scholarly journals The spinal nerves that constitute the plexus lumbosacrales of porcupines (Hystrix cristata)

2009 ◽  
Vol 54 (No. 4) ◽  
pp. 194-197
Author(s):  
A. Aydin ◽  
G. Dinc ◽  
S. Yilmaz

In this study, the spinal nerves that constitute the plexus lumbosacrales of porcupines (<I>Hystrix cristata</I>) were investigated. Four porcupines (two males and two females) were used in this work. Animals were appropriately dissected and the spinal nerves that constitute the plexus lumbosacrales were examined. It was found that the plexus lumbosacrales of the porcupines was formed by whole rami ventralis of L1, L2, L3, L4, S1 and a fine branch from T15 and S2. The rami ventralis of T15 and S2 were divided into two branches. The caudal branch of T15 and cranial branch of S2 contributed to the plexus lumbosacrales. At the last part of the plexus lumbosacrales, a thick branch was formed by contributions from the whole of L4 and S1, and a branch from each of L3 and S2. This root gives rise to the nerve branches which are disseminated to the posterior legs (caudal gluteal nerve, caudal cutaneous femoral nerve, ischiadic nerve). Thus, the origins of spinal nerves that constitute the plexus lumbosacrales of porcupine differ from rodantia and other mammals.

2018 ◽  
Vol 52 (1-4) ◽  
pp. 1-9 ◽  
Author(s):  
MT Hussan ◽  
MS Islam ◽  
J Alam

The present study was carried out to determine the morphological structure and the branches of the lumbosacral plexus in the indigenous duck (Anas platyrhynchos domesticus). Six mature indigenous ducks were used in this study. After administering an anesthetic to the birds, the body cavities were opened. The nerves of the lumbosacral plexus were dissected separately and photographed. The lumbosacral plexus consisted of lumbar and sacral plexus innervated to the hind limb. The lumbar plexus was formed by the union of three roots of spinal nerves that included last two and first sacral spinal nerve. Among three roots, second (middle) root was the highest in diameter and the last root was least in diameter. We noticed five branches of the lumbar plexus which included obturator, cutaneous femoral, saphenus, cranial coxal, and the femoral nerve. The six roots of spinal nerves, which contributed to form three trunks, formed the sacral plexus of duck. The three trunks united medial to the acetabular foramen and formed a compact, cylindrical bundle, the ischiatic nerve. The principal branches of the sacral plexus were the tibial and fibular nerves that together made up the ischiatic nerve. Other branches were the caudal coxal nerve, the caudal femoral cutaneous nerve and the muscular branches. This study was the first work on the lumbosacral plexus of duck and its results may serve as a basis for further investigation on this subject.


2004 ◽  
Vol 1 (1) ◽  
pp. 64-71 ◽  
Author(s):  
Eva Maria Lang ◽  
Jörg Borges ◽  
Thomas Carlstedt

Object. The purpose of this study was to analyze therapeutic possibilities and clinical outcomes in patients with lumbosacral plexus injuries to develop surgical concepts of treatment. Methods. In a retrospective investigation 10 patients with injuries to the lumbosacral plexus were evaluated after surgery. The patients were assessed clinically, electrophysiologically, and based on the results of magnetic resonance imaging and computerized tomography myelography. In most patients a traction injury had occurred due to severe trauma that also caused pelvic fractures. In most cases the roots of the cauda equina of the lumbosacral plexus had ruptured. In cases of spinal root ruptures repair with nerve grafts were performed. In cases in which proximal stumps of the plexus could not be retrieved palliative nerve transfers by using lower intercostals nerves or fascicles from the femoral nerve were performed. Conclusions. Lesions of the proximal spinal nerves and cauda equina occur in the most serious lumbosacral plexus injuries. Patients with such injuries subjected to reconstruction of spinal nerves, repair of ventral roots in the cauda equina, and nerve transfers recovered basic lower-extremity functions such as unsupported standing and walking.


2009 ◽  
Vol 54 (No. 7) ◽  
pp. 333-339 ◽  
Author(s):  
A. Aydin

In this study the nerves originating from the plexus lumbosacrales of porcupines (<I>Hystrix cristata</I>) were investigated. Four porcupines (two males and two females) were used. The plexus lumbosacrales of animals were appropriately dissected and dissemination of pelvic limb nerves originating from the plexus lumbosacrales was examined. The nerves originated from the plexus lumbosacrales of porcupines (<I>Hystrix cristata</I>): iliohypogastric nerve from T15, ilioinguinal nerve (on the left side of only one animal) genitofemoral and lateral femoral cutaneous nerves from T15 and L1, the femoral and obturator nerves from T15, L1, L2 and L3. The femoral nerve divided into two as the common dorsal digital nerve I and II after it branched into motor and skin nerves. The cranial gluteal nerve originated from L3 and L4 in males and from only L3 in females. The caudal gluteal nerve and the caudal femoral cutaneous and sciatic nerves originated from the common root which was formed by the union of L3, L4 and S1 in one animal, and by the union of L3, L4, S1 and S2 in the three other animals. The sciatic nerve divided into the tibial and fibular nerve. The fibular nerve divided into two as the common dorsal digital nerve III and IV, and extended after branching in one direction to extensor muscles. The tibial nerve divided into the common palmares digital nerve I, II, III and IV, and extended after branching into the cutaneous surae caudales nerve and rami muscle distales. The cutaneous surae caudales nerve divided into the common palmar and dorsal digital nerve V. The pudendal and caudal rectal nerves originated from S2 in three animals and from S1 in the remaining animal. In the point of origin from the branches of spinal nerves originating from the plexus lumbosacrales, and also in the absence of the ilioinguinal nerve (on left side abroad of only one animal), originating from T15 and L1 of the genitofemoral and lateral femoral cutaneous nerves, from T15 of the iliohypogastric nerve, the studied porcupines differed from rodentia and other mammals


Author(s):  
M. A. Martinez-Pereira ◽  
E. M. Rickes

In this study, the spinal nerves that constitute the lumbosacral plexus (plexus lumbosacrales) (LSP) and its distribution in Chinchilla lanigera were investigated. Ten chinchillas (6 males and 4 females) were used in this research. The spinal nerves that constitute the LSP were dissected and the distribution of pelvic limb nerves originating from the plexus was examined. The iliohypogastric nerve arose from L1 and L2,, giving rise to the cranial and caudal nerves, and the ilioinguinal nerve arose from L3. The other branch of L3 gave rise to the genitofemoral nerve and 1 branch from L4 gave rise to the lateral cutaneous femoral nerve. The trunk formed by the union of L4–5 divided into medial (femoral nerve) and lateral branches (obturator nerve). It was found that the LSP was formed by all the ventral branches of L4 at L6 and S1 at S3. At the caudal part of the plexus, a thick branch, the ischiadic plexus, was formed by contributions from L5–6 and S1. This root gave rise to the nerve branches which were disseminated to the posterior limb (cranial and caudal gluteal nerves, caudal cutaneous femoral nerve and ischiadic nerve). The ischiadic nerve divided into the caudal cutaneous surae, lateral cutaneous surae, common fibular and tibial nerve. The pudendal nerve arose from S1–2 and the other branch of S2 and S3 formed the rectal caudal nerve. The results showed that the origins and distribution of spinal nerves that constitute the LSP of chinchillas were similar to those of a few rodents and other mammals.


Phlebologie ◽  
2010 ◽  
Vol 39 (02) ◽  
pp. 77-81 ◽  
Author(s):  
A. G. Krasznai ◽  
E. C. M. Bollen ◽  
J. C. van der Kley ◽  
R. J. Th. J. Welten ◽  
G. M. J. M. Welten

SummaryOur aim is to describe the results of a new short stripping technique for the treatment of the incompetent great saphenous vein (GSV) using a new developed surgical device. Patients, methods: 397 patients (498 legs) were treated with the InvisiGrip® Vein Stripper, which removes the GSV through a single groin incision, endovascular cutting and antegrade stripping by inversion. We reported the surgical success rate and postprocedural complications. Results: The mean age was 51 years, 74% were women. The success rate for removal of the GSV was 95%. The 23 failures were half patient related, half device related. In 82% of the strippings, one or two attempts were needed to successfully remove the GSV, which was done by invagination in 80%. Age, gender, BMI ≥30 kg/m2 and male GSV diameter were not associated with the number of attempts. Superficial wound infection, haematoma and temporary saphenous and femoral nerve injury occurred in 6 (1.6%), 0, 3 (0.8%) and 7 (1.9%) patients, respectively. Conclusion: The InvisiGrip® is highly successful for the removal of the GSV using short inverting stripping. Furthermore, it is simple, safe, associated with good cosmetic results and no preoperative selection of patients is necessary.


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