Department of Pediatrics, Erasmus MC-Sophia Children's Hospital, Rotterdam, The Netherlands.
Angle Orthod. 2009 Nov;79(6):1057-62. doi: 10.2319/093008-511R.1.
To investigate changes in the craniofacial skeleton in relation to the changes in condylar alterations that occur during long-term follow-up in patients with juvenile idiopathic arthritis.
Temporomandibular joint (TMJ) involvement is defined as a condylar alteration that is observed on the orthopantomogram. Lateral cephalograms were used to determine linear and angular measurements.
Seventy of 97 patients from the initial study cohort were included, with a mean follow-up of 68 months. The overall prevalence of condylar alterations and posterior rotation of the mandible decreased; however, the prevalence of retrognathia remained the same. Patients showed improvement in the degree of retrognathia and posterior rotation (40% ANB, 51% OP-SN, and 44% GO-GN-SN). Improvement in the degree of retrognathia was seen more often in patients with improved condylar alterations than in patients with persistent alterations and in those without alterations (50%, 33%, and 28%, respectively). The degree of posterior rotation improved almost equally in patients without TMJ involvement and in patients with improved condylar alterations (57% and 50% by OP-SN, and 67% and 38% GO-GN-SN, respectively) and did not improve in patients with stable persistent alterations.
Both condylar and craniofacial alterations can improve in patients with juvenile idiopathic arthritis.
探讨青少年特发性关节炎（JIA）患者长期随访中髁突改变与颌骨变化的关系。
TMJ 受累定义为在全景片中观察到的髁突改变。使用侧位头颅侧位片来确定线性和角度测量。
初始研究队列中的 97 例患者中有 70 例纳入，平均随访 68 个月。总的来说，髁突改变和下颌后旋的发生率下降，但小下颌的发生率保持不变。患者的小下颌和后旋程度有所改善（40% ANB、51% OP-SN 和 44% GO-GN-SN）。在髁突改变改善的患者中，小下颌程度的改善更为常见，而在髁突改变持续存在和无改变的患者中则不然（分别为 50%、33%和 28%）。在无 TMJ 受累和髁突改变改善的患者中，后旋程度几乎相等（OP-SN 分别为 57%和 50%，GO-GN-SN 分别为 67%和 38%），而在髁突改变稳定持续存在的患者中则无改善。
青少年特发性关节炎患者的髁突和颅面改变均可改善。
