scholarly journals Clinical importance of anatomical variants of sciatic nerve in relation to the piriformis muscle

2012 ◽  
Vol 01 (04) ◽  
pp. 160-164
Author(s):  
Rashmi Deopujari ◽  
Dibya Kishore Satpathi ◽  
Ashutosh S. Mangalgiri
Keyword(s):  
Sciatic Nerve ◽  
Clinical Presentation ◽  
Clinical Symptoms ◽  
Clinical Importance ◽  
Common Peroneal Nerve ◽  
Low Back ◽  
Piriformis Muscle ◽  
Anatomical Variant ◽  
Back Ache ◽  
Unusual Variant

Abstract Background and aims : The sciatic nerve usually emerges below the Piriformis muscle. Each anatomical variant of sciatic nerve is associated with a specific clinical presentation. The aim of the study was to identify the variants of sciatic nerve and to discuss their clinical importance. Materials and methods : Twenty one embalmed cadavers of known age and sex were used for this study. Gluteal regions of both sides were dissected to expose sciatic nerve. Variation of sciatic nerve in relation to piriformis was observed. Results and Conclusion: Out of the 42 dissected specimens - Five showed variations in sciatic nerve. Three specimens (two on right and one on left side) displayed common peroneal branch passing through piriformis. Three specimens (two on right and one on left side) showed tibial nerve emerging below piriformis.ln one specimen on left side common peroneal nerve emerged as two parts in relation to piriformis - one passing through piriformis and another below piriformis. A very unusual variant in which the tibial and common peroneal components of sciatic nerve were sandwiched between the three heads of piriformis muscle is also reported here in one case of right side. These variants are usually misdiagnosed in most of the cases due to similarity of clinical symptoms with low back ache and sciatica. Therefore the possibility of each such variant should be kept in mind by the clinicians.

scholarly journals Unilateral higher division of sciatic nerve and its clinical importance

2019 ◽  
Vol 8 (1) ◽  
pp. 355
Author(s):  
Sonia Jandial
Keyword(s):  
Sciatic Nerve ◽  
Coming Out ◽  
Peroneal Nerve ◽  
Tibial Nerve ◽  
Clinical Importance ◽  
Common Peroneal Nerve ◽  
Gluteal Region ◽  
Piriformis Muscle ◽  
Long Course ◽  
The Right

The sciatic nerve has a long course right from the pelvis to the apex of the popliteal fossa. The point of division of the sciatic nerve into tibial and common peroneal nerves is very variable. The variation in the division of the sciatic nerve described in the present study should be helpful for anaesthetists and orthopaedic surgeons. While doing the dissection and teaching of the gluteal region in the Post Graduate Department of Anatomy, government medical college, Jammu, it was found that on the left side tibial nerve and common peroneal nerve were present instead of sciatic nerve. It meant that the main nerve that is the sciatic nerve had already been divided into its terminal branches in the pelvis region. Both tibial and common peroneal nerve were seen coming out of the pelvis below the piriformis muscle, while on the right side there were no variation. The sciatic nerve was seen coming out of the pelvis below the piriformis muscle as usual. Because of this high division of the sciatic nerve in the pelvis, there are many complications like failed sciatic nerve block during anaesthesia while performing surgery, but high division of the sciatic nerve may result in escape of either tibial nerve or common peroneal nerve. The gluteal region, back of the thigh and leg of the lower limb were dissected to study further course of tibial nerve and the common peroneal nerve. Photographs were also taken.

scholarly journals VARIANT RELATION OF THE SCIATIC NERVE TO THE PIRIFORMIS MUSCLE: A CADAVERIC STUDY FROM NORTH INDIA. Variaciones en la relación del nervio ciático con el músculo piriforme: Un estudio cadavérico en India del Norte

2016 ◽  
Vol 8 (1) ◽  
pp. 38-42
Author(s):  
Virendra Budhiraja ◽  
Rakhi Rastogi ◽  
Sanjeev K Jain ◽  
Nidhi Sharma ◽  
Rohin Garg ◽  
...  
Keyword(s):  
Sciatic Nerve ◽  
Clinical Outcomes ◽  
Peroneal Nerve ◽  
Tibial Nerve ◽  
Common Peroneal Nerve ◽  
North India ◽  
Piriformis Muscle ◽  
The Common ◽  
Long Course ◽  
Relationship Of

El nervio ciático sale de la pelvis y entra en la  región glútea debajo del  músculo piriforme como un único tronco. Tiene dos componentes: el nervio peroneo común y el  nervio tibial. La relación variable del nervio ciático con el músculo piriforme y su longitud hace que el nervio sea vulnerable a las lesiones. Estudiamos la relación variable del nervio ciático en sesenta extremidades inferiores de treinta cadáveres y encontramos el nervio ciático emergiendo indiviso por debajo del músculo piriforme en el 68,33% de los casos, pero en el 31,66% el nervio ciático estaba dividido arriba en la pelvis. En el 18,33% de los casos el componente peroneo común emergió arriba y en el 13,33% de los casos emergió a través del  músculo piriforme. Pensamos que tener un conocimiento adecuado sobre la anatomía del  nervio ciático es bueno para los resultados clínicos.  Sciatic nerve leaves the pelvis and enters the gluteal region below the piriformis muscle as single trunk. It has two components common peroneal nerve and the tibial nerve. The variable relationship of sciatic nerve with the piriformis muscle and its long course makes the nerve vulnerable to injury. We studied sciatic nerve variable relation in sixty lower extremities of thirty cadavers and found the sciatic nerve emerging undivided below the piriformis muscle in 68.33% of cases but in 31.66% the sciatic nerve divided high in the pelvis. In 18.33% cases the common peroneal component emerged above and in 13.33% of cases it emerged through the piriformis muscle. We think proper knowledge of the anatomy of the sciatic nerve is good for clinical outcomes

scholarly journals Composite Anatomical Variations between the Sciatic Nerve and the Piriformis Muscle: A Nepalese Cadaveric Study

2020 ◽  
Vol 2020 ◽  
pp. 1-6
Author(s):  
Ameet Kumar Jha ◽  
Prakash Baral
Keyword(s):  
Sciatic Nerve ◽  
Surgical Intervention ◽  
Anatomical Variations ◽  
Low Back ◽  
Type B ◽  
Piriformis Muscle ◽  
Structural Variations ◽  
Unsuccessful Attempt ◽  
Type C ◽  
Popliteal Block

Piriformis syndrome is a rare syndrome which is one of the main causes of nondiscogenic sciatica causing severe low back pain due to entrapment of sciatic nerve either by the hypertrophy or by inflammation of the piriformis muscle. We have carried out dissection in 20 Nepalese cadavers. Out of 40 dissected gluteal regions, 37 exhibited typical appearance of sciatic nerve, piriformis muscle, and their relations resembling type-a, whereas 3 gluteal regions showed composite structural variations resembling type-b and type-c based on Beaton and Anson’s classification. Knowledge pertaining to such variations will be helpful during a surgical intervention in the gluteal region and in turn reduces the risk of injuring these nerves which are more susceptible to damage. Our study reports such variations in Nepalese population which will be helpful during evaluation of the pain induction in various test positions and also useful for analysis of the range of the neurological deficiency in sciatic nerve neuropathies. The present study also explains the basis of the unsuccessful attempt of the sciatic nerve block during popliteal block anaesthesia.

scholarly journals A CASE STUDY: ANUVASANA BASTI WITH KETAKYADI TAILAM IN LOW BACKACHE

2021 ◽  
Vol 12 (3) ◽  
pp. 1-2
Author(s):  
Gopitha P G ◽  
Joshi George
Keyword(s):  
Low Back Pain ◽  
Clinical Symptoms ◽  
Positive Family History ◽  
Low Back ◽  
Muscle Strain ◽  
Sacral Region ◽  
Back Ache ◽  
History Of ◽  
Entire Treatment

Low back ache is the pain in the lumbo-sacral region triggered by combination of factors like muscle strain, overuse, injury or trauma to muscles, ligaments and disc that support the spine. A diagnosed case of Low back ache came with complaints of pain over low back region, stiffness and limitation in the movements of lumbo-sacral joint since 2 years. There was no history of trauma or fall and other systemic illness. A positive family history was noted. In Ayurveda, it can be correlated with Asthigata vata and deranged Vata dosha is the main cause for pain. The primordial treatment for Vata dushti is Basti, especially Anuvasana vasti. Ketakyadi taila is very effective in Asthigata vata. So Anuvasana Basti with Ketakyadi tailam is administered continuous 9 days. The clinical symptoms like low back pain and stiffness got relieved markedly on 5th day itself. After the entire treatment the condition of the patient improved remarkably.

scholarly journals Bilateral eventration of sciatic nerve

2010 ◽  
Vol 50 (180) ◽  
Author(s):  
T Sharma ◽  
RK Singla ◽  
M Lalit
Keyword(s):  
Sciatic Nerve ◽  
Peroneal Nerve ◽  
Tibial Nerve ◽  
Common Peroneal Nerve ◽  
Leg Pain ◽  
Piriformis Syndrome ◽  
Piriformis Muscle ◽  
Male Cadaver ◽  
The Common ◽  
Popliteal Block

During routine dissection of a 60 years male cadaver, it was observed that the two divisions of sciatic nerve were separate in the gluteal region on both the sides with the tibial nerve passing below the piriformis and the common peroneal nerve piercing the piriformis muscle. The abnormal passage of the sciatic nerve (SN), the common peroneal nerve (CPN), and the tibial nerve (TN), either through the piriformis or below the superior gemellus may facilitate compression of these nerves. Knowledge of such patterns is also important for surgeons dealing with piriformis syndrome which affects 5-6% of patients referred for the treatment of back and leg pain. A high division may also account for frequent failures reported with the popliteal block. Keywords: eventration, piriformis muscle, piriformis syndrome, sciatic nerve

scholarly journals Report of a Novel Bilateral Variation of Sciatic and Inferior Gluteal Nerve

2021 ◽  
Author(s):  
Rahim Golmohammadi ◽  
◽  
Ali Delbari ◽  
Keyword(s):  
Sciatic Nerve ◽  
Peroneal Nerve ◽  
Gluteus Maximus ◽  
Common Peroneal Nerve ◽  
Anatomical Variations ◽  
Piriformis Muscle ◽  
Risk Of Injury ◽  
Increase Risk ◽  
Inferior Gluteal Nerve ◽  
Pass Through

The sciatic nerve is thickest nerve of sacral plexus which innervates many muscles and vast areas of skin of lower limb. It leaves pelvis via the greater sciatic foramen, emerge into gluteal region by passing under piriformis muscle, and descends beneath the gluteus maximus to divide into its terminal branches; tibial and common peroneal nerve at the superior angle of popliteal fossa. In some cases, sciatic nerve divides into tibial and common peroneal nerve in a higher level and one of them or both pass through or over the piriformis muscle. As in conditions like intramuscular injections, gluteal surgeries and piriformis syndrome such variations may increase risk of injury, it is important for medical team to be aware of them. In this paper, by reporting many variations in a cadaver, we emphasize the importance of anatomical variations especially for surgeons and nurses.

Epidural Steroid In Low Back Ache

2011 ◽  
Vol 1 (5) ◽  
pp. 166-167
Author(s):  
Dr. B. L. Khajotia Dr. B. L. Khajotia ◽  
◽  
Dr. Neelam meena
Keyword(s):  
Low Back ◽  
Back Ache ◽  
Epidural Steroid

Role of Panchakarma in management of Gridhrasi

2016 ◽  
Vol 1 (2) ◽  
Author(s):  
Imlikumba . ◽  
Parappagoudra Mahesh ◽  
BA Lohith ◽  
K Singha ◽  
S Lalravi
Keyword(s):  
Modern Science ◽  
Stressful Life ◽  
Low Back ◽  
Lateral Aspect ◽  
Effective Measure ◽  
Main Complaint ◽  
Different Types ◽  
Back Ache ◽  
Different Dimensions

Panchakarma is a fruitful measure and its extensive efficacies are classified in different dimensions to cure different types of complicated diseases. Vamana, Virechana, Niruha, Anuvasana and Nasya are the five procedures and subsequently even Vamana, Virechana, Basti, Nasya and Rakta Mokshana are broadly termed as Panchakarma in day to day practices.The new diseases are evolving with intense gravity and therefore to combat those, Panchakarma is a very effective measure. In present era competition and advancement have led to hectic and stressful life, man has eventually forgotten the absolute enjoyment and solitary affection of nature and as a result is facing many health problems. Gridhrasi is no exception, it is correlated to sciatica in modern science where low back ache radiating to toes in the lateral aspect of the thigh associated with stiffness is the main complaint.

The relation of the sciatic nerve and of its subdivisions to the piriformis muscle

1937 ◽  
Vol 70 (1) ◽  
pp. 1-5 ◽  
Author(s):  
Lindsay E. Beaton ◽  
Barry J. Anson
Keyword(s):  
Sciatic Nerve ◽  
Piriformis Muscle
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