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目的:探讨PRP凝胶(高浓度血小板血浆)在下颌骨部分髁状突游离骨折手术中的应用价值。方法:选择临床确诊的下颌骨部分髁状突游离骨折40例,随机分为观察组和对照组各20例。观察组在鼻内镜引导下寻找游离髁状突,取出后将剩余髁状突关节面经适当打磨,放置颞颌关节窝内,然后把制备好的适量PRP凝胶贴敷于关节上下腔内,缝合关节囊后在关节囊外再贴敷PRP凝胶,逐层关闭手术切口;对照组髁状突游离骨折取出后,剩余髁状突关节面经适当打磨直接放置颞颌关节窝内,不进行PRP凝胶贴敷处理。观察两组术后麻木感消失时间,正常进食时间和消肿时间。结果:观察组术后麻木感消失时间(40±10)min,显著短于对照组的(50±20)min(P<0.05);观察组术后正常进食时间(4±1)天,显著短于对照组的(6±3)天(P<0.05);观察组术后消肿时间(3±1)天,显著短于对照组的(5±4)天(P<0.05)。结论:PRP凝胶适用于下颌骨部分髁状突游离骨折取出后的修复重建。
Objective: To investigate the value of PRP gel (high concentration of platelet plasma) in partial mandibular condyle free fracture surgery. Methods: Forty cases of condylar free fractures of mandible were selected and randomly divided into observation group (20 cases) and control group (20 cases). The observation group under the guidance of nasal endoscopy to find free condyle, remove the remaining condylar articular surface after appropriate grinding, placing the temporomandibular joint socket, and then prepared the right amount of PRP gel attached to the upper and lower articular cavity , The suture capsulotomy in the joint capsule and then apply PRP gel, layer by layer close the surgical incision; control group condylar free fractures removed, the remaining condylar articular surface by proper grinding placed temporomandibular joint nest, not PRP gel application treatment. The disappearance of numbness, normal eating time and swelling time were observed in the two groups. Results: The disappearance time of numbness in the observation group (40 ± 10) min was significantly shorter than that in the control group (50 ± 20) min (P <0.05), and the normal eating time was 4 ± 1 days in the observation group (6 ± 3) days (P <0.05). The swelling time of observation group was shorter than that of control group (3 ± 1) days (P <0.05). Conclusion: PRP gel is suitable for repairing and repairing mandibular condyle free fracture.