Clinical course of masticatory function recovery following arthrocentesis in patients with unilateral mandibular condyle head fracture

The aim of this study was to investigate the clinical course of masticatory function recovery following arthrocentesis. Patients with a unilateral condylar head fracture who underwent arthrocentesis for therapeutic reasons were evaluated and compared with patients with a unilateral condylar head fracture who did not undergo arthrocentesis. At 3 months after treatment, the occlusal contact area and maximum bite force in patients with a fracture treated with arthrocentesis were greater than in those who did not receive arthrocentesis at the same time points, although the differences were not significant. Moreover, at 1 and 3 months following arthrocentesis, mean (±SD) occlusal contact area (1 month: 1.99 ± 0.55 mm², p = 0.01; 3 months: 2.90 ± 1.36 mm², p = 0.03) and maximum bite force (1 month: 82.45 ± 15.04 N, p = 0.01; 3 months: 101.11 ± 14.53 N, p = 0.01) on the fractured side in patients who underwent that treatment were significantly reduced when compared with those on the non-fractured side. The authors conclude that if the priority is to avoid open reduction and internal fixation, then the arthrocentesis approach might be a less invasive alternative, albeit with the price of a prolonged healing interval.     

Treatment of skeletal open bite using a navigation system: CAD/CAM osteotomy and drilling guides combined with pre-bent titanium plates

Severe skeletal open bite associated with posterior vertical maxillary excess and mandibular deformity is considered a difficult problem in orthodontic and surgical treatment. This study used a navigation system for the correction of severe skeletal open bite in order to accurately transfer the virtual plan to the actual operation and achieve precise rigid internal fixation in bimaxillary osteotomies of the jaws. Twelve patients with a severe skeletal open bite associated with vertical maxillary excess and mandibular deformity were recruited. All patients underwent Le Fort I osteotomy and bilateral sagittal split ramus osteotomy with the guidance of this navigation system. Computed tomography and cephalometric examinations were performed to evaluate the correction of the deformity. Deviations between the simulated plan and actual postoperative outcome were measured to determine the precision of the surgery. Satisfactory and stable results were achieved in all patients postoperatively, without complications or relapse during follow-up. Photographs and cephalometric evaluations showed that the facial profile and occlusion were improved. Assessment of the deviations between the simulated plan and actual postoperative outcome showed that the navigation system can precisely transfer the virtual plan to the actual operation. The results suggest that the navigation system can accurately transfer the virtual plan to the actual operation during bimaxillary jaw osteotomies, without relapse, in patients with a severe skeletal open bite.     

蛇伤散外敷联合艾灸治疗五步蛇咬伤的临床观察与护理

目的 探讨蛇伤散外敷联合艾灸治疗五步蛇咬伤的临床效果。方法 选取本院2018年3月～2019年9月门诊患者117例,随机分为观察组59例和对照组58例。对照组给予抗五步蛇毒血清、抗破伤风、糖皮质激素、对症处理、局部处理等西医常规治疗,并给予护理配合;观察组在常规西医治疗与护理配合基础上,咬伤局部给予蛇伤散外敷,并施以八风、八邪灸疗。治疗结束后,进行疗效评价,并观察其他指标,包括消肿时间、止痛时间、臂围差值及住院时间。结果 观察组、对照组治愈率分别为76.3%、56.9%,两组总体疗效经秩和检验,差异有统计学意义(P0.05)。观察组、对照组止痛时间分别为(6.3±1.4) h、(11.8±2.9) h,与对照组比较,观察组明显缩短(P0.05);观察组、对照组消肿时间分别为(97.3±5.8)h、(152.5±37.2) h,与对照组比较,观察组明显缩短(P0.05);观察组治疗前后臂围差值为(5.9±1.1)cm,对照组为(2.5±0.6)cm,与对照组比较,观察组臂围明显减小(P0.05);观察组、对照组住院时间分别为(3.9±0.9)d、(5.5±1.2)d,与对照组比较,观察组时间明显缩短(P0.05)。结论 蛇伤散外敷联合艾灸治疗五步蛇咬伤在临床疗效、消肿止痛等方面均有效,值得进一步推广应用。     

Snake bite induced cellulitis leading to infected open dislocation of the first metacarpophalangeal joint – A rare complication

Non-traumatic open dislocation of the first metacarpophalangeal joint is a rare phenomenon. We present a rare such occurrence secondary to snake bite induced cellulitis. A 22-year-old girl presented with pain and instability of her right thumb two months. She had snake bite two months back following which she developed cellulitis which gradually became infected. She presented with raw area over her dorsal aspect of the thumb with active infection. Radiographs revealed metacarpophalangeal joint dislocation. She underwent debridement, stabilisation and soft tissue coverage. At final follow up, she was pain free and the wound healed completely.