Cases reported "Synovitis"

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1/15. A symptomatic cyclops lesion 4 years after anterior cruciate ligament reconstruction.

    The cyclops lesion is a fibrous nodule with central granulation tissue located anterolateral to the tibial tunnel after intra-articular reconstruction of the anterior cruciate ligament (ACL) that has been shown to be a cause of failure to regain full extension in the early postoperative period. We present the case of a 23-year-old woman who had undergone arthroscopic ACL reconstruction with a patellar tendon autograft 4 years prior to presentation. Following her reconstruction, she regained full range of motion and returned to collegiate cheerleading. At presentation, she complained of a gradual loss of full extension and joint-line pain with terminal extension. On examination, her graft was stable and she lacked 3 degrees of extension. magnetic resonance imaging documented a 1-cm mass of low signal intensity immediately anterior to the ACL graft within the intercondylar notch. At arthroscopy, a large amount of thick, immobile scar tissue was found immediately anterior to the ACL, consistent with a cyclops lesion. The lesion was debrided and the patient did well postoperatively. patients who present with delayed-onset loss of extension after ACL reconstruction should undergo careful evaluation including radiographs and magnetic resonance imaging. If a cyclops lesion is diagnosed, arthroscopic resection should be undertaken.
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ranking = 1
keywords = tibia
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2/15. Pseudoaneurysm as a complication of ankle arthroscopy.

    We describe a case of pseudoaneurysm of the anterior tibial artery as a complication after arthroscopic ankle synovectomy, in which standard anterolateral and anteromedial portals were used. Pseudoaneurysm has been previously reported as a complication in ankle arthroscopy with the use of the anterocentral portal. Previously described anatomic variations of the tibial artery and its close relationship with the anterior ankle capsule may complicate arthroscopic surgery, especially when aggressive synovectomy is performed. Anterior tibial artery aneurysm is a rare complication of ankle arthroscopy, but its potential catastrophic sequelae must not be underestimated.
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keywords = tibia
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3/15. Synovitic cyclops syndrome caused by a Kennedy ligament augmentation device.

    The cyclops lesion at the tibial attachment of the reconstructed ligament has been known to cause loss of knee extension. We present a case of knee extension loss because of a cyclops lesion caused by Kennedy ligament augmentation device synovitis at 10 years after ACL reconstruction in a 33-year-old man.
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ranking = 1
keywords = tibia
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4/15. Pseudoaneurysm of the anterior tibial artery after ankle arthroscopy.

    ankle arthroscopy is believed to have the least vascular complications compared with other types of arthroscopies. We present a case of traumatic pseudoaneurysm of the anterior tibial artery after ankle arthroscopy, an extremely rare complication that was treated surgically and had an uneventful recovery.
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ranking = 5
keywords = tibia
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5/15. Granulomatous synovitis after intraarticular Hylan GF-20. A report of two cases.

    Intraarticular hyaluronan injections are used to treat osteoarthritis of the knee. Acute painful swelling with a joint effusion develops locally after the injection in about 10% of cases but resolves spontaneously. Crystals are identifiable in some patients, but the mechanism in crystal-negative cases remains unknown. We report knee arthritis with inflammatory joint fluid free of organisms and crystals in two patients after Hylan GF-20 treatment for femorotibial osteoarthritis. synovial membrane histology disclosed granulomatous synovitis with epithelioid histiocytic and multinucleate giant cells but no visible foreign bodies. These two cases suggest that crystal-negative arthritis after Hylan GF-20 injection may be ascribable to granulomatous synovitis of the foreign-body giant-cell type.
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ranking = 1
keywords = tibia
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6/15. Patellofemoral arthritis due to localize nodular synovitis (LNS).

    We present the case of a 38-year-old female patient who had suffered from a progressively increasing anterior pain in her right knee for almost 10 years. She decided to seek medical advice when the pain became intolerable, not permitting her to perform normal everyday activities. The clinical examination showed evidence of patellofemoral arthritis, but the MRI that followed, apart from confirming the original diagnosis as an "Outerbridge" grade III osteoarthritic lesion, revealed an unidentifiable tumor located in the lateral part of the right patellofemoral joint, that appeared to be like a type of "reactive synovitis". The articular degeneration was treated with arthroscopic saving, followed by complete excision of the tumor and anteromedial tibial tubercle transfer under direct vision. The excised tumor was histologically categorized as a "localized type of nodular synovitis" otherwise known as "giant cell" tumor of synovial origin. The patient has fully recoreved from surgery and 3 years post-operatively she has fully returned to everyday normal activities noting only occasional slight discomfort.
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ranking = 1
keywords = tibia
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7/15. polyethylene delamination in the PCA total knee. Material analysis in two failed cases.

    Two patients had severe polyethylene-wear synovitis after total knee arthroplasty for arthrosis. Full-leg length weight-bearing radiographs were diagnostic. The polyethylene of the tibial components showed excessive delamination. The morphology and crystallinity of the polyethylene showed that surface treatment of the material could well be held responsible for the massive wear.
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ranking = 1
keywords = tibia
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8/15. Intraarticular corticosteroids possibly leading to local osteonecrosis and marrow fat induced synovitis.

    We describe a woman with recurrent synovitis in one or both knees treated with intraarticular corticosteroid injections and two 6-day courses of methylprednisolone tablets. She later developed osteonecrosis of her distal femora and proximal tibiae. Her course was complicated by persistent synovitis associated with a large quantity of necrotic fat in the joint fluid.
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ranking = 1
keywords = tibia
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9/15. Stress fractures of the legs and swelling of the ankles in a patient with lupus: a diagnostic dilemma.

    A patient with systemic lupus erythematosus (lupus) is described, in whom stress fractures of both legs developed, accompanied by swelling of both ankles. The swelling of the right ankle associated with fracture mimicked lupus synovitis, but resolved with healing of the fracture. On the left side the swelling represented true lupus synovitis coexistent with the tibial stress fracture. This presentation posed a diagnostic dilemma. It is necessary to maintain vigilance in the diagnosis of these fractures in lupus.
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ranking = 1
keywords = tibia
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10/15. Stapling of the knee in juvenile chronic arthritis.

    Stapling of the distal medial femur and/or proximal tibia was performed in 17 juvenile chronic arthritic knees with progressive valgus deformity. Correction with less than 5 degrees of residual valgus deformity was obtained in all but two knees. Five knees were stapled for correction of progressive leg length discrepancy. Equality of leg length was obtained in two, slight undercorrection in two, and overcorrection in one patient. Careful supervision of the patient is recommended because of difficulties in using existing methods for growth prediction. The rate of correction differs considerably between patients because of differences in age, type of disease, and medical treatment.
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ranking = 1
keywords = tibia
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