Al-Ani M Z, Davies S J, Sloan P, Rushton V E, Horner K, Gray R J M
Department of Prosthodontics, University Dental Hospital of Manchester, Higher Cambridge Street, Manchester M15 6FH, UK.
Br J Oral Maxillofac Surg. 2004 Aug;42(4):335-6. doi: 10.1016/j.bjoms.2004.02.023.
The aim of this study was to investigate whether arthrography itself altered the range of mandibular movements, in a group of patients with locking of the temporomandibular joint (TMJ). The clinical records of a series of 161 patients who were diagnosed with locking of the TMJ were retrospectively analysed. Mouth opening had improved in 57 out of 161 patients (35%). Twenty-three patients (14%) had improved by 5 mm or less. Nineteen patients (11%) had improved by more than 5 mm but less than 10 mm, whereas 15 patients (9%) had improved by more than 10 mm. Of the patients who experienced an improved mouth opening, only nine (15%) had improved from their pre-arthrography restricted maximum opening to beyond the lower limit of normal. This suggests that the injection of contrast medium had an effect on the range of vertical opening in patients with displacement of the disc without reduction.
本研究的目的是调查在一组颞下颌关节（TMJ）锁定患者中，关节造影本身是否会改变下颌运动范围。对一系列161例被诊断为TMJ锁定患者的临床记录进行了回顾性分析。161例患者中有57例（35%）张口情况有所改善。23例患者（14%）改善了5毫米或更少。19例患者（11%）改善超过5毫米但小于10毫米，而15例患者（9%）改善超过10毫米。在张口情况有所改善的患者中，只有9例（15%）从关节造影前受限的最大开口度改善到超过正常下限。这表明造影剂注射对盘移位未复位患者的垂直开口范围有影响。
