When subchondral bone defects are present in osteochondral lesions of the talus(OCLT),it is inconclusive whether to allow early weightbearing after microfracture treatment because of the lack of effective support of t...When subchondral bone defects are present in osteochondral lesions of the talus(OCLT),it is inconclusive whether to allow early weightbearing after microfracture treatment because of the lack of effective support of the newly-formed fibrocartilage.After performing arthroscopic debridement and microfracture treatment on OCLT patients with subchondral bone defects,we allowed patients to have an early postoperative weightbearing exercise to observe their clinical outcome.Forty-two OCLT patients with subchondral bone defects were analyzed.Patients were randomly divided into two groups with 21 patients in each group.After arthroscopic debridement and microfracture treatment,group A was allowed to have early partial weightbearing while weightbearing was delayed in group B.Visual analogue scale(VAS)was used to evaluate joint pain before and after surgery.American Orthopaedic Foot and Ankle Society(AOFAS)anklc-hindfoot score was used to evaluate joint function.Tegner activity scale was used to assess patient's exercise level.The AOFAS ankle-hindfoot score in group A increased from 54.4 to 87.6,and that in group B increased from 54.9 to 87.3.The VAS score in group A decreased from 6.5 to 2.2,and that in group B decreased from 6.4 to 2.3.The Tegner activity scale increased from 2.6 to 4.4 in group A,and that in group B increased from 2.6 to 3.9.There was significant difference in the Tegner activity scale between group A and group B(P<0.05).It was suggested that when performing microfracture treatmenf on OCLT patients with subchondral bone defects,early postoperative weightbearing may achieve similar clinical outcomes as delayed weightbearing,and patients may be better able to return to sports.展开更多
Background: Jaw cysts and cyst-like lesions cause facial deformity, destruction of dental tissues and affect masticatory and phonation functions. These ad-versely erode patients’ psycho-social status;create low self-...Background: Jaw cysts and cyst-like lesions cause facial deformity, destruction of dental tissues and affect masticatory and phonation functions. These ad-versely erode patients’ psycho-social status;create low self-esteem and may change one’s facial identity and appearance. Objective: To determine the histo-pathologic characteristics, variants and demographic pattern of jaw cysts and cyst-like lesions at the University of Nairobi Dental Hospital. Material and Me-thod: This was an analytical and verification study that involved microscopic re-examination of all available incisional/excisional biopsy samples from January 2000 to December 2009 for histo-pathological diagnosis at the University of Nairobi Dental Hospital. Results: 187 jaw cysts and cyst-like lesions were diagnosed at the University of Nairobi Dental Hospital over the ten-year period. Keratocystic odontogenic tumours constituted 28%, dentigerous cysts 25%, nasopalatine duct cysts 19%, radicular cysts 15%, while calcifying odontogenic cysts comprised 4% of all the lesions. The rest of the lesions were between 1% and 3% of all the lesion entities. Conclusion: Keratocystic odontogenic tumours and dentigerous cysts were the most common developmental odontogenic cysts diagnosed in the ten-year period.展开更多
背景:骨性关节炎是骨科最常见的慢性疾病之一。近期研究表明软骨下骨的病变在骨性关节炎的发生发展中具有重要地位,并可能先于并加剧软骨的病变。软骨下骨的病变以异常重建为主要特征,表现为软骨下骨髓病变和软骨下骨囊肿等。当前针对...背景:骨性关节炎是骨科最常见的慢性疾病之一。近期研究表明软骨下骨的病变在骨性关节炎的发生发展中具有重要地位,并可能先于并加剧软骨的病变。软骨下骨的病变以异常重建为主要特征,表现为软骨下骨髓病变和软骨下骨囊肿等。当前针对软骨下骨囊肿的研究还不充分,探究软骨下骨囊肿的成因及临床意义有助于从软骨下骨的角度为骨性关节炎的诊治提供新的思路。目的:综述近年骨性关节炎软骨下骨囊肿的成因假说、病理学特征、临床意义、临床诊断及治疗的研究进展。方法:2位共同第一作者应用计算机检索2019年1月及以前PubMed、Embase数据库,英文检索式:(osteoarthritis OR osteoarthrosis OR osteoarthropathy)AND(subchondralcyst OR pseudocyst OR intraosseous cyst OR bone cyst),语言设定为"英语",共检索到1 224篇文献,58篇符合纳入标准,另手工检索11篇文献,最终纳入69篇文献。结果与结论:(1)软骨下骨髓病变可能是软骨下骨囊肿的"前置病变",二者属同一病理变化的不同阶段;(2)软骨下骨囊肿的形成可能与炎性骨吸收后继发反应性成骨有关;(3)软骨下骨囊肿与关节软骨的退变、关节疼痛显著相关;(4)非类固醇抗炎药、抗骨吸收药、软骨下骨成形术、关节置换术中植骨等可能对软骨下骨髓病变/软骨下骨囊肿有治疗作用,但仍需大样本临床试验证明。展开更多
文摘When subchondral bone defects are present in osteochondral lesions of the talus(OCLT),it is inconclusive whether to allow early weightbearing after microfracture treatment because of the lack of effective support of the newly-formed fibrocartilage.After performing arthroscopic debridement and microfracture treatment on OCLT patients with subchondral bone defects,we allowed patients to have an early postoperative weightbearing exercise to observe their clinical outcome.Forty-two OCLT patients with subchondral bone defects were analyzed.Patients were randomly divided into two groups with 21 patients in each group.After arthroscopic debridement and microfracture treatment,group A was allowed to have early partial weightbearing while weightbearing was delayed in group B.Visual analogue scale(VAS)was used to evaluate joint pain before and after surgery.American Orthopaedic Foot and Ankle Society(AOFAS)anklc-hindfoot score was used to evaluate joint function.Tegner activity scale was used to assess patient's exercise level.The AOFAS ankle-hindfoot score in group A increased from 54.4 to 87.6,and that in group B increased from 54.9 to 87.3.The VAS score in group A decreased from 6.5 to 2.2,and that in group B decreased from 6.4 to 2.3.The Tegner activity scale increased from 2.6 to 4.4 in group A,and that in group B increased from 2.6 to 3.9.There was significant difference in the Tegner activity scale between group A and group B(P<0.05).It was suggested that when performing microfracture treatmenf on OCLT patients with subchondral bone defects,early postoperative weightbearing may achieve similar clinical outcomes as delayed weightbearing,and patients may be better able to return to sports.
文摘Background: Jaw cysts and cyst-like lesions cause facial deformity, destruction of dental tissues and affect masticatory and phonation functions. These ad-versely erode patients’ psycho-social status;create low self-esteem and may change one’s facial identity and appearance. Objective: To determine the histo-pathologic characteristics, variants and demographic pattern of jaw cysts and cyst-like lesions at the University of Nairobi Dental Hospital. Material and Me-thod: This was an analytical and verification study that involved microscopic re-examination of all available incisional/excisional biopsy samples from January 2000 to December 2009 for histo-pathological diagnosis at the University of Nairobi Dental Hospital. Results: 187 jaw cysts and cyst-like lesions were diagnosed at the University of Nairobi Dental Hospital over the ten-year period. Keratocystic odontogenic tumours constituted 28%, dentigerous cysts 25%, nasopalatine duct cysts 19%, radicular cysts 15%, while calcifying odontogenic cysts comprised 4% of all the lesions. The rest of the lesions were between 1% and 3% of all the lesion entities. Conclusion: Keratocystic odontogenic tumours and dentigerous cysts were the most common developmental odontogenic cysts diagnosed in the ten-year period.
文摘背景:骨性关节炎是骨科最常见的慢性疾病之一。近期研究表明软骨下骨的病变在骨性关节炎的发生发展中具有重要地位,并可能先于并加剧软骨的病变。软骨下骨的病变以异常重建为主要特征,表现为软骨下骨髓病变和软骨下骨囊肿等。当前针对软骨下骨囊肿的研究还不充分,探究软骨下骨囊肿的成因及临床意义有助于从软骨下骨的角度为骨性关节炎的诊治提供新的思路。目的:综述近年骨性关节炎软骨下骨囊肿的成因假说、病理学特征、临床意义、临床诊断及治疗的研究进展。方法:2位共同第一作者应用计算机检索2019年1月及以前PubMed、Embase数据库,英文检索式:(osteoarthritis OR osteoarthrosis OR osteoarthropathy)AND(subchondralcyst OR pseudocyst OR intraosseous cyst OR bone cyst),语言设定为"英语",共检索到1 224篇文献,58篇符合纳入标准,另手工检索11篇文献,最终纳入69篇文献。结果与结论:(1)软骨下骨髓病变可能是软骨下骨囊肿的"前置病变",二者属同一病理变化的不同阶段;(2)软骨下骨囊肿的形成可能与炎性骨吸收后继发反应性成骨有关;(3)软骨下骨囊肿与关节软骨的退变、关节疼痛显著相关;(4)非类固醇抗炎药、抗骨吸收药、软骨下骨成形术、关节置换术中植骨等可能对软骨下骨髓病变/软骨下骨囊肿有治疗作用,但仍需大样本临床试验证明。
