Dasar-dasar Radiologi Musculoskeletal_2

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DASAR-DASAR RADIOLOGI MUSCULOSKELETAL dr. Donny Susilawardhono SpRad Bagian Radiologi RSAL RML

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Transcript of Dasar-dasar Radiologi Musculoskeletal_2

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DASAR-DASAR

RADIOLOGI

MUSCULOSKELETAL

dr. Donny Susilawardhono SpRad

Bagian Radiologi RSAL RML

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CV

Militer Profesi

• Rumkital Sabang

• Yonif-3 Marinir

• Pasmar 1 Surabaya

• Lanmar Surabaya

• Kobangdikal

• Lantamal II Padang

• Kasubdep Radiotherapi RSAL

• Spesialis Radiologi keseminatan Musculoskeletal

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Introduction – role of MSK Radiologist

1. To diagnose an unknown disorder, preferably by using standard projection along with the special views and techniques obtainable in conventional radiography before using the more sophisticated modalities now available

2. To perform examination in the proper sequence to know what should be performed next in radiologic investigation

3. To demonstrate the determining radiologic features of a known disorder, the distribution of a lesion in the skeleton, and its location in the bone

4. To monitor the progress of therapy and possible complication

5. To be aware of what specific information is important to the orthopedic surgeon

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6. To recognize the limits of noninvasive radiologic investigation and to know when to proceed with invasive techniques

7. To recognize lesions that require biopsy and those that do not (the “don’t touch lesion”)

8. To assume a more active role in therapeutic management, such as performing an embolization procedure, delivering chemotherapeutic material by mean of selective catheteriztion, or performing (usulaly CT-guided) radiofrequency thermal ablation of osseus lesion (such as osteoid osteoma)

Adam Greenspan

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Bidang-bidang yang didukung

• Orthopaedi

• Rheumatologi

• Kesehatan Fisik dan Rehabilitasi Medik

• Kesehatan Olah Raga

• Pediatri (Tumbuh Kembang)

• Bedah Mulut

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Modalitas

• Plain foto

• USG

• CT Scan

• MRI

• PET dan SPECT

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The Basic – keterangan sakit

• Identitas (umur, jenis kelamin, pekerjaan) • Anamnesa dan Klinis, kalau perlu Lab dan tindakan

yang telah dilakukan) • Kenali mode of the disease (Trauma,

Tumor/tumorlike lesion, Degenerative, Autoimmun, Metabolik, Kongenital)

• Kenali apa yang dicari dari foto (memastikan diagnosis, menyingkirkan DD, melihat kemajuan pengobatan, komplikasi, dll)

• Kemungkinan prognosis • Follow up secara radiologis

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The Basic – dari foto

• Lihat kelengkapan Identitas (nama, umur, nomor RM/foto)

• Marker foto (R atau L, Tidur, dll)

• Lihat optimalisasi kondisi foto (apakah foto kondisi sudah optimal)

• Lihat view pembuatan foto (rule of two, posisi view, dll)

• Note : posisi default foto harus diketahui

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Pedoman Pembacaan

•A = Alignment

•B = Bone

•C = Cartilage

•S = Soft Tissue

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Rule of Two

• Two different projection

• Two joint (terutama kasus trauma)

• Two times

• Two condition

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Alignment

• Garis imajiner yang menghubungkan suatu rangkaian tulang menjadi garis yang kontinyu

• Alignment berbeda-beda pada setiap regio foto

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Alignment Malalignment

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Alignment

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Alignment – Shenton line

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Bone

• Bagaimana “tulang” nya?

▫ Trabeculasi porotik/tidak

▫ Adakah lesi lytic/blastic

▫ Adakah kelainan lain

▫ Adakah pattern

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Pattern -

vertebra

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Cartilage – plain foto

• Cartilage pada kondisi normal tak tampak oleh plain foto

• Cartilage akan tampak bila ada calcificasi

• Pada foto polos yang perlu diperhatikan adanya “space” dari cartilage tersebut

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Cartilage - osteochondroma

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Soft tissue

• Secara umum soft tissue tidak tampak jelas pada plain foto

• Perlu diketahui jarak normal “space” antar tulang

• Pada umumnya soft tissue mass memberikan gambaran slight hyperdens dan memberikan efek penekanan (SOP)

• Bila soft tissue calcificasi maka akan calcificasi yang akan tampak

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Soft tissue

Bulging soft tissue mass dari malignant bone tumor (Ewing)

Soft tissue tumor (soft tissue origin)

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Basic Radiologi untuk tumor/tumorlike lesion

• Identitas

• Single/Multiple

• Location

• Morfologi

• Reaksi yang ditimbulkan

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Identitas : age related disease

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Location

• Di dalam skeleton : os Tibia, dll

• Di dalam tulang :

▫ Epifise

▫ Metafise

▫ Diafise

▫ Centric/eccentric

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Location – di dalam tulang

Epifise, metafise dan diafise

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Location Location – centric/eccentric

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Contoh foto Centric Eccentric

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Morfologi

• Bony destruction : osteolytic/osteoblastic/campuran

• Bentuk lesi • Borders :

▫ Geographic ▫ Moth Eaten ▫ Permeative

• Matrix type • Adakah soft tissue replacement/bulging soft

tissue mass

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Margin

Morfologi - border

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Border : slow growing vs aggresive

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Border Geographic Pattern Moth Eaten

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Border -

permeative

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matrix

Matrix lesion

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Matrix Osteoid - fluffy Chondroid - popcorn

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Periosteal reaction

• Interrupted periosteal reaction

▫ Codman

▫ sunburst

• Uninterrupted periosteal reaction

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Periosteal

reaction

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Guidelines

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Contoh Periosteal Reaction

Sunburst Codman

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Onion Skin

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Onion Skin

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Benign vs malignant

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mass, bone vs soft tissue origin

Bulging soft tissue mass dari malignant bone tumor (Ewing)

Soft tissue tumor (soft tissue origin)

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Soft tissue tumor vs bone tumor

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Basic Radiologi for Trauma

• Primary sign

• Secondary sign

• Diskontinyuitas korteks line

• Joint involvement ?

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Rule of Two

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Type of Fracture

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Alignment

of

Fractures

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Direction of Fractures Line

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Special Fractures

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Associated

abnormalities

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Special types of Fractures

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Growth Plate

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Basic Skull

Imaging

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Introduction

• Relatif sulit, gambaran tulang saling menumpuk

• Variasi posisi banyak

▫ Skull AP/Lat

▫ Waters

▫ Mentovertex

▫ Towne

▫ Basis Cranii

▫ Eissler

▫ dll

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Towne – 30° fronto-occipital

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Important view

• Normal suture dan accessory suture

▫ Tiga sutura besar (lambdoid, coronal dan sagital)

▫ Sutura-sutura kecil sekitar mastoid

▫ Sutura accessory di anak-anak

• Metopic suture

▫ Sutura accessory yang paling umum pada dewasa

• Vascular impression

• Sinus sphenoidalis

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Suture

• Suture berkelok-kelok

• Suture lebar adalah normal pada neonatus

• Suture normal, accessory suture, wormian bones dapat menyerupai fracture

• Kesesuaian terhadap posisi trauma dan gambaran radiografis adalah hal penting

• Seringkali pada anak diagnosa menjadi sulit, seringkali diperlukan tambahan foto, kp CT Scan

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Suture pada anak

• Normal suture

▫ Lambdoid, coronal dan sagital

▫ Squamousal

▫ Suture-suture sekitar mastoid

• Accessory suture

▫ Metopic

▫ Mendosal

▫ Accsessory parietal

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NORMAL SUTURES OF NEWBORN

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• 1 = lambdoidea suture

• 2 = coronarius suture

• 3 = sagitalis suture

• P1 = P2 = accessory parietal suture

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• Innominate suture

• Mendosal suture

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Gambar a :

• Accessory parietal suture complete

Gambar b :

• Accessory parietal suture incomplete

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Skull AP – pada anak gambaran normal

1 = lambdoidea suture 3 = sagital suture 4 = squamousal suture P1 = P2 = accessory parietal suture

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Skull AP – pada anak gambaran normal

1 = lambdoidea suture

3 = sagital suture

W = wormian bone

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Skull AP – pada anak gambaran normal

• metopic suture

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Towne – pada anak gambaran normal

• 1 = lambdoidea suture

• 2 = coronarius suture

• 3 = sagital suture

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Vascular marking vs Fractures

Vascular Marking Fracture

• Biasanya abu-abu, karena masih ada bayangan tabula interna

• Mempunyai cabang yang secara graduil mengecil ke arah perifer

• Biasanya terdapat tepi sclerotic

• Biasanya hitam, karena tabula interna dan eksterna terkena

• Peercabangan biasanya tidak secara graduil kaliber mengecil

• Tidak mempunyai tepi sclerotic

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Waters – on trauma

• McGrigor 1

• McGrigor 2

• McGrigor 3

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Important landmark for arthritis

Pasien Radiograph

• Identitas (usia, sex)

• Anamnesa, onset penyakit

• Nyeri / tidak nyeri

• Simetris / tidak

• Sendi besar atau sendi kecil

• Single joint / multiple joint

• Associated with food

• Underlying disease

• Simetris / tidak

• Pattern dari tulang-tulang

• Synovial atau tepi subchindral

• Permukaan sendi

• Spur / deposit mineral

• Penyempitan celah sendi

• Sclerosis permukaan sendi

• Deformitas

• Pseudocyst

• Erosi

• Gasforming

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Osteoarthrosis - genu

• Osteophyte

• Penyempitan celah sendi lateral compartement

• Sclerosis

• Pseudocyst (tidak ada)

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Erosive osteoarthrosis

• Osteophyte

• Gull wing erosion

• Heberden nodes

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Gouty Arthritis

• Asimetrical, sharp erosion with overhanging edge

• tophus

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RA

• Simetris

• Juxta arthricular porosis

• Swanneck & boutonieri deformity (tidak ada)

• Subluksasi (tidak ada)

• Soft tissue swelling (tidak jelas)

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