Background: Loose bodies (LBs) within the knee joint are commonly encountered during clinical practice and are frequently observed during knee arthroscopy. The primary treatment involves the removal of loose bodies;ho...Background: Loose bodies (LBs) within the knee joint are commonly encountered during clinical practice and are frequently observed during knee arthroscopy. The primary treatment involves the removal of loose bodies;however, their complete eradication is often challenging and may not address underlying diseases, leading to persistent symptoms and the risk of new loose body formation. Aim: This case report aims to present the findings and surgical management of a 52-year-old male with an unusually large osseous loose body in the knee joint and associated pathologies. Case Presentation: The patient, a 52-year-old male, experienced recurrent episodes of severe, sudden, and painful locking of the knee joint, leading to difficulties moving. A plain MRI study was conducted to evaluate the condition of the knee joint, which revealed various degenerative changes and the presence of a loose body. Subsequently, an arthroscopic examination was performed under general anesthesia, uncovering the presence of an abnormally large loose body, as well as other pathologies including chondropathy, meniscal degeneration, and Baker’s cyst. Conclusion: Loose bodies (LBs) in the knee joint pose significant challenges and may lead to debilitating symptoms. Timely diagnosis and appropriate surgical intervention are crucial for symptom relief and the prevention of further joint damage as arthroscopic excision. Comprehensive imaging has a vital role in guiding treatment decisions and optimizing patient outcomes. In this case, the removal of the loose body improved patient outcomes and helped prevent potential joint complications.展开更多
目的探讨磁共振成像(MRI)对骨挫伤的诊断价值和意义,评价X线、CT、MRI诊断膝关节骨挫伤的效果。方法选取近年X线平片未见膝关节骨折,而MRI检查显示膝关节骨髓有异常改变的56个外伤病例,进行影像表现分析研究。结果56例X线平片均未见明...目的探讨磁共振成像(MRI)对骨挫伤的诊断价值和意义,评价X线、CT、MRI诊断膝关节骨挫伤的效果。方法选取近年X线平片未见膝关节骨折,而MRI检查显示膝关节骨髓有异常改变的56个外伤病例,进行影像表现分析研究。结果56例X线平片均未见明确骨折征象,而MRI检查显示有骨挫伤,表现为T2WI短TI反转恢复序列(short TI inversion recovery,STIR)病变区呈高信号,T1WI呈稍低信号,有膝关节骨挫伤的部分病例还伴有前后交叉韧带、内外侧副韧带、内外侧半月板损伤及创伤性滑膜炎等表现。结论MRI能早期显示骨挫伤及隐性骨折,如患者外伤后X线平片或CT未见骨折,外伤部位持续疼痛并伴有软组织肿胀,不能承受重力,应做MRI检查;脂肪抑制技术STIR及化学位移脂肪成像(Chem-Sat)对显示骨挫伤的敏感性较高,能显示细微的骨髓水肿、充血及骨小梁的微骨折,对发现骨外伤的隐性损伤具有较高的诊断价值。展开更多
文摘Background: Loose bodies (LBs) within the knee joint are commonly encountered during clinical practice and are frequently observed during knee arthroscopy. The primary treatment involves the removal of loose bodies;however, their complete eradication is often challenging and may not address underlying diseases, leading to persistent symptoms and the risk of new loose body formation. Aim: This case report aims to present the findings and surgical management of a 52-year-old male with an unusually large osseous loose body in the knee joint and associated pathologies. Case Presentation: The patient, a 52-year-old male, experienced recurrent episodes of severe, sudden, and painful locking of the knee joint, leading to difficulties moving. A plain MRI study was conducted to evaluate the condition of the knee joint, which revealed various degenerative changes and the presence of a loose body. Subsequently, an arthroscopic examination was performed under general anesthesia, uncovering the presence of an abnormally large loose body, as well as other pathologies including chondropathy, meniscal degeneration, and Baker’s cyst. Conclusion: Loose bodies (LBs) in the knee joint pose significant challenges and may lead to debilitating symptoms. Timely diagnosis and appropriate surgical intervention are crucial for symptom relief and the prevention of further joint damage as arthroscopic excision. Comprehensive imaging has a vital role in guiding treatment decisions and optimizing patient outcomes. In this case, the removal of the loose body improved patient outcomes and helped prevent potential joint complications.
文摘目的探讨磁共振成像(MRI)对骨挫伤的诊断价值和意义,评价X线、CT、MRI诊断膝关节骨挫伤的效果。方法选取近年X线平片未见膝关节骨折,而MRI检查显示膝关节骨髓有异常改变的56个外伤病例,进行影像表现分析研究。结果56例X线平片均未见明确骨折征象,而MRI检查显示有骨挫伤,表现为T2WI短TI反转恢复序列(short TI inversion recovery,STIR)病变区呈高信号,T1WI呈稍低信号,有膝关节骨挫伤的部分病例还伴有前后交叉韧带、内外侧副韧带、内外侧半月板损伤及创伤性滑膜炎等表现。结论MRI能早期显示骨挫伤及隐性骨折,如患者外伤后X线平片或CT未见骨折,外伤部位持续疼痛并伴有软组织肿胀,不能承受重力,应做MRI检查;脂肪抑制技术STIR及化学位移脂肪成像(Chem-Sat)对显示骨挫伤的敏感性较高,能显示细微的骨髓水肿、充血及骨小梁的微骨折,对发现骨外伤的隐性损伤具有较高的诊断价值。