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DEVELOPMENTAL DYSPLASIA OF THE HIP. DAMASCUS HOSPITAL. Dr.MHD BASHAR ALBOSHI. Definition:. Developemental?!! DDH is a disorder that evolves over time. The left hip > right hip . bilateral hips > right hip alone. Etiology:. تداخل عدة عوامل مشتركة (1) الرخاوة الرباطية
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DEVELOPMENTAL DYSPLASIA OF THE HIP DAMASCUS HOSPITAL Dr.MHD BASHAR ALBOSHI
Definition: • Developemental?!! DDH is a disorder that evolves over time. • The left hip> right hip. • bilateral hips> right hip alone.
Etiology: • تداخل عدة عوامل مشتركة (1)الرخاوة الرباطية (2) ( الوضعية المقعدية داخل الرحم). Generalized familial hyperlaxity
Etiology: • (3)وضعية البسط التام للوركين بعد الولادة. • (4)العرق: أعلى لدى القوقاز والأمريكان المحليين. أقل عند السود والأسيويين
Associated Conditions • Torticollis (15% have DDH) • Metatarsus Adductus(1.5-10%have DDH)
PATHOPHYSIOLOGY( NORMAL HIP DEVELOPMENT): The hyaline cartilage ( triradiate cartilages)
Pathophysiology (secondary obstacles): • النسج الشحمية(pulvinar thickens). • الرباط المدور (متسمك ومتطاول) • الرباط المعترض( متضخم) • المحفظة(شكل الساعة الرملية) • Iliopsoas
Teres ligament (elongated and thickened) Docking the head
dislocated subluxated • Labrum: Cartilaginous acetabular lip. • Neolimbus:a ridge of thickened articular cartilage
Pathophysiology (secondary obstacles): progressive Shortened of pelvifemoral muscles
CLINICAL PRESENTATION(THE NEONATE): • Ortolani,s or Barlow,s sign • Sonographic morphology.
CLINICAL PRESENTATION(THE NEONATE): Barlow Ortolani clunk
CLINICAL PRESENTATION(THE INFANT): Limited Abduction Galeazzi Sign Hips 90degrees
CLINICAL PRESENTATION(THE INFANT): Asymmetric Folds
CLINICAL PRESENTATION(THE INFANT): recognize a bilateral dislocation. Klisic Test Anterior superior iliac spine Greater trochanter Dislocation Normal
CLINICAL PRESENTATION(THE WALKING CHILD): • CLINICAL PRESENTATION • (THE WALKING CHILD) • FIG15-24
IMAGING STUDIES(ULTRASOUND) identify a silent hip
IMAGING STUDIES(ULTRASOUND) BASELINE: line of ilium which intersects the bony and the cartilaginous portions of the acetabulum. 15-29 • As the femoral head subluxates: • ALPHA angle • BETA angle
IMAGING STUDIES(ULTRASOUND) The Ultrasound ( before 3 mo. ) Ilium Abductor M.
IMAGING STUDIES(ULTRASOUND) TABLE15-2
IMAGING STUDIES(RADIOGRAPHY) • عند الوليد الذي لديه DDHقد يظهر طبيعي على الصورة البسيطة. • عندما يصل لعمر 3-6 أشهر يظهر الخلع شعاعيا.
IMAGING STUDIES(RADIOGRAPHY) Acetabulum • السقف( أكثر ميلانا) • التقعر(مسطح) • الجدار الانسي( متسمك) • إنقلاب أمامي شديد
IMAGING STUDIES(RADIOGRAPHY) lateral broken
IMAGING STUDIES(RADIOGRAPHY) • figure15-33 • Useful in newborns. • Decrease with age.
IMAGING STUDIES(RADIOGRAPHY) • figure15-34
IMAGING STUDIES(RADIOGRAPHY) • Figure15-35 • teardrop body: • Losees its convexity • Wider. • The presence of a teardrop at 6 months after reduction predicted a satisfactory outcome in 93% of hips.
IMAGING STUDIES(Arthrography ) (1) عسر التصنع الخفيف (2)الخلع وتحت الخلع (3) الرد (4) إندخال النسج الرخوة labrum (5) (6)المراقبة أثناء العلاج
Screening Criteria • all babies with the risk factors ultrasound + clinical examination
TREATMENT • Neonate: Pavlic harness ((6 weeks)). • 1 to 6 months: Pavlic harness(( 6 weeks)) after hip reduces. • 6 to18 months: traction? • (1)Closed reduction(cast 3 months) • (2)Open reduction( unsuccessful closed reduction) • < 12 months (Medial approach) • > 12 months (anterolateral approach) • 18 to 24 months: Trial of closed reduction? • Orprimary open reduction(anterolateral approach) • (+/-A salter osteotomy ) • 24 months to 6 years: primary open reduction(anterolateral approach)+femoral shortening . ((+/-A salter osteotomy ))
TREATMENT( NEONATE-6 MONTHS) • PAVLIK harness for 6 weeks after hip reduction • Hip flexion(120degrees).
TREATMENT( NEONATE-6 MONTHS) • فحص سريري طبيعي عند وليد+ شذوذ على الإيكو-----إيكو بعد 6 أسابيع--- شذوذ---علاج • إذا حدث خلع بعد 3-4 أسابيع-------رد مغلق أو مفتوح.
TREATMENT( 6-18 MONTHS) Skin traction for 2 – 3 weeks 90D
TREATMENT( 6-18 MONTHS) open reduction if closed reduction is unsuccessful ! Closed reduction (spica cast for 3 mo.) >90D flextion abduction30-40D Internal rotation 10-15D
TREATMENT(AFTER 18 MONTHS) Primary open reduction
OPEN REDUCTION • Medial Approach: • محاسنه: شق صغير,مواجهة الرد مباشرة. • مساوئه: ساحة رؤية ضيقة, لا يمكن إنجاز رأب المحفظة, أذية الشريان المنعطف الفخذي الأنسي. • Anterior approach: • ساحة رؤية أفضل, إنجاز رأب المحفظة