Murat ALTAŞ, Mustafa ARAS, Boran URFALI, Atila YILMAZ

Conjoined lumbosacral nerve roots

Konjenital anatomik anomaliler arasında lumbosakral sinir kökü anomalileri nadir görülen bir gruptur. Literatür ince-lendiğinde çok farklı lumbosakral sinir kökü anomalilerinin raporlandığı gözlenebilmektedir. Bu anomalilerin alt grupla-rı kabaca bifid, birleşik yapı, transvers yönde veya anostomozlaşmış yapıda olmaları şeklinde sınıflandırılmaktadır. Görüntüleme yöntemlerinin gelişmesinden önce bu yapılar otopsi çalışmaları ve lumbar disk herniasyonuna yönelik cerrahi girişimler sırasında insidental olarak gözlenmiştir ve çoğunlukla asemptomatikirler.

Anahtar Kelimeler:

Lumbosakral sinir kökü, anomali, birleşik sinir kökleri.

Conjoined lumbosacral nerve roots

Lumbosacral nerve root anomalies are a rare group of congenital anatomical anomalies. Various types of anomalies of the lumbosacral nerve roots have been documented in the available international literature. Tthese anomalies may consist of a bifid, conjoined structure, of a transverse course or of a characteristic anastomized appearance. Firstly described as an incidental finding during autopsies or surgical procedures performed for lumbar disk herniations and often asymptomatic, lumbosacral nerve root anomalies have been more frequently described in the last years due to the advances made in radiological diagnosis.

Keywords:

Lumbo-sacral nerve root, anomaly, conjoined nerve-roots.,

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Scuderi GJ, Vaccaro AR, Brusovanik GV, et al. Conjoined lumbar nerve roots; a frequently underappreciated congeni- tal abnormality. J Spinal Disord Tech 2004; 17 (2): 86-93.
Lotan R, Al-Rashdi A,Yee A, Finkelstein J. Clinical features of conjoined lumbosacral nerve roots versus lumbar inter- vertebral disc herniations. Eur Spine J 2010 19 (7):1094-8.
Bouchard JM, Copty M, Langelier R. Preoperative diagno- sis of conjoined root anomaly with herniated lumbar discs. Surg Neurol 1978; 10 (4): 229-31.
Cail WS, Butler AB. Conjoined lumbosacral nerve roots. Di- agnosis with metrizamide myelography. Surg Neurol 1983; 20 (2):113-9.
Artico M, Carloia S, Piacentini M, Ferretti G, Dazzi M, Franchitto S, Bronzetti E. Conjoined lumbosacral nerve roots: observations on three cases and review of the litera- ture. Neurocirugía 2006; 17 (1): 54-9.
Cannon BW, Hunter SE, Picaza JA. Nerve root anomalies in lumbar disc surgery. J Neurosurg 1962; 19 (3): 208-14.
Kadish LJ, Simmons EH. Anomalies of the lumbo-sacral nerve roots. An anatomical investigation and myelographic study. J Bone Joint Surg Br 1984; 66 (3) : 411-6.
Postacchini F., Urso S., Ferro L.Lumbosacral nerve root anomalies. J Bone Joint Surg A 1982; 64 (5): 721-9.
Kikuchi S, Hasue M, Nishiyama K, Ito T. Anatomic and clini- cal studies of radicular symptoms. Spine 1984; 9 (1): 23-30.
Pamir MN, Ozek MM, Ozer AF, Keles GE, Erzen C. Surgi- cal considerations in patients with lumbar spinal root anom- alies. Paraplegia 1992; 30 (5): 370-5
White JG III, Strait TA, Binkley JR, et al. Surgical treatment of 63 cases of conjoined nerve roots. J Neurosurg. 1982; 56 (1): 114-7