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Pelvic MSK Imaging (and intervention) Malcolm Thomson Radiologist Canberra Imaging Group Pelvic Girdle Pain 1. Posterior Pelvic Girdle Pain 2. “Hip” Pain Exclude: 1. Infection 2. Tumour 3. Fracture • Clinical • Plain film • Ultrasound • CT • MRI • Bone Scan +/- SPECT-CT Trochanteric Insertional Tendinopathy Commonest cause for posterior pelvic girdle pain Trochanteric “Bursitis” Trochanteric Insertional Tendinopathy Very often co-exsists with Sacro-iliac joint irritation. Gluteus Maximus Enthesopathy Sacro-Iliac Joint(s) L5/S1 Facet Joint Arthropathy L5/S1 Facet joint Arthropathy L5 Pars Defects Accessory Lumbosacral Articulations Hamstring Enthesopathy Attachments are more posterior than often appreciated. Sciatic irritation possible. “Hip” Pain Anatomy Osteoarthrosis Plus other arthroses Trochanteric Insertional Tendinopathy Commonest cause for posterior pelvic girdle pain Other Intra-articular Hip disorders F.A.I. 1. Pincer 2. Cam Labrum F.A.I. Cam F.A.I. Pincer F.A.I. Os Acetabulare F.A.I. Labrum becomes distorted and damaged in extremes of hip movement. F.A.I. Mixed pattern Stress Fracture Femoral Calcar Fracture Femoral Neck Psoas Bursa Anterior hip muscles Muscle tear Pubic Symphysiitis Hernia Nerves