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Exposure. Femoral head. Posterior approach. Advantage Easy exposure Quicker surgery No limp Disadvantage Higher dislocation rate Have to limit patient’s motion postop A. Direct Anterior approach. Advantage Quicker rehabilitation Smaller incision No limp or dislocation
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Posterior approach Advantage • Easy exposure • Quicker surgery • No limp Disadvantage • Higher dislocation rate • Have to limit patient’s motion postop • A
Direct Anterior approach • Advantage • Quicker rehabilitation • Smaller incision • No limp or dislocation • Disadvantage • More technically challenging • Not designed for complications during surgery
Anterior Lateral Approach Advantage • Lower rate of dislocation • Disadvantage • Must repair and protect abductors • Increased limp
Bipolar hip replacementHemiarthroplasty • Femoral neck fracture • Acetabulum is not arthritic
Resurfacing • Disadvantages Risk of femoral neck Fracture Not all are candidates Risk of Pseudotumor – semi-solid or cystic periprosthetic mass of 2 cm in diameter or larger
Resurfacing • Risk of neck fracture
Risks of Hip Replacement • Infection • Antibiotic given within one hour prior to incision and 3 doses within 24 hours • Antibiotic prior to dental / invasive procedure -
Risks of Joint Replacement • Infection
Infection Combordities • Diabetes • Immunosuppression • Steroids • Rheumatoid Arthritis • HIV
DVT / PE • TEDs • SCDs • Active care devices • Anticoagulant – ongoing debate Chest Guidelines AAOS Guidelines Not for todays discussion
Risk of Hip Replacement • Nerve Injury - Sciatic nerve / foot drop • Fracture – intraop or postop • Vessel Injury
Knee Replacement • Keeping people active longer
Knee Replacement Indications • Osteoarthritis
Indications • Osteonecrosis
Implants • Patella Femoral Plasty
Risks • DVT • Anticoagulant • SCD • Active Care • TED stockings • Ambulation
Nerve Injury • Sciatic Neve • Peroneal Nerve
New Trends • Navigation • Makoplasty • Selection of patient population