L-PRF (Leukocyte-platelet rich fibrin) is a second generation platelet reach concentrate where autologous platelets and leukocytes are present in a 3D fibrin mesh which is used as a scaffold by surrounding host cells and which slowly releases growth factors and glycoproteins (≥ 7 days). It is processed without the anticoagulant,…
Tag: Orthopedics
Section Editor: Dr. Sulabh Kumar Shrestha, MBBS, PGY1 Orthopedics
PGMEE, MRCS, USMLE, MBBS, MD/MS 
Diagnosis of Spinal Instability (White & Panjabi) : Mnemonic
Mnemonic: Remember 4 D common to all + 3 D for C-spine and 1 D for L-spine Diagnosis requires: Score >4 Denis column disruption: Anterior column destroyed or unable to function (2 points) Posterior column destroyed or unable to function (2 points) Deformity: Will have a maximum score of 4…
PGMEE, MRCS, USMLE, MBBS, MD/MS 
Scheurmann’s Disease : Mnemonic
Mnemonic: Remember “S” for Scheurmann Structural kyphosis (sagittal deformity) of thoracic or thoracolumbar spine Skeletally immature sons (0.4-10% of adolescents between 10-14 years; onset with prepubertal growth spurt; M:F = 2-7:1) Strong hereditary (genetic) predisposition and Several theories: Scheurmann’s vertebral epiphyseal disturbance theory Schmorl’s nodes (herniation of disc material into…
PGMEE, MRCS, USMLE, MBBS, MD/MS 
Tendon Transfer Principles : Mnemonic
Tendon transfer is the use of the power of a functioning muscle unit to activate a non-functioning nerve/muscle/tendon unit. The transferred tendon remains attached to its parent muscle with an intact neurovascular pedicle. Mnemonic: SEACOAST-1 a. Synergistic: act together to produce a single composite movement (facilitate each other). e.g. b….
PGMEE, MRCS, USMLE, MBBS, MD/MS 
Tourniquet Paralysis Syndrome
Synonym: Pressure paralysis Mechanism: Direct extrinsic pressure (displacement of ranvier node) or axonal hypoxia on the nerves beneath the tourniquet and are related to the cuff pressure and duration of application.\ It is different from post tourniquet syndrome which caused due to combined effect of muscle ischemia, edema and microvascular…
PGMEE, MRCS, USMLE, MBBS, MD/MS 
Blood Supply of Humeral Head
Anterior Humeral Circumflex Artery (AHCA) Origin: Axillary artery Course: Along the inferior border of subscapularis Gives anterolateral ascending branch which courses along lateral aspect of bicipital groove entering the humeral head and becoming arcuate artery Continues posterolaterally to anastomose with Posterior Humeral Circumflex Artery (PHCA) Posterior Humeral Circumflex Artery (PHCA)…
PGMEE, MRCS, USMLE, MBBS, MD/MS 
Paraplegia in Extension and Flexion
Paraplegia in extension and paraplegia in flexion occur only after the spinal shock has ceased. Paraplegia in extension indicates an increase in the extensor muscle tone owing to the overactivity of gamma efferent nerve fibers to muscle spindles as the result of the release of these neurons from the higher…
PGMEE, MRCS, USMLE, MBBS, MD/MS 
Diabetic Foot Management : Mnemonic Approach
Definition of Diabetic foot According to the WHO and International Working Group on the Diabetic Foot (IWGDF), diabetic foot is defined as the foot of diabetic patients with ulceration, infection and/or destruction of the deep tissues, associated with neuropathy and/or peripheral artery disease in the lower extremity of a person…