Apophysitis of the Ilium

Other Names

• Anterior Inferior Iliac Spine Apophysitis
• Anterior Superior Iliac Spine Apophysitis
• ASIS Apophysitis
• Iliac Crest Apophysitis

---

---

Pathophysiology

Iliac Crest

• The iliac crest apophysis appears around 13 years old
• Starts to fuse around 14 years old in girls (15 and 16 years old, respectively, in boys)

---

---

Differential Diagnosis

• Fractures And Dislocations
  • Pelvic Fracture
  • Hip Fracture
  • Acetabular Fracture
  • Femoral Neck Stress Fracture
  • Pelvic Stress Fracture
  • Hip Dislocation

• Arthropathies
  • Osteitis Pubis
  • Avascular Necrosis of the Hip
  • Hip Osteoarthritis
  • Femoroacetabular Impingement
  • Transient Osteoporosis of the Hip

• Muscle and Tendon Injuries
  • Hip Flexor Tendonitis
  • Piriformis Syndrome
  • Hamstring Strain
  • Proximal Hamstring Tendinopathy
  • Adductor Strain
  • Greater Trochanteric Pain Syndrome

• Bursopathies
  • Iliopsoas Bursitis
  • Ischial Bursitis

• Ligament Injuries
  • Acetabular Labrum Tear

• Neuropathies
  • Meralgia Paresthetica

• Other
  • Snapping Hip Syndrome
  • Septic Arthritis
  • Gout
  • Leg Length Discrepancy
• Pediatric Pathology
  • Transient Synovitis of the Hip
  • Developmental Dysplasia of the Hip (DDH)
  • Legg-Calve-Perthes Disease
  • Slipped Capital Femoral Epiphysis (SCFE)
  • Avulsion Fractures of the Ilium (Iliac Crest, ASIS, AIIS)
  • Ischial Tuberostiy Avulsion Fracture
  • Avulsion Fractures of the Trochanters (Greater, Lesser)
  • Apophysitis of the Ilium (Iliac Crest, ASIS, AIIS)

---

Clinical Features

• History
• Physical Exam
• Special Tests

---

---

---

---

---

---

See Also

• Pediatric Fractures (Main)
• Apophyseal And Epiphyseal Injuries (Main)
• Hip Pain (Main)
• Physical Exam Hip
• Hip Anatomy (Main)

---

---