“Banana patella”, fibrous dysplasia of patella: A rare case report

IntroductionPatella is a very uncommon site for primary bone tumours and fibrous dysplasia lesion in patella has never been reported. Fibrous dysplasia is a benign fibrosseous lesion of the bone where the fibrous connective tissue replaces the normal bone.Case reportWe report a case of 23 years female with 7 years history of progressive swelling and anterior knee pain. Radiographs showed enlarged, deformed patella like a shape of banana. The patient underwent patellectomy with extensor mechanism repair and biopsy proved to be fibrous dysplasia.ConclusionFibrous dysplasia involving patella is very rare and never been reported earlier. Although primary patellar neoplasm are not common but should be kept in mind in chronic anterior knee pain with swelling for early diagnosis and intervention with intralesional therapy otherwise patellectomy has to be done in more advanced, deformed and enlarged lesions.     

Hook plating in patella fractures

PurposeTension band wiring is considered the standard treatment for patella fractures. However, it is limited for fractures with marginal involvement, comminution, and osteoporotic bone. Our experience indicates that these limitations can be overcome with the hook plate. We evaluated the radiographic and clinical outcomes in patients with patella fracture treated with hook plating.MethodsWe enrolled 30 patients who underwent hook plating for patella fracture at two institutions between 2013 and 2017. Fracture classification and surgical options were reviewed. Postoperative fracture gap and time to union as radiographic measurements, and complications, range of motion, and functional outcome with the Lysholm score as clinical outcomes, were evaluated retrospectively.ResultsNine fractures were AO/OTA 34A1, three B1, one B2, two C1, nine C2, and six C3. All were closed fractures. There were 3 cases of revision, 4 with lateral or medial marginal fracture, 9 with isolated inferior pole fracture, and 14 with comminuted fracture. The average postoperative fracture gap was 0.4 (range, 0–2.0) mm, and bone union was achieved without additional intervention. The average time to union was 11.6 (range, 7–24) weeks. There were no complications, and no extension lag except in one case (10°). The average flexion was 138.5° (range, 110–145°). For functional outcomes, the average Lysholm score was 89.5 (range, 74–95), with 13 excellent, 14 good, 3 fair, and no poor cases.ConclusionThis study suggests that hook plating can result in good bone union and restored knee function in marginal or comminuted fractures of the patella.     

Horizontal intraarticular dislocation of patella—A case report and review of literature

Dislocation of patella is a known emergency condition. It is more common in adolescents who are involved in activities like sports and dance. We describe here a case of horizontal intraarticular dislocation of patella in an elderly female managed successfully by closed reduction.     

髌骨脱位的规范化治疗方案

髌骨脱位常见于年轻、运动较多的人群,引起膝关节功能障碍,包括活动受限、膝关节不稳、疼痛、习惯性脱位以及髌股关节炎[1].髌骨脱位约占所有膝关节损伤的3％,在人群中发生率约为1‰,患者大部分为10～17岁青少年和女性[2-3].造成髌骨脱位的原因很多,除创伤外,髌骨和股骨滑车的骨结构发育畸形、周围组织损伤和结缔组织疾病都会引起髌骨脱位[4].     

中药熏洗联合功能锻炼对髌骨骨折术后功能恢复的影响

目的 探讨中药熏洗联合功能锻炼对髌骨骨折术后功能恢复的影响.方法 将符合纳入标准的80例髌骨骨折患者按随机数字表法分为2组,每组40例.对照组采用连续被动活动训练机(continuous passive motion,CPM)进行功能锻炼,治疗组在对照组基础上联合中药熏洗.2组均治疗8周.采用膝关节评分量表(Keen Society Score,KSS)评价膝关节功能,观察治疗前后膝关节活动范围变化,评价临床疗效.结果 治疗组优良率为87.5%(35/40)、对照组为65.0%(26/40),2组比较差异有统计学意义(χ2=5.591,P<0.01);治疗后8周,治疗组膝关节活动范围[(138.38±7.82)°比(120.29±7.83)°,t=10.338]、KSS评分[(88.38±9.52)分比(83.46±9.36)分,t=2.330]均高于对照组(P<0.01或P<0.05).结论 髌骨骨折术后采用中药熏洗联合CPM功能锻炼可促进膝关节功能恢复,减少骨折并发症.