LISS钢板治疗股骨远端骨折疗效分析

目的总结LISS钢板内固定治疗股骨远端闭合性骨折的疗效。方法34例股骨远端骨折患者,按AO分型：A型19例,B型5例,C型10例。股骨髁间骨折12例,股骨髁上骨折22例,均行LISS钢板内固定。结果本组术后发生深部感染1例,经切开引流、抗感染及再次钢板固定治愈;并发膝外翻1例,于术后4个月进行翻修治愈。本组均获随访,平均15（10～34）个月,骨折平均愈合时间为4．5（3～10）个月。疗效评价按HSS膝关节评分：优26例,良4例,可2例,差2例;优良率为88．2％。结论LISS钢板内固定治疗股骨远端骨折可以获得令人满意的疗效。     

LISS钢板治疗股骨远端C型骨折

目的 探讨LISS钢板固定治疗股骨远端C型骨折的临床疗效及手术要点.方法对22例股骨远端C型骨折患者采用LISS钢板固定,骨缺损者一期植骨.结果 22例均获随访,时间12~24个月,骨折均愈合.膝关节功能按Kolmert评分标准：优8例,良11例,可3例.结论 对股骨远端C型骨折采用LISS钢板固定,既能使骨折达到关节面解剖复位,又提供有效稳定的固定,是治疗股骨远端C型骨折的良好方法.     

微创稳定系统(LISS)和解剖钢板治疗股骨远端复杂骨折的对比研究

目的 对比微创稳定系统(LISS)和解剖钢板治疗股骨远端复杂骨折的临床效果.方法 2002年7月至2007年12月,应用LISS及解剖钢板治疗股骨远端复杂骨折42例.解剖钢板组23例,男16例,女7例;年龄21～63岁,平均39.9岁;骨折按AO/OTA分型:A2型3例,A3型7例,C2型12例,C3型1例.LISS钢板组19例,男11例,女8例;年龄20～59岁,平均40.5岁;骨折按AO/OTA分型:A2型2例,A3型6例,C2型10例,C3型1例.比较两组手术时间、手术切口、出血量、是否植骨、术后并发症及愈合时间等,用改良HSS评分来评价术后膝关节功能的改善程度.结果 术后解剖钢板组随访12～18个月,平均13.7个月;USS钢板组随访12～18个月,平均13.8个月.所有患者切口均一期愈合.放射学愈合时间及术后并发症发生总数两组比较差异无统计学意义.解剖钢板组的植骨例数多于LISS钢板组.手术时间、手术切口、出血量及HSS评分比较,LISS钢板组优于解剖钢板组,但USS钢板组钢板刺激症状有增高的趋势.结论 LISS及解剖钢板治疗股骨远端复杂骨折均可取得满意效果,但LISS固定系统具备角度稳定性,骨折固定可靠,体现微创原则,是治疗股骨远端复杂骨折的新趋势.     

微创内固定系统治疗股骨远端骨折

目的探讨微创内固定系统(LISS)治疗股骨远端骨折的疗效。方法应用LISS钢板治疗32例股骨远端骨折患者。结果 32例均获随访,时间12～24(16±2.6)个月。未发现关节面塌陷、复位丢失、螺钉固定不良等现象。按照膝关节HSS评分标准评分:优16例,良13例,可2例,差1例,优良率为90.6%。结论 LISS钢板治疗股骨远端骨折设计合理,操作简便,固定可靠,疗效满意。     

微创稳定系统(LISS)治疗股骨远端复杂骨折的临床观察

目的:探讨LISS钢板在股骨远端复杂骨折中的临床疗效。方法:2008年7月～2010年12月应用LISS钢板经皮微创治疗股骨远端复杂骨折36例。男28例,女8例;年龄25～69岁,平均48.6岁。骨折按AO/OTA分型:A2型7例,A3型9例,C2型18例,C3型2例。观察术后骨折愈合情况,并发症及膝关节功能。结果:36例平均随访12～18个月,平均12.3个月。所有患者切口均一期愈合。放射学愈合时间3～6个月,平均5.4个月。用改良HSS评分来评价术后膝关节功能,优6例,良28例,可2例,优良率94.5%。结论:LISS钢板治疗股骨远端复杂骨折具有创伤小,固定可靠,并发症少,膝关节功能恢复良好等优点,值得临床应用。     

内侧与外侧双切口双锁定钢板内固定治疗AO-C3型股骨远端骨折疗效分析

目的探讨内侧与外侧双切口双锁定钢板内固定治疗AO-C3型股骨远端骨折的临床疗效。方法回顾性分析自2017-10—2019-10采用内侧与外侧双切口双锁定钢板内固定治疗的13例AO-C3型股骨远端骨折。根据影像学检查结果进行Schatzker-Lambert股骨远端骨折功能评分,术后患肢膝关节功能采用HSS评分标准进行评价。结果 13例均获得随访,随访时间平均12.3(4～28)个月。随访期间所有患者骨折全部愈合,骨折愈合时间平均4.5(3.5～7.0)个月。末次随访时Schatzker-Lambert股骨远端骨折功能评分:优11例,良2例。末次随访时膝关节功能HSS评分:优9例,良2例,可2例。结论内侧与外侧双切口双锁定钢板内固定治疗AO-C3型股骨远端骨折具有固定效果确切、骨折愈合率高、并发症少的优点,而关节面解剖复位、肢体力线恢复良好,以及稳定固定是早期负重及康复锻炼的基础。     

LISS固定系统治疗股骨远端骨折

目的：探讨应用AO微创内固定系统（tass）治疗股骨远端骨折的临床效果。方法：应用LISS治疗股骨远端骨折15例,33-A2骨折2例,33-A3骨折5例,33-C2骨折5例,33-C3骨折3例;其中9例开放骨折均为Ⅱ～Ⅲ级,有4例患者为多发骨折患者,伤后4d（2～7d）应用LISS行内固定治疗。结果：所有患者随访3—19个月,骨折均连接,骨折愈合时间8～18周,未出现钢板螺钉松动移位、骨折塌陷、复位丢失等。股骨远端骨折15例,HSS评分优5例;良7例;可3例。膝关节活动范围70°-140°,所有患者膝关节行走无疼痛。结论：LISS能有效治疗各种分型的股骨远端骨折。     

内外侧钢板联合植骨治疗股骨远端骨折术后骨不连

目的探讨内外侧钢板联合植骨治疗股骨远端骨折术后骨不连的疗效。方法2008年8月至2012年7月,采用外侧锁定钢板联合内侧支撑钢板治疗12例股骨远端骨折术后骨不连,对股骨远端骨缺损区均进行植骨。结果术后随访9-32个月,平均15个月,所有骨不连均愈合良好。按HSS膝关节功能评分,优良率达100％。结论内外侧钢板联合植骨能够有效的治疗股骨远端骨折术后骨不连。     

内外侧钢板联合植骨治疗股骨远端骨折术后骨不连

目的探讨内外侧钢板联合植骨治疗股骨远端骨折术后骨不连的疗效。方法2008年8月至2012年7月,采用外侧锁定钢板联台内侧支撑钢板治疗12例股骨远端骨折术后骨不连,对股骨远端骨缺损区均进行植骨。结果术后随访9～32个月,平均15个月,所有骨不连均愈合良好,按HSS膝关节功能评分,优良率达100％。结论内外侧钢板联合植骨能够有效的治疗股骨远端骨折术后骨不连。     

经双切口微创内固定系统治疗股骨远端骨折的临床应用(附47例报告)

目的 探讨经双切口微创内固定系统(LISS)治疗股骨远端骨折的临床疗效.方法 采用经双切口LISS内固定治疗股骨远端骨折47例.结果 随访6～32个月,骨折均愈合.按HSS评分:优25例,良16例,可4例,差2例.结论 应用经双切口LISS内固定治疗股骨远端骨折,可简化手术步骤,减少创伤,取得良好的临床疗效.     

Treatment of distal femur fractures using the less invasive stabilization system: surgical experience and early clinical results in 103 fractures

OBJECTIVE: To summarize the complications and early clinical results of 123 distal femur fractures treated with the Less Invasive Stabilization System (LISS; Synthes, Paoli, PA). DESIGN: Retrospective analysis of prospectively enrolled patients. SETTING: Two academic level I trauma centers. SUBJECTS AND PARTICIPANTS: One hundred nineteen consecutive patients with 123 distal femur fractures (OTA type 33 and distal type 32 fractures) treated by 3 surgeons. One hundred three fractures (68 closed fractures and 35 open fractures) in 99 patients were followed up at least until union (mean follow-up = 14 months, range: 3-50 months). INTERVENTION: Surgical reduction and fixation of distal femur fractures. MAIN OUTCOME MEASUREMENTS: Perioperative complications, radiographic union, infection rate, loss of fixation, alignment, and range of motion. RESULTS: Ninety-six (93%) of 103 fractures healed without bone grafting. All fractures eventually healed with secondary procedures, including bone grafting (1 of 68 closed fractures and 6 of 35 open fractures). There were 5 losses of proximal fixation, 2 nonunions, and 3 acute infections. No cases of varus collapse or screw loosening in the distal femoral fragment were observed. Malreductions of the femoral fracture were seen in 6 fractures (6%). The mean range of knee motion was 1 degrees to 109 degrees . CONCLUSIONS: Treatment of distal femur fractures with the LISS is associated with high union rates without autogenous bone grafting (93%), a low incidence of infection (3%), and maintenance of distal femoral fixation (100%). No loss of fixation in the distal femoral condyles was observed despite the treatment of 30 patients older than 65 years. The LISS is an acceptable surgical option for treatment of distal femoral fractures.     

LISS钢板治疗股骨中下段粉碎性骨折的临床应用体会

目的探讨LISS钢板治疗股骨中下段粉碎性骨折的方法和临床疗效。方法应用LISS钢板对7例股骨远端粉碎性骨折,5例股骨中下段骨折,3例股骨远端骨折伴髁间粉碎性骨折患者采用LISS钢板治疗。结果随访6～24个月,平均10个月。患者骨折全部愈合,愈合时间平均为9个月,所有患者均未出现内植物失败的情况,术后无肢体缩短、膝内翻、膝关节强直等并发症发生。结论 LISS钢板治疗股骨髁间及中下段粉碎性骨折,是一种较好的内固定治疗方法。     

Successful results of minimally invasive surgery for comminuted supracondylar femoral fractures with LISS: comparative study of multiply injured and isolated femoral fractures

Background The aim of this prospective study was to compare the outcomes of distal femoral fractures treated by the Less Invasive Stabilization System (LISS) in multiply injured and isolated fracture cases. Methods This study comprised 26 patients (16 men, 10 women), who had 27 distal femoral fractures. Patients were divided into two groups; multiple injuries (group I) or isolated distal femoral fracture (group II). The average Injury Severity Score of group I was 26.7. Operations were performed according to biological fixation principles in a submuscular manner. No bone grafting was performed to enhance the healing. The cases were evaluated based on the criteria of Schatzker–Lambert and the modified Hospital for Special Surgery (HSS) scoring system. Results The mean follow-up period was 25.8 months. Union was achieved in all cases. Two patients in group I required débridement procedures due to deep infection. One of them healed completely but the other did not. The average range of knee motion of groups I and II at the last control were 112.8° and 121.8°, respectively. The mean modified HSS scores were 73.9 and 79.9, respectively. There was no significant difference in the HSS scores or the range of knee motion. The time to full weight bearing was longer in group I owing to the concomitant injuries. Conclusions We concluded that LISS is a useful method for comminuted supracondylar fractures with multiple trauma patients as the results showed no significant differences when compared with those of patients with isolated femoral fractures.     

Minimal-invasive treatment of distal femoral fractures with the LISS (Less Invasive Stabilization System): a prospective study of 30 fractures with a follow up of 20 months

BACKGROUND: There is no consensus on the best treatment of distal femoral fractures. PATIENTS AND METHODS: In a prospective study, we treated 29 patients with 30 distal femoral fractures with the Less Invasive Stabilization System (LISS) from 1997 to 2000. Almost 1/2 of them had open fractures, 1/3 extraarticular type A and 2/3 articular fractures type C (AO classification) and these had been caused by high-energy trauma with concomitant severe injuries or osteoporosis. RESULTS: The follow-up examinations after mean 20 (13-42) months consisted of radiographs, and determination of the Lysholm Knee Score and Knee Society Score (KSS). The outcome correlated with the severity of the fracture, anatomic reduction, exact positioning and fixation of the LISS and concomitant injuries. INTERPRETATION: We found the LISS for treatment of distal femoral fractures of all types to be a safe procedure with good results after careful planning and experience with this surgical technique. There is usually no need for primary cancellous bone grafting.     

Less invasive stabilisation system plating for distal femoral fractures

PURPOSE. To review the outcome of less invasive stabilisation system (LISS) plating for complex distal femoral fractures. METHODS. Records of 6 men and 11 women who underwent LISS plating for complex distal femoral fractures from September 2001 to August 2005 were reviewed. One patient who died 12 months after surgery due to a cardiac problem was excluded. The mean age of the remaining patients was 61 years and the mean follow-up period was 12 months. Four patients, 3 of whom had open fractures, had sustained high-energy trauma. According to the AO classification, 8 fractures were type 33A and 9 type 33C. RESULTS. The mean time to union was 17 weeks. Two patients with non-union underwent a second LISS plating and bone grafting, resulting in a satisfactory final outcome. Delayed radiographic union was observed in one patient, but clinically he was asymptomatic and mobile. The fracture finally united at 9 months. CONCLUSION. LISS plating is useful in treating complex distal femoral fractures, resulting in reduced blood loss and low infection rates, while achieving early mobility due to primary stability of the construct.     

微创内固定系统治疗下肢粉碎性骨折

目的探讨微创内固定系统（LISS）治疗股骨远端及胫骨近端复杂骨折的疗效。方法使用LISS闭合复位治疗股骨远端及胫骨近端复杂骨折16例。观察术后软组织恢复及骨折愈合情况。结果16例随访4～12个月,术后骨折复位、对线良好,无内固定松动或失效等并发症。结论LISS治疗膝关节周围骨折具有创伤小、固定牢固、骨折愈合时间短、最大程度保护膝关节功能的优点。     

Distal femoral fractures: long-term outcome following stabilisation with the LISS

We studied 29 patients with distal femoral fractures stabilised using the less invasive stabilisation system (LISS). Four patients were excluded from the final follow-up (three deaths and one case of quadriplegia). The mean age of the remaining 25 patients (9 males and 16 females) was 60.9 years and the mean follow-up 18 months (range 12-24 months). Eleven patients were tertiary referrals from other hospitals (seven cases were referred due to failure of primary fixation). Overall, there were 12 cases of high-energy trauma (7 open fractures). According to the AO classification, there were 5 Type 33A, 2 Type 33B and 12 Type 33C fractures and 4 Type 32A, 1 Type 32B, 1 Type 32C fractures. Functional assessment was performed using the modified Hospital for Special Surgery (HSS) and the Schatzker and Lambert scores. The average time to union in 22 cases was 3.5 months (range 2-5 months). All of the acute cases united without the need for bone grafting. There were three out of seven cases of non-union in the salvage group still undergoing treatment. The overall result in the acute cases was good and in the salvage cases fair. While this is a small series of patients, our preliminary data indicate favourable results using the LISS in stabilising acute distal femoral fractures. However, when the LISS is used as a revision tool the results seem to be less satisfactory. The system appears to be user-friendly and no technical difficulties were encountered.