– See: Motor Conduction Latency: – Sensory Amplitude: – among the earliest changes in a nerve compression sydrome is changes in distal sensory amplitude, followed by an increase in distal sensory latency; – Sensory Conduction Latency: – more sensitive than is motor conduction velocity; – amplitude of action … Read more
– Diff Dx: – reactive transient synovitis (toxic synovitis) – in the report by Kocher MS et al., the authors sought to distinguish transient synovitis vs sepsis on the basis of lab data and patient history; – independent clinical predictors between … Read more
origin: the transverse process of the 6th to 10 Thoracic vertebrae; insertion: the spinous process of the 1st to 4th thoracic and 6th-7th cervical vertebrae; action: extends the spine and rotates it toward the opposite side; nerve supply: posterior rami of the thoracic nerves, T1 to T6; synergists: Longissimus Thoracis , Iliocostalis thoracis, Spinalis … Read more
– Anatomy: – origin: ischial tuberosity w/ tendon of biceps femoris; – insertion: pes arserinus – action: – flexes and medially rotates the calf at the knee; extends, adducts and medially rotates the thigh at the hip; – reversed … Read more
origin: C7 and T1-T6 thoracic transverse processes and articular processes of 4th, 5th, and 6th cervical vertebrae; insertion: between superior and inferior nuchal lines of the occipital; action: extnesion of lateral flexion of the neck and head, and rotates it to the opposite side; nerve supply: posterior rami of the cervial nerves; synergists: splenius group, … Read more
– Discussion: – origin: transverse processes of the first to sixth thoracic, articular processes of the 4th to 7th cervical vertebrae; – insertion: spinous processes of 2nd to 5th cervical vertebrae; – action: – acting bilaterally, extension and hyperextension of the cervical spine; – acting unilaterally, lateral flexion of the neck and head; – synergists: … Read more
L 1 | L 2 | L 3 | L 4 | L 5 | S 1 | S 2 S 3 –Ilio Psoas —- — Sartorius —– – … Read more
– Anatomy: – origin: upper and lower aspect of ischial tuberosity: – insertion: posterior surface of medial condyle of the tibia; – action: flexes and medially rotates the calf at the knee. extends, adducts and medially rotates the thigh at the hip; … Read more
– See: Acetabular Component Menu Discussion it is controversial as to whether screws are necessary in THR, and there are relative advantages and disadvantages; cups should be designed with only 2-3 holes so as to maximize the porous coating surface and to minimize conduit for osteolysis; acetabular cup insertion: advantages of screw insertion: theoretically, screw … Read more
– Anatomy: – arises from lumbrosacral plexus: L4, L5, S1, S2, S3; – nerve emerges from pelvis below piriformis & enters thigh between ischial tuberosity & greater trochanter; – in 10% of patients, the sciatic nerve is separated in greater sciatic foramen by all or part of the piriformis; – sciatic nerve is … Read more