McCanny C M, Roberts-Harry D P
Leeds Dental Institute, UK.
Cleft Palate Craniofac J. 1998 Sep;35(5):442-6. doi: 10.1597/1545-1569_1998_035_0442_acotdb_2.3.co_2.
To compare the outcome of the trephine with open hip surgery for alveolar bone grafting in cleft lip and palate surgery.
The study was retrospective. The radiographs were assessed blindly and on two separate occasions 1 week apart.
University Teaching Hospital.
PATIENTS, PARTICIPANTS: In one group (group A), a trephine was used; in the other (group B), open hip surgery was employed. Group A was comprised of 16 patients (nine with unilateral and seven with bilateral clefts of the lip and palate) and group B, 13 patients (eight unilateral and five bilateral). The prime entry criterion for inclusion in the study was that the canine tooth had erupted into the graft site.
A long cone periapical radiograph was taken of the erupted canine tooth in the graft site.
The radiographs were graded from type I to type IV, as described by Bergland et al. (1986a). A comparison was also made of the eruption of the canine, postoperative morbidity, and length of stay in hospital for each group.
There was no statistically significant difference in the interdental bone height (p=.61, Mann-Whitney U test). In group A, all patients had a satisfactory clinical outcome (type I or II), and in group B, only one patient had an unsatisfactory result (type III). The spontaneous eruption of the canine and the number of nights spent in the hospital were also similar for both groups. However, no patients in group A suffered postoperative complications, whereas three patients in group B reported either a limp or postoperative infection of the hip.
Both techniques produced satisfactory repair of the bony defect, but the open hip surgery resulted in greater postoperative morbidity.
比较环钻法与开放式髋部手术在唇腭裂手术中进行牙槽骨植骨的效果。
本研究为回顾性研究。对X光片进行双盲评估，且在相隔1周的两个不同时间点进行。
大学教学医院。
患者、参与者：一组（A组）采用环钻法；另一组（B组）采用开放式髋部手术。A组由16例患者组成（9例单侧唇腭裂，7例双侧唇腭裂），B组由13例患者组成（8例单侧，5例双侧）。纳入本研究的主要入选标准是尖牙已萌出至植骨部位。
对植骨部位已萌出的尖牙拍摄长锥根尖片。
X光片按照Bergland等人（1986年a）所述的方法从I型到IV型进行分级。还对每组尖牙的萌出情况、术后发病率和住院时间进行了比较。
两组间牙槽骨高度差异无统计学意义（p = 0.61，Mann-Whitney U检验）。A组所有患者临床效果均满意（I型或II型），B组只有1例患者效果不满意（III型）。两组尖牙的自然萌出情况和住院天数也相似。然而，A组无患者出现术后并发症，而B组有3例患者报告有跛行或髋部术后感染。
两种技术对骨缺损的修复效果均令人满意，但开放式髋部手术术后发病率更高。
