61 yo m with knee pain. ? medial meniscal tear
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61 yo M with knee pain. ? Medial meniscal tear. 61 yo M with knee pain. ? Medial meniscal tear. Knee pain. Knee pain. Knee pain. Knee pain. Knee pain. Knee pain. Knee pain. Knee pain. Knee pain. Knee pain. Knee pain. Knee pain. Knee pain. Knee pain. Knee pain. Knee pain. - PowerPoint PPT PresentationTRANSCRIPT
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61 yo M with knee pain. ? Medial meniscal tear
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61 yo M with knee pain. ? Medial meniscal tear
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Knee pain
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Knee pain
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Knee pain
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Knee pain
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Knee pain
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Knee pain
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Knee pain
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Knee pain
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Knee pain
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Knee pain
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Knee pain
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Knee pain
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Knee pain
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Knee pain
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Knee pain
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Knee pain
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Knee pain
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Knee pain
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Knee pain
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Knee pain
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Knee pain
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Knee pain
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Knee pain
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Intramuscular dissection of Popliteal Cyst
• Pop Cyst – fluid distension of the gastrocnemius-semimembranosus bursa
• Joint fluid through a weakened posteromedial joint capsule
• Usually extend inferomedially- path of least resistance
• ? weakened fascia around muscle- predispose to IM dissection
Skeletal Radiol. 2004 Jun;33(6):367-71. Epub 2004 Mar 9.
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Sag PD
38 yo M with mass that developed over 6-8 weeks. No history of trauma
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Sag T2
38 yo M with mass that developed over 6-8 weeks. No history of trauma
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Sag T2 FS
38 yo M with mass that developed over 6-8 weeks. No history of trauma
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Sag T1FS Gd
38 yo M with mass that developed over 6-8 weeks. No history of trauma
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Axail PD
38 yo M with mass that developed over 6-8 weeks. No history of trauma
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Axail T1
38 yo M with mass that developed over 6-8 weeks. No history of trauma
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Axail T1FS Gd
38 yo M with mass that developed over 6-8 weeks. No history of trauma
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Axail T1FS Gd
38 yo M with mass that developed over 6-8 weeks. No history of trauma
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13 y.o male with right knee pain for several months. Osgood-Schlatter’s clinically. ? Osteochondral lesion
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13 y.o male with right knee pain for several months. Osgood-Schlatter’s clinically. ? Osteochondral lesion
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13 y.o male with right knee pain for several months. Osgood-Schlatter’s clinically. ? Osteochondral lesion
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13 y.o male with right knee pain for several months. Osgood-Schlatter’s clinically. ? Osteochondral lesion
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13 y.o male with right knee pain for several months. Osgood-Schlatter’s clinically. ? Osteochondral lesion
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13 y.o male with right knee pain for several months. Osgood-Schlatter’s clinically. ? Osteochondral lesion
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13 y.o male with right knee pain for several months. Osgood-Schlatter’s clinically. ? Osteochondral lesion
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13 y.o male with right knee pain for several months. Osgood-Schlatter’s clinically. ? Osteochondral lesion
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13 y.o male with right knee pain for several months. Osgood-Schlatter’s clinically. ? Osteochondral lesion
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13 y.o male with right knee pain for several months. Osgood-Schlatter’s clinically. ? Osteochondral lesion
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13 y.o male with right knee pain for several months. Osgood-Schlatter’s clinically. ? Osteochondral lesion
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13 y.o male with right knee pain for several months. Osgood-Schlatter’s clinically. ? Osteochondral lesion
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OCD
• Juvenile OCD usually between 10-20 yrs
• Athletically active children
• Classic location – lateral aspect of medial femoral condyle
• Believed to be due to repetitive microtrauma
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OCD
• Stable lesions in skeletally immature pts – conservative management
• Subchondral bone attached to cartilage or not -
• Hyaline cartilage lacks blood vessels and has limited ability to heal
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Osteochondritis (osteochondrosis) dissecans: a review and new MRI classification.Eur Radiol. 1998;8(1):103-12. Review.
Evolution of OCD
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Osteochondritis dissecans of the knee in children.Curr Opin Pediatr. Osteochondritis dissecans of the knee in children.Curr Opin Pediatr. 2003 Feb;15(1):38-44. Review 2003 Feb;15(1):38-44. Review
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Osgood Schlatter’s
• Tendinosis or partial tear
• Distended deep infrapatellar bursa was a frequent finding – assc pain and inflammation
• Ossicle seen only in 32% cases - remained non united in some after relief of Sx.
• Most cases of OS - insult to the tendon and associated soft tissues, rather than avulsion fracture
Radiology. 1992 Dec;185(3):853-8. Osgood-Schlatter lesion: fracture or tendinitis? Scintigraphic, CT, and MR imaging features.
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Osgood Schlatter’s
• Distended deep infrapatellar bursa was seen on MRI in 71% of cases
• Average DIB dimensions on T2WI• AP 2.1-2.7 mm • craniocaudal 7.3-9.1 mm
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Calf pain
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Calf pain
• Feathery appearance of the medial head of the gastrocnemius
• Adjacent hematoma
• Grade II partial tear of the medial head of the gastrocnemius
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Tennis leg
• Intact plantaris tendon on axial images
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Tennis leg
• US findings in the 141 patients • rupture of the medial head of the
gastrocnemius muscle (66.7%),• fluid collection between the medial
gastrocnemius and soleus muscles without muscle rupture (21.3%),
• rupture of the plantaris tendon (1.4%), • partial rupture of the soleus muscle
(0.7%).• Deep venous thrombosis (9.9%).
Tennis Leg: Clinical US Study of 141 Patients and Anatomic Investigation of Four Cadavers with MR Imaging and US1 Gonzalo J. Delgado, MD2, Christine B. Chung, MD, Nitaya Lektrakul, MD, Patricio Azocar, MD, Michael J. Botte, MD, Daniel Coria, MD, Enrique Bosch, MD and Donald Resnick, MD
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9 yr old ballerina with anterior knee pain
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9 yr old ballerina with anterior knee pain
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Possible stress fracture
• Stress fractures in athletes • tibia (50%) • tarsal bones (25%) • metatarsals (9%), • femur (7%)• fibula (6%),• pelvis (1.5%), • sesamoids (0.9%),• and spine (0.6%). .[
Mata SG, Grande MM, Ovejero AH. Transverse stress fracture of the patella. Clin J Sport Med 1996;6:259–61
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Patellar stress fracture
• Described with bone-patellar tendon-bone anterior cruciate ligament reconstructions
• patella resurfacing in total knee arthroplasty
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Childhood patellar stress fracture
• Unusual. 16 cases described• Transverse patellar stress fractures
• Rare• Dickason JM, Fox JM. Fracture of the patella
due to overuse syndrome in a child. Am J Sports Med 1982;10:248-249
• Mata G, et al. Transverse stress fracture of the patella in a child. J Pediatr Orthop B. 1999 Jul;8(3):208-11.
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Patellar stress fractures
• Case report :35 yo recreational tennis player
• Anterior Knee Pain• Declined surgical
management• Sudden onset of
increased pain after walking down stairs
Propagation of stress fracture of the patella – Crowther et al_ 39 (2) e6 -- British Journal of Sports Medicine
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Considerations
• Stress fracture on the tensile superficial surface of the patella is at risk of complete fracture
• Non-operative treatment for those not immediately returning to activity
• patients involved in high demand sports require prophylactic internal fixation