1.A bilateral gastrocnemius tertius coexisting with a unilateral two-headed plantaris muscle
George TSAKOTOS ; George TRIANTAFYLLOU ; Christos KOUTSERIMPAS ; Maria PIAGKOU
Anatomy & Cell Biology 2024;57(3):459-462
The current cadaveric report aims to present a coexistence of two uncommon variants of the posterior leg compartment. The variations were detected, during classical dissection in an 84-year-old donated male cadaver. On the left lower limb, the gastrocnemius muscle was identified as having a third head that was attached to the lateral head. This variant is known as gastrocnemius tertius muscle and was bilaterally identified. The left-sided plantaris muscle had two distinct heads that fused into a common tendon that was inserted into the calcaneal tuberosity. Knowledge of these variants is important, due to their close relationship with the popliteal neurovascular bundle. Clinicians should be aware, to avoid pitfalls and take them into account in their differential diagnosis.
2.A bilateral gastrocnemius tertius coexisting with a unilateral two-headed plantaris muscle
George TSAKOTOS ; George TRIANTAFYLLOU ; Christos KOUTSERIMPAS ; Maria PIAGKOU
Anatomy & Cell Biology 2024;57(3):459-462
The current cadaveric report aims to present a coexistence of two uncommon variants of the posterior leg compartment. The variations were detected, during classical dissection in an 84-year-old donated male cadaver. On the left lower limb, the gastrocnemius muscle was identified as having a third head that was attached to the lateral head. This variant is known as gastrocnemius tertius muscle and was bilaterally identified. The left-sided plantaris muscle had two distinct heads that fused into a common tendon that was inserted into the calcaneal tuberosity. Knowledge of these variants is important, due to their close relationship with the popliteal neurovascular bundle. Clinicians should be aware, to avoid pitfalls and take them into account in their differential diagnosis.
3.A bilateral gastrocnemius tertius coexisting with a unilateral two-headed plantaris muscle
George TSAKOTOS ; George TRIANTAFYLLOU ; Christos KOUTSERIMPAS ; Maria PIAGKOU
Anatomy & Cell Biology 2024;57(3):459-462
The current cadaveric report aims to present a coexistence of two uncommon variants of the posterior leg compartment. The variations were detected, during classical dissection in an 84-year-old donated male cadaver. On the left lower limb, the gastrocnemius muscle was identified as having a third head that was attached to the lateral head. This variant is known as gastrocnemius tertius muscle and was bilaterally identified. The left-sided plantaris muscle had two distinct heads that fused into a common tendon that was inserted into the calcaneal tuberosity. Knowledge of these variants is important, due to their close relationship with the popliteal neurovascular bundle. Clinicians should be aware, to avoid pitfalls and take them into account in their differential diagnosis.
4.A bilateral gastrocnemius tertius coexisting with a unilateral two-headed plantaris muscle
George TSAKOTOS ; George TRIANTAFYLLOU ; Christos KOUTSERIMPAS ; Maria PIAGKOU
Anatomy & Cell Biology 2024;57(3):459-462
The current cadaveric report aims to present a coexistence of two uncommon variants of the posterior leg compartment. The variations were detected, during classical dissection in an 84-year-old donated male cadaver. On the left lower limb, the gastrocnemius muscle was identified as having a third head that was attached to the lateral head. This variant is known as gastrocnemius tertius muscle and was bilaterally identified. The left-sided plantaris muscle had two distinct heads that fused into a common tendon that was inserted into the calcaneal tuberosity. Knowledge of these variants is important, due to their close relationship with the popliteal neurovascular bundle. Clinicians should be aware, to avoid pitfalls and take them into account in their differential diagnosis.
5.Comparison of the acute erythropoietic capacities of erythropoietin and U-74389G in terms of hemoglobin levels.
Constantinos TSOMPOS ; Constantinos PANOULIS ; Konstantinos TOUTOUZAS ; Aggeliki TRIANTAFYLLOU ; George C ZOGRAFOS ; Apostolos PAPALOIS
Blood Research 2017;52(4):334-337
No abstract available.
Erythropoietin*
6.Variability in the projection level of the vertebra prominens: a cadaveric study
Trifon TOTLIS ; Andreas SAMMER ; Maria PIAGKOU ; Konstantinos NATSIS ; Panagiotis-Konstantinos EMFIETZIS ; Filippos KARAGEORGOS ; George TSAKOTOS ; George TRIANTAFYLLOU ; Georg FEIGL
Anatomy & Cell Biology 2024;57(3):378-383
The 7th cervical vertebra (C7) is described as having the most prominent spinous process (SP) and is characterized as the “vertebra prominens” (VP) of the cervical spine in anatomy textbooks. The VP is an important anatomical landmark of the neck for clinical examination and therapeutic intervention. The present study identifies the level of the most prominent SP of the cervical and uppermost thoracic vertebrae in a cadaveric cohort. Thirty-nine (23 female and 16 male) cadavers of a mean age of 77.5 years were investigated in a prone position and a certain cervical kyphotic bending. The most prominent SP, at the base of the neck, was palpated and marked with a wedging nail into the SP of the vertebra. The cervical region was dissected, and a blind investigator examined whether the nail was placed into the SP of C7 or the SP of another upper or lower vertebra. In 19 out of 39 cadavers (48.7%), the C7 was identified as the VP (typical anatomy), followed by the C6 (in 14 cadavers, 35.9%), C5 (in 4 cadavers, 10.3%). In 2 cadavers (5.1%) the first thoracic vertebra was identified as having the most prominent SP. Although C7 is described as the VP, in the present study the SP of C7 was the most prominent in less than 50%.The high variable projection level of the most prominent SP of the cervical vertebra holds great clinical significance for spine examination, neck surgery, and spinal anesthesia.
7.Variability in the projection level of the vertebra prominens: a cadaveric study
Trifon TOTLIS ; Andreas SAMMER ; Maria PIAGKOU ; Konstantinos NATSIS ; Panagiotis-Konstantinos EMFIETZIS ; Filippos KARAGEORGOS ; George TSAKOTOS ; George TRIANTAFYLLOU ; Georg FEIGL
Anatomy & Cell Biology 2024;57(3):378-383
The 7th cervical vertebra (C7) is described as having the most prominent spinous process (SP) and is characterized as the “vertebra prominens” (VP) of the cervical spine in anatomy textbooks. The VP is an important anatomical landmark of the neck for clinical examination and therapeutic intervention. The present study identifies the level of the most prominent SP of the cervical and uppermost thoracic vertebrae in a cadaveric cohort. Thirty-nine (23 female and 16 male) cadavers of a mean age of 77.5 years were investigated in a prone position and a certain cervical kyphotic bending. The most prominent SP, at the base of the neck, was palpated and marked with a wedging nail into the SP of the vertebra. The cervical region was dissected, and a blind investigator examined whether the nail was placed into the SP of C7 or the SP of another upper or lower vertebra. In 19 out of 39 cadavers (48.7%), the C7 was identified as the VP (typical anatomy), followed by the C6 (in 14 cadavers, 35.9%), C5 (in 4 cadavers, 10.3%). In 2 cadavers (5.1%) the first thoracic vertebra was identified as having the most prominent SP. Although C7 is described as the VP, in the present study the SP of C7 was the most prominent in less than 50%.The high variable projection level of the most prominent SP of the cervical vertebra holds great clinical significance for spine examination, neck surgery, and spinal anesthesia.
8.Variability in the projection level of the vertebra prominens: a cadaveric study
Trifon TOTLIS ; Andreas SAMMER ; Maria PIAGKOU ; Konstantinos NATSIS ; Panagiotis-Konstantinos EMFIETZIS ; Filippos KARAGEORGOS ; George TSAKOTOS ; George TRIANTAFYLLOU ; Georg FEIGL
Anatomy & Cell Biology 2024;57(3):378-383
The 7th cervical vertebra (C7) is described as having the most prominent spinous process (SP) and is characterized as the “vertebra prominens” (VP) of the cervical spine in anatomy textbooks. The VP is an important anatomical landmark of the neck for clinical examination and therapeutic intervention. The present study identifies the level of the most prominent SP of the cervical and uppermost thoracic vertebrae in a cadaveric cohort. Thirty-nine (23 female and 16 male) cadavers of a mean age of 77.5 years were investigated in a prone position and a certain cervical kyphotic bending. The most prominent SP, at the base of the neck, was palpated and marked with a wedging nail into the SP of the vertebra. The cervical region was dissected, and a blind investigator examined whether the nail was placed into the SP of C7 or the SP of another upper or lower vertebra. In 19 out of 39 cadavers (48.7%), the C7 was identified as the VP (typical anatomy), followed by the C6 (in 14 cadavers, 35.9%), C5 (in 4 cadavers, 10.3%). In 2 cadavers (5.1%) the first thoracic vertebra was identified as having the most prominent SP. Although C7 is described as the VP, in the present study the SP of C7 was the most prominent in less than 50%.The high variable projection level of the most prominent SP of the cervical vertebra holds great clinical significance for spine examination, neck surgery, and spinal anesthesia.
9.A biceps-bicaudatus sartorius muscle:dissection of a variant with possible clinical implications
Konstantinos NATSIS ; Christos KOUTSERIMPAS ; Trifon TOTLIS ; George TRIANTAFYLLOU ; George TSAKOTOS ; Katerina Al NASRAOUI ; Filippos KARAGEORGOS ; Maria PIAGKOU
Anatomy & Cell Biology 2024;57(1):143-146
The current cadaveric report describes an unusual morphology of the sartorius muscle (SM), the biceps-bicaudatus variant. The SM had two (lateral and medial) heads, with distinct tendinous origins from the anterior superior iliac spine.The lateral head was further split into a lateral and a medial bundle. The anterior cutaneous branch of the femoral nerve emerged between the origins of the lateral and medial heads. SM morphological variants are exceedingly uncommon, with only a few documented cases in the literature, and several terms used for their description. Although their rare occurrence, they may play an important role in the differential diagnosis of entrapment syndromes, in cases of neural compressions, such as meralgia paresthetica, while careful dissection during the superficial inter-nervous plane of the direct anterior hip approach is of utmost importance, to avoid adverse effects due to the altered SM morphology.
10.Variability in the projection level of the vertebra prominens: a cadaveric study
Trifon TOTLIS ; Andreas SAMMER ; Maria PIAGKOU ; Konstantinos NATSIS ; Panagiotis-Konstantinos EMFIETZIS ; Filippos KARAGEORGOS ; George TSAKOTOS ; George TRIANTAFYLLOU ; Georg FEIGL
Anatomy & Cell Biology 2024;57(3):378-383
The 7th cervical vertebra (C7) is described as having the most prominent spinous process (SP) and is characterized as the “vertebra prominens” (VP) of the cervical spine in anatomy textbooks. The VP is an important anatomical landmark of the neck for clinical examination and therapeutic intervention. The present study identifies the level of the most prominent SP of the cervical and uppermost thoracic vertebrae in a cadaveric cohort. Thirty-nine (23 female and 16 male) cadavers of a mean age of 77.5 years were investigated in a prone position and a certain cervical kyphotic bending. The most prominent SP, at the base of the neck, was palpated and marked with a wedging nail into the SP of the vertebra. The cervical region was dissected, and a blind investigator examined whether the nail was placed into the SP of C7 or the SP of another upper or lower vertebra. In 19 out of 39 cadavers (48.7%), the C7 was identified as the VP (typical anatomy), followed by the C6 (in 14 cadavers, 35.9%), C5 (in 4 cadavers, 10.3%). In 2 cadavers (5.1%) the first thoracic vertebra was identified as having the most prominent SP. Although C7 is described as the VP, in the present study the SP of C7 was the most prominent in less than 50%.The high variable projection level of the most prominent SP of the cervical vertebra holds great clinical significance for spine examination, neck surgery, and spinal anesthesia.