Postacchini and Massobrio Classification (Nathan Modification) Can be classified into 6 types: Type I (slight curve): Curved slightly forward with apex pointing caudally (>50% incidence) Type II (forward curve): More prominent ventral curvature with coccyx apex pointing anteriorly (8-32% incidence) Type III (sharp angle): Acute anterior angulation of coccyx but…
Tag: Musculoskeletal system
PGMEE, MRCS, USMLE, MBBS, MD/MS 
Morel Lavallee Lesion
Definition: Post-traumatic closed degloving injury, in which the skin and subcutaneous tissue is detached from the underlying fascia by a shearing force which can disrupt perforating vessels and nerves, creating a potential space that fills with blood, lymph, debris and fat (necrotic and/or viable). Clinical features: The diagnosis can be…
PGMEE, MRCS, USMLE, MBBS, MD/MS 
Frozen Shoulder : Mnemonics
Synonym: Adhesive capsulitis of shoulder Features: Mnemonic: ICE CAPS Sequence for Manipulation under anesthesia (MUA): Mnemonic: FEAR
PGMEE, MRCS, USMLE, MBBS, MD/MS 
Ivory Vertebra : Mnemonic
Ivory vertebra refers to diffuse and homogenous increase in opacity of a vertebral body that retains size and contour with no change is size and opacity of adjacent intervertebral discs. Mnemonic: PH FILMS 1. Paget disease of bone 2. Hemangioma 3. Fluorosis 4. Infection (tubercular spondylitis) 5. Lymphoma (usually Hodgkin’s…
PGMEE, MRCS, USMLE, MBBS, MD/MS 
Thiocolchicoside vs Tizanidine vs Baclofen for Low Back Pain
Thiocolchicoside is widely used in acute muscular low back pain due to its fast-acting and less sedative profile. Tizanidine is better suited for chronic cases but requires monitoring due to sedative and hepatic effects. Baclofen is more useful for spasticity of CNS origin and is less commonly used for routine…
PGMEE, MRCS, USMLE, MBBS, MD/MS 
Meniscal Tears on MRI
Meniscal tears are best seen on T1-weighted, gradient-echo and proton-density images. The menisci are low intensity on all sequences. Morphologies Meniscal tear morphology Description MRI appearance Horizontal Separates meniscus into superior (femoral) & inferior (tibial) fragments Primarily horizontal signal on sagittal images Vertical radial Splits central margin of meniscus Vertical…
PGMEE, MRCS, USMLE, MBBS, MD/MS 
Heel Pad Syndrome vs Plantar Fasciitis
Heel pad syndrome and plantar fasciitis both cause heel pain, but they affect different areas and have distinct characteristics. Further reading and differential diagnoses of heel pain: Heel Pain : Mnemonic Plantar Fasciitis Heel Pad Syndrome Definition Inflammation of the calcaneal origin of plantar fascia Traumatic irritation of the specialized…
PGMEE, MRCS, USMLE, MBBS, MD/MS 
Basilar Thumb or 1st CMCJ Osteoarthritis
Tips to remember this classification include: Eaton Stage Joint Subluxation Osteophyte Surgery I 1st CMCJ widened <1/3 No Volar Ligament Reconstruction II 1st CMCJ narrowed <1/3 <2 mm 1. Ligament reconstruction with tendon interposition (LRTI) 2. Single interposition 3. Suspensionplasty 4. Metacarpal osteotomy III 1st CMCJ severely narrowed ≥1/3 >2…