The role of imaging in single benign peripheral nerve tumours: A practical review for surgeons

The role of imaging in single benign peripheral nerve tumours: A practical review for surgeons

456 Congrès annuel de la Société fran¸caise de chirurgie de la main / Hand Surgery and Rehabilitation 35 (2016) 423–491 outcomes. The aim of the stu...

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Congrès annuel de la Société fran¸caise de chirurgie de la main / Hand Surgery and Rehabilitation 35 (2016) 423–491

outcomes. The aim of the study was to explore the outcome of nerve tumours in the context of neurifibromatosis. Methods Retrospective review (1995 to 2011) of patients who fulfilled clinical diagnostic criteria for neurofibromatosis (6 type 1, 5 type 2 and 6 type 3). Surgical management for peripheral nerve tumours were similar, with tumours treated in the same manner as single lesions, enucleation for schwannomas, epineurotomy and biopsy for neurofibromas (unresectable tumours). Preoperative imaging (MRI and ultrasound) determined in most of the cases, whether the tumours were resectable or not. The average number of nervous tumours was variable (3–18). Outcomes of multiple tumours were analysed (recurrence, new tumours, malignant transformation). Results NF1 Recurrences were frequent especially plexiform neurofibromas (6 cases). One malignant transformation was observed, with the appearance of new tumours (mainly neurofibromas) was 1–1.8 years per patient + NF2. No malignant transformation was observed, yet recurrences were frequent (primarily neurofibromas). The appearance of new tumours varied from 1–2 years per patient + NF3 The appearance of new tumours varied in time from 0.8–2.5 years per patient. No malignant transformation was observed, nor recurrence after enucleation. Conclusion Malignant transformation should be suspected when any recent and rapid changes are detected on clinical examination. The preponderance of schwannomas in NF2 accounts for the better prognosis compared to NF1. Neurofibromas require prolonged monitoring due to possible recurrence. Two risks in NF3 are worth monitoring, the transition to an NF2 configuration especially in younger patients and the appearance of new tumours. Whilst a good prognosis can be expected following enucleation, the unpredictable evolution and the existence of transitional forms between different neurofibromatosis requires prolonged follow-up. Disclosure of interest Bénéfice d’un des auteurs par une firme : – soit directement : oui ; – soit par l’intermédiaire d’une association : oui. Versement par une firme à une association : oui. Sans bénéfice pour aucun des auteurs : oui. http://dx.doi.org/10.1016/j.hansur.2016.10.097 CO97

The role of imaging in single benign peripheral nerve tumours: A practical review for surgeons Grégoire Chick 1,∗ , Nadine Hollevoet 2 , Stefano Bianchi 3 Hand and wrist unit, Genève, Switzerland 2 Ghent University Hospital, Ghent, Belgium 3 CIM, Genève, Switzerland ∗ Corresponding author. Adresse e-mail : [email protected] (G. Chick)

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Background The diagnosis of nerve tumour(s) must be suspected in all cases of tumefaction or pain on the path of a nerve exacerbated on percussion. Solitary nerve tumours are primarily schwannomas, but other rare tumours may be present such as intraneural ganglion cysts with controversial origin. Preservation of nerve continuity is the underlying goal for any surgical intervention, irrespective of the type of tumour. Therapeutic outcomes are closely linked to tumour resectability. Resectable tumours grow eccentrically from the nerve, pushing back the fascicle groups without penetrating the perineurium and can be enucleated without disrupting the nerve continuity. Non-resectable tumours infiltrate all constituent elements of the nerve, with nerve fibre damage always occurring upon complete removal. The aim of this study is to examine the role of imaging, and provide the surgeon with a practical guide for its application in predicting the nature and resectability of nerve tumours. Methods Seventy-three patients with single nervous tumours were retrospectively reviewed (1995–2011), with malignant tumours excluded. Patient presentation, physical examination, imaging appearance and macroscopic aspect were analysed. Criteria for resectable and unresectable tumours were established. Results Histological examination revealed 50 resectable tumours (46 schwannomas, 2 intraneural lipomas) and 23 unresectable tumours (5 solitary

neurofibromas, 3 fibrolipomatous hamartoma, 3 intraneural hemangiomas and 11 intraneural ganglion cysts). Patient presentation together with clinical examination often guided the clinician towards the nature of the mass+ however, imaging remained crucial in identifying the resectability. Both ultrasound and MRI confirmed the neural nature of tumours in 90% of cases. However, whilst US was the primary imaging modality, MRI was able to identify tumour type and importantly, determine tumour resectability (80% of cases). Despite robust examination and extensive secondary imaging, it is important to appreciate that in 5% of cases, tumour resectability was only known following an epineurotomy. Conclusion In the vast majority of patients, it is possible to predict tumour resectability, its type and benignity based upon medical imaging. However, confrontation via clinical examination and case-based reasoning remains essential. Disclosure of interest Bénéfice d’un des auteurs par une firme : – soit directement : oui ; – soit par l’intermédiaire d’une association : oui. Versement par une firme à une association : non. Sans bénéfice pour aucun des auteurs: non. http://dx.doi.org/10.1016/j.hansur.2016.10.098 CO98

Rôle de l’auto-efficacité face à la douleur dans le traitement chirurgical du syndrome du canal carpien

Juan-José Hidalgo-Diaz ∗ , Philippe Liverneaux , Santiago-Salazar Botero , Paul Vernet , Sybille Facca SOS Main Hus, Illkirch, France ∗ Auteur correspondant. Adresse e-mail : [email protected] (J.-J. HidalgoDiaz) Certains mauvais résultats après chirurgie du syndrome du canal carpien restent inexpliqués L’hypothèse principale était qu’il existe une corrélation entre l’auto-efficacité face à la douleur et la différence entre la douleur avant et après intervention et l’hypothèse secondaire entre l’auto-efficacité face à la douleur et la différence entre le quick DASH, avant et après intervention. Les dossiers de 64 patients opérés d’un syndrome du canal carpien idiopathique subjectif pur ont été revus. L’évaluation consistait à mesurer le PSEQ2 à partir de 2 questions : – je peux encore atteindre la plupart de mes objectifs dans la vie, malgré la douleur ; – je peux mener une vie normale, malgré la douleur. La douleur et le quick DASH. Il existait une relation inversement proportionnelle entre le PSEQ2 préopératoire d’une part et la douleur préopératoire, la douleur postopératoire et le quick DASH préopératoire d’autre part. On ne trouvait pas de corrélation entre le PSEQ2 préopératoire et le quick DASH postopératoire. Au total, l’auto-efficacité mesurée par le PSEQ2 permet de prédire l’intensité de la douleur après traitement chirurgical du syndrome du canal carpien en l’absence de signes déficitaires sensitifs et ou moteurs et ou de morbidité associée. Déclaration de liens d’intérêts Bénéfice d’un des auteurs par une firme : – soit directement : oui ; – soit par l’intermédiaire d’une association : oui. Versement par une firme à une association : oui. Sans bénéfice pour aucun des auteurs : oui. http://dx.doi.org/10.1016/j.hansur.2016.10.099 CO99

Arthrodèse scapho-capitale et lunarectomie dans la maladie de Kienböck avancée : résultat à plus de 10 ans Amaury Charre 1,∗ , Pierre Mansat 2 , Michel Rongières 2 , Costel Apredoaei 2 , Jacques-Emmanuel Ayel 1 , Stéphanie Delclaux 2 1 Toulouse, France 2 CHU de Toulouse, Toulouse, France ∗ Auteur correspondant. Adresse e-mail : [email protected] (A. Charre)