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距骨骨软骨损伤


踝关节骨折复位不良-关节应力
Osteochondral defects in the ankle: why painful?Knee Surg Sports Traumatol Arthrosc (2010) 18:570–580
骨软骨损伤
胫骨远端骨软骨 损伤
距骨骨软骨损伤
发生率低:2.6% (23/880)
软骨损伤0级
软骨损伤1级
软骨呈高信号但形态完整
软骨损伤1级
软骨损伤2级
软骨纤维化或出现裂隙
软骨损伤2级
软骨损
软骨下骨囊性变
形成原因:创伤破坏软骨下骨 形成过程:负重的压力导致软骨中的水分进入损伤的
软骨下骨,松质骨中液体压力增高逐渐形成囊肿 部位:距骨内侧多见
微骨折术:术前 52-术后87 ( AOFAS ) Arthroscopic Treatment of Osteochondral Lesions of the Distal TibiaFoot & Ankle International/Vol. 28, No. 8/August 2007 Posttraumatic Subchondral Bone Contusions and Fractures of the Talotibial Joint: Occurrence of “Kissing” Lesions. AJR:175,
距骨骨软骨损伤的治疗
骨髓刺激技术:微骨折/逆行钻孔 组织移植 骨软骨固定 部分关节面置换
体外冲击波(ESW) 脉冲电磁场(PEMFs)
治疗方法的选择
病灶较小:骨髓刺激技术-微骨折/钻孔 病灶较大:骨软骨移植、骨软骨固定、部分关节面置换
踝关节扭伤
流行病学调查显示:在70项体育运动中,踝关节扭 伤在其中24项占第一位
踝关节骨软骨损伤在踝关节扭伤和骨折中的发生率 高达50%
Articular talar injuries in athletes: results of microfracture and autogenous bone graft. Am J Sports Med. 2007;35(10):16801687.
Dipaola JD. Characterizing osteochondral lesions by magnetic resonance imaging. Arthroscopy 7:101–104 Keun-Bae Lee. A comparison of arthroscopic and MRI findings in staging of osteochondral lesions of the talus. Knee Surg Sports Traumatol Arthrosc (2008) 16:1047–1051
骨软骨损伤
胫骨远端骨软骨损伤 距骨骨软骨损伤
Osteochondral Lesions of the Distal Tibial Plafond: Localization and Morphologic Characteristics with an Anatomical Grid. Foot & Ankle International/Vol. 30, No. 6/June 2009
关节应力测定
外踝不稳-关节应力(静态)
外踝不稳-关节应力(动态)
外踝不稳-前移内旋应力增加
The in vivo kinematics of the tibiotalar joint after lateral ankleInstability. Am J Sports Med. 2009 November ; 37(11): 2241–2248.
诊断分期
MRI的Mintz分级
0级:正常 1级:软骨呈高信号但形态完整 2级:软骨纤维化或出现裂隙 3级:软骨呈瓣状掀起暴露骨质 4级:骨软骨游离 5级:骨软骨块移位
Mintz DN. Osteochondral lesions of the talus: a new magnetic resonance grading system with arthroscopic correlation. Arthroscopy 19:353–359
距骨骨软骨损伤—诊断
临床表现无特异性:关节软骨无 神经支配
X线和CT:关节软骨不能显影 MRI可以提示软骨损伤 关节镜可以发现需要处理的骨软
骨损伤
诊断方法比较-MDCT、MRI、关节镜
Prospective study on diagnostic strategies in osteochondral lesions of the talus. THE JOURNAL OF BONE AND JOINT SURGERY. VOL. 87-B, No. 1, JANUARY 2005
The nature history of osteochondral lesions in the ankle. Instr Course Lect. 2010; 59: 375-86.
软骨损伤4级/5级
软骨游离移位
软骨损伤4级/5级
软骨损伤4级/5级
MRI诊断的准确率
文献报道,MRI对踝关节软骨损伤诊断准确率为81~92%
踝关节扭伤
骨软骨损伤 滑膜增生 骨赘形成 纤维粘连
Cha et al. Intra-articular Lesions in Chronic Lateral Ankle InstabilityClinics in Orthopedic Surgery Vol. 4, No. 4, 2012
距骨骨软骨损伤
踝关节扭伤
发生率:每天约1/10000 运动员:每天约5.23~9.35/10000
Ankle injuries among United States high school sports athletes, 2005-2006. J Athl Train. 2007;42(3):381-387.
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