Unger K, Rahimi F, Bareither D, Muehleman C
Dr. W. M. Scholl College of Podiatric Medicine, Chicago IL 60610, USA.
J Foot Ankle Surg. 2000 Jan-Feb;39(1):24-33. doi: 10.1016/s1067-2516(00)80060-5.
Plain-film radiography is commonly used in the assessment of joints affected by osteoarthritis. It has been shown that the condition of articular cartilage in the knee, when grossly assessed, does not always correlate well to the radiographic evaluation of the joint. The aim of this study was to determine whether a relationship existed between the radiographic appearance of the subchondral bone and the morphological condition of the articular cartilage surfaces of the first metatarsophalangeal joint. Forty-nine pairs of cadaveric metatarsals and their respective proximal phalanges were studied in order to determine the correlation between articular cartilage degeneration and radiographic grade using a modified Kellgren-Lawrence scale. The relationship between cartilage degeneration and age, gender, osteophytes, metatarsal length, and measured angles (proximal articular set angle, distal articular set angle, intermetatarsal angle) was also investigated. It was found that there was a significant correlation between radiographic grade and cartilage degeneration on both the metatarsal head and the base of the proximal phalange (r2 = .2038 and .1733, respectively). However, while useful in the clinical setting, bony changes of the first metatarsophalangeal joint, as seen radiographically, fail to provide a full representation of the level of cartilage degeneration on the articular surfaces of this joint.
普通X线摄影常用于评估受骨关节炎影响的关节。研究表明，对膝关节的关节软骨状况进行大体评估时，其结果与关节的X线评估结果并不总是高度相关。本研究的目的是确定第一跖趾关节的软骨下骨X线表现与关节软骨表面形态状况之间是否存在关联。研究了49对尸体跖骨及其相应的近端趾骨，以便使用改良的凯尔格伦-劳伦斯量表确定关节软骨退变与X线分级之间的相关性。还研究了软骨退变与年龄、性别、骨赘、跖骨长度和测量角度（近端关节固定角、远端关节固定角、跖间角）之间的关系。研究发现，跖骨头和近端趾骨基部的X线分级与软骨退变之间存在显著相关性（r2分别为0.2038和0.1733）。然而，虽然在临床环境中有用，但第一跖趾关节的骨质变化，如X线所见，未能充分反映该关节关节表面软骨退变的程度。
