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单侧多功能外固定器修复骨支架

报道７６例，８４个肢体，采用单侧多功能外固定器修复骨折后骨支架。术后随访２～１２个月，平均骨愈合时间儿童为６周，成人股骨为４个月，胫骨为４．５个月。全部病例无针眼感染，无畸形愈合等并发症。介绍了手术操作要点，讨论了这种方法的优点等。

THE CLINICAL EFFECT OF ANTIROTATION REDUCTION INTERAL FIXATOR ON THE TREATMENT OF FRESH THORACOLUMBAR SPINE FRACTURE

Objective To evaluate the effect of self-designed antirotation reduction internal fixator(ARRIF) on treating different spine segment fracture.Methods From August 1999 to March 2003, 76 patients(48 males and 28 females, aged from 22 to 59 with an average of 34.1) with thoracolumbar fracture were operatively treated by ARRIF. The follow-up period ranged from 6 to 21 months(15 months in average). Classification according to injury segment: flexion compression racture 27 cases, burst fracture 42 cases, flexion distraction injury 3 cases, flexion revolving type fracture dislocation 2 cases, shear force type dislocation 2 cases. Classification according Frankel’s grade:A grade 16 cases, B grade 15 cases, C grade 27 cases, D grade 10 cases, E grade 8 cases.Operation duration, volume of bleeding, incidence postoperation complication and effect of reduction fixation were observed. Results The operation duration of ARRIF was 1.2 h in average, and there was about 200 ml volume of bleeding during operation. The nerve function showed one Frankel’s grade improvement after operation were as follows:A grade 8 cases(50%), B grade 11 cases (73.3%), C grade20 cases(74.1%), D grade 3 cases (30%); 2 Frankel’s E cases have no nerve function changes.The nerve function damage have no aggravation in all the patients,the postoperation Cobb’s angle was averagely corrected 22°. The horizontal displacement of dislocation vertebrae was averagely corrected 28% in sagittal plane, the statistical analysis had significant variance(Plt;0.01).ARRIF had no complications of the breakage of screws and rods. Conclusion ARRIF proves to be a valid internal fixator in reducing and fixing different thoracic lumbar segment spine fracture.

Nitinol memory alloy two foot fixator with autologous cancellous bone grafting for old scaphoid fracture and nonunion

ObjectiveTo summarize the effectiveness of nitinol memory alloy two foot fixator with autologous cancellous bone grafting in treating old scaphoid fracture and nonunion.MethodsBetween January 2013 and January 2017, 11 patients of old scaphoid fracture and nonunion were treated with nitinol memory alloy two foot fixator and autologous cancellous bone grafting. All patients were male with an average age of 26.1 years (range, 18-42 years). The fractures were caused by sport in 3 cases, falling in 7 cases, and a crashing object in 1 case. The interval between injury and operation was 6-18 months (mean, 8.9 months). Postoperative outcome measures included operation time, fracture healing time, grip strength, range of motion (ROM) of flexion, extension, ulnar deviation, and radial deviation, Mayo score, visual analogue scale (VAS) score, and the Disabilities of the Arm, Shoulder, and Hand (DASH) score.ResultsThe operation time was 35-63 minutes (mean, 48 minutes). All incisions had primary healing with no infection and loosening or breakage of internal fixator. All patients were followed up 12-30 months (mean, 20.7 months). X-ray films showed that fracture healing was achieved in all patients with an average time of 15 weeks (range, 12-25 weeks). All internal fixators were removed after 10-12 months of operation (mean, 11.2 months). At last follow-up, the grip strength, ROMs of flexion, ulnar deviation, and radial deviation were superior to those before operation (P<0.05), no significant difference was found in ROM of extension between pre- and post-operation (t=0.229, P=0.824). There were significant differences in above indexes between affected and normal sides (P<0.05). At last follow-up, the Mayo, VAS, DASH scores were also significantly superior to those before operation (P<0.05).ConclusionFor the old scaphoid fracture and nonunion, Ni-Ti arched shape-memory alloy fixator and autologous cancellous bone grafting can obtain good effectiveness, which is an effective treatment.

AESTRACTS CHOICE OF METHODS OF REPAIR OF FIREARM INJURIES OF EXTREMITIES

The causes of development of 56 cases of bone defects from firearm injuries of extremities were analyzed, and the advantages of transfer of vascularized iliac bone graft with deep iliac circumflex vessels in 28 cases and the indications of transfer of vascularked fibular bone graft with fibular vessel in 15 cases and the exporiences in 9 cases from the methed of transter of seapula-cutaneous composite graft were summarized. It was emphatically pointed out that the half-circle typo externa fixators had its unique advantages in the treatment of the bone defects of long bones of extremities from firearm injuries. It would enentually become the method of priority for the treatment of fractures, nonunion of fractures and bone defects of extremities from firearm injuries.

经口气管插管固定器的设计

颈椎前路钢板内固定术对维持椎间高度的作用

A BIOMECHANICAL STUDY OF STABILITY OF ATLANTOAXIAL JUNCTION FIXATION WITH ANTERIORAPPROACH SCREW FIXATION THROUGH C2 VERTEBRAL BODY TO C1 LATERAL MASS AND GALLIE’STECHNIQUE

【Abstract】 Objective To determine the three-dimensional stabil ity of atlantoaxial reconstruction withanterior approach screw fixation through C2 vertebral body to C1 lateral mass and Gall ie’s technique (ASMG) for C1,2instabil ity. Methods Twenty-five human cadaveric specimens (C0-3 ) were divided randomly into 5 groups (n=5). Thethree-dimensional ranges of motion C1 relative to C2 were measured under the five different conditions：the intact state group (group A), type II odontoid fracture group (group B), posterior C1,2 transarticular screw fixation group (group C), ASM group (group D) and ASMG group (group E). The three-dimensional ranges of motions C1 relative to C2 by loading ± 1.5 Nm were measured under the six conditions of flexion/extension, left/right lateral bending, and left/right axial rotation. The obtained data was statistically analyzed. Results In each group, the three-dimensional ranges of motion C1 relative to C2 under the six conditions of flexion/extension, left/right lateral bending, and left/right axial rotation were as follows: in group A (8.10 ± 1.08), (8.49 ± 0.82), (4.79 ± 0.47), (4.93 ± 0.34), (28.20 ± 0.64), (29.30 ± 0.84)°; in group B (13.60 ± 1.25), (13.80 ± 0.77), (9.64 ± 0.53), (9.23 ± 0.41), (34.90 ± 0.93), (34.90 ± 1.30)°; in group C (1.62 ± 0.10), (1.90 ± 0.34), (1.25 ± 0.13), (1.37 ± 0.28), (0.97 ± 0.14), (1.01 ± 0.17)°; in group D (2.03 ± 0.26), (2.34 ± 0.49), (1.54 ± 0.22), (1.53 ± 0.30), (0.80 ± 0.35), (0.76 ± 0.30)°; in group E (0.35 ± 0.12), (0.56 ± 0.34), (0.44 ± 0.15), (0.55 ± 0.16), (0.43 ± 0.07), (0.29 ± 0.06)°. Under the six conditions, there were generally significant differences between group A and other four groups, and between group B and groups C, D and E (P lt; 0.001), and between group E and groups C, D in flexion/ extension and left/right lateral bending (P lt; 0.05). There was no significant difference between group E and groups C, D in left/right axial rotation (P gt; 0.05). Conclusion In vivo biomechanical studies show that ASMG operation has unique superiority in the reconstruction of the atlantoaxial stabil ity, especially in controll ing stabil ity of flexion/extension and left/right lateral bending, and thus it ensures successful fusion of the implanted bone. It is arel iable surgical choice for the treatment of the obsolete instabil ity or dislocation of C1, 2 joint.

PRELIMINARY APPLICATION OF THREE-DIMENSIONAL PRINTING PERSONALIZED EXTERNAL FIXATOR IN SERIOUS TIBIOFIBULA FRACTURES

ObjectiveTo explore a new method of treating serious tibiofibula comminuted fracture by using three-dimensional (3-D) printing personalized external fixator. MethodsIn April 2015, a male patient (aged 18 years with a height of 171 cm and a weight of 67 kg) with left tibiofibula comminuted fracture was included in the study. Computer-assisted reduction technique combined with 3-D printing was used to develop a customised personalized external fixator for fracture reduction. The effectiveness was observed. ResultsThe operation time was about 10 minutes without fluoroscopy, and successful reduction was obtained. The patient had equal limb length after operation. X-ray films showed that the posterior angulation of distal fracture was corrected 37°, and the eversion angle was corrected 4°. The tibial fractures had good paraposition or alignment, and the lower limb force line was corrected completely. No new fracture displacement occurred. The clinical healing time of fracture was 3.5 months and the bone union was achieved after 8 months. The function of affected limb recovered well after operation. ConclusionA personalized external fixator for serious tibiofibula comminuted fracture reduction made by 3-D printing technique has the merits of easy manipulation, high individuation, accurate reduction, stable fixation, and no need of fluoroscopy.

外固定支架结合有限内固定治疗GustiloⅢ型胫腓骨骨折

【摘要】目的观察外固定支架结合有限内固定治疗GustiloⅢ型胫腓骨骨折的疗效。方法回顾性分析我院52例GustiloⅢ型胫腓骨骨折患者的治疗,其中男36例,女16例;平均年龄42岁;均急诊行清创、骨折复位外固定支架结合有限内固定固定术。结果本组52例患者均完成随访,随访时间7～18个月,平均14个月。随访结果显示优36例、良9例、可5例、差2例,优良率为865%。平均愈合时间7个月,拆除外固定支架时间6～14个月。结论外固定架结合有限内固定治疗GustiloⅢ型胫腓骨骨折,明显减少并发症发生率,降低创面感染率。

创伤性浮膝合并血管损伤的治疗

目的 总结创伤性浮膝合并血管损伤的手术方法及疗效。 方法 2001 年3 月－ 2008 年3 月收治23 例创伤性浮膝合并血管损伤。男14 例，女9 例；年龄21 ～ 63 岁。车祸伤15 例，高处坠落伤5 例，重物砸伤3 例。开放骨折16 例，按照Gustilo 分型：Ⅰ型8 例，Ⅱ型6 例，Ⅲ型2 例。血管损伤类型：横行断裂12 例，纵行裂伤4 例，挫伤缺损4 例，内膜损伤栓塞3 例。受伤至入院时间为30 min ～ 4 h，平均2 h。采用小切口复位股骨逆行交锁髓内钉联合胫骨外固定器固定，同时修复血管。 结果 骨折均获解剖复位。术后外固定针道感染3 例。4 例于术后7 ～ 10 d 出现切口浅表感染，其余切口均Ⅰ期愈合。1 例于术后12 d 因缺血坏死、感染行截肢术，余22 例保全肢体。22 例术后获随访，随访时间14 ～ 38 个月，平均18.5 个月。骨折均愈合，愈合时间为15 ～ 24 周。术后1 年肢体功能按Karlstrouml;m 等评价标准，优10 例，良8 例，中3 例，差1 例。 结论 小切口复位股骨逆行交锁髓内钉联合胫骨外固定器固定，同时修复血管，是治疗创伤性浮膝合并血管损伤的一种较好选择。