfer in congenital hand differences].

In congenital hand differences, microsurgical toe transfer involves the creation of one or several rays in a child that never possessed them before. Second toe transplantation was uniformly used in this series that include 65 consecutive cases. Etiologies were represented by symbrachydactyly, constriction band syndrome or central cleft hand.

[Reconstruction of the trapeziometacarpal joint and the first metacarpal bone by reversed free osteocutaneous dorsalis pedis flap].

A case of reconstruction after first metacarpal resection by reversed free vascularized osteocutaneous pedis flap is presented. This procedure avoids bone resorption and preserves the trapezio metacarpal joint contrary to conventional bone graft. A double rotation is applied to the flap: the head of the metatarsal becomes proximal and the palmar side becomes dorsal.