Recent Question

(OBQ13.99) A 35-year-old man presents with mechanical knee pain after a fall. An arthroscopic picture taken during diagnostic arthroscopy is shown in Figure A. His surgeon considers treatment with Technique B and Technique C, which are shown in Figures B and C, respectively. Which of the following statement is true with respect to Technique B and C? Topic Review Topic
FIGURES: A   B   C      

1. A diminished immune response to transplanted chondrocytes is seen in Technique C because the dense cartilage matrix acts as a barrier that limits antigen exposure.
2. In Technique C, healing is initiated by mesenchymal stem cell migration from subchondral bone. In Technique B, healing is initiated by allogeneic chondrocytes reimplanted beneath a periosteal patch.
3. Grafts in Technique C are transferred to an antibiotic solution to kill microorganisms and stored at 4°C until use.
4. A biopsy of the repair site at 3 months will reveal more Type I collagen in Technique B than in Technique C.
5. Technique C is a 2-stage procedure. Technique B is a single-stage procedure.

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Topic Updates

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topic Hamstring Injuries on 07/26/14
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topic Scapular Winging on 07/26/14
topic Melanoma on 07/26/14
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topic Wrist Arthritis on 07/25/14
topic Deltoid Rupture on 07/24/14
topic ACL Tear on 07/24/14
topic ACL Tear on 07/24/14
topic Hallux Valgus on 07/24/14
topic Ankle Arthrodesis on 07/24/14
topic Deltoid Rupture on 07/24/14
topic Hallux Valgus on 07/24/14
topic Deltoid Rupture on 07/23/14
topic Tibial Deficiency on 07/23/14
topic ACL Tear on 07/23/14
topic Deltoid Rupture on 07/22/14
topic Kienbock's Disease on 07/22/14
topic Low Ankle Sprain on 07/22/14
topic Hallux Valgus on 07/22/14
topic Low Ankle Sprain on 07/22/14
topic Kienbock's Disease on 07/22/14
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topic PASS Overview on 07/22/14
topic Hip Labral Tear on 07/21/14
topic Meniscus on 07/21/14
topic Hip Labral Tear on 07/21/14
topic Osteoarthritis on 07/21/14
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topic Osteopetrosis on 07/20/14
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topic Legal and Ethics on 07/19/14
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topic TKA Revision on 07/18/14
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topic Rotator Cuff Tears on 07/16/14
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