Comminuted fractures of the proximal ulna—Preliminary results with an anatomically preshaped locking compression plate (LCP) system

Introduction

The purpose of this investigation was to review the preliminary results and patients outcome following treatment with an anatomically preshaped LCP in patients with comminuted fractures of the proximal ulna. We hypothesized that this fixation system provides equal or superior results in fracture care when compared with other available plating devices, but results in better patient's comfort due to its low-profile design.

Patients and methods

Between 2007 and 2009, 15 patients with comminuted fractures of the proximal ulna including three posterior Monteggia fractures were managed with the preshaped LCP olecranon plate. The patients were invited for clinical examination at a mean duration of 16 months, retrospectively. Validated patient-oriented assessment scores involving the Mayo Elbow Performance Index (MEPI) and the shortened Disability of the Arm, Shoulder and Hand (Quick-DASH) score, postoperative range of motion, objective muscle-strengths testing and patient's satisfaction were evaluated. All patients had follow-up radiographs.

Results

Fourteen patients were available for evaluation. The mean arc of elbow motion was 129°. The mean MEPI was 97 with good results in two patients and excellent results in 12 patients. The mean Quick-DASH was 13. Thirteen of fourteen patients documented satisfaction with their elbow outcome. There was one patient with symptomatic hardware and one patient complained about deficit of motion. In four patients the hardware was removed including two patients with elective removal. Fourteen fractures healed with ulnohumeral congruity after a mean time to union of 11 weeks. One fracture non-union occurred without mechanical failure or loss of reduction.

Conclusion

Anatomically preshaped LCP olecranon plating is an effective fixation method for comminuted fractures of the proximal ulna allowing reliable stability for early elbow motion. The functional results are comparable with formerly described plating systems. A low rate of symptomatic hardware removal suggests better patient's compatibility.     

经尺骨鹰嘴截骨与经肱三头肌两侧入路双钢板内固定治疗AO-C型肱骨远端骨折的疗效分析

目的 比较经尺骨鹰嘴截骨与经肱三头肌两侧入路双钢板内固定治疗AO-C型肱骨远端骨折的临床疗效.方法 回顾性分析自2014-02-2018-05诊治的108例AO-C型肱骨远端骨折,60例采用经尺骨鹰嘴截骨入路双钢板内固定治疗(观察组),48例采用经肱三头肌两侧入路双钢板内固定治疗(对照组).比较两组手术时间、术中出血量...     

中空螺钉钛丝张力带内固定治疗尺骨鹰嘴骨折

目的：探讨中空螺钉钛丝张力带内固定治疗尺骨鹰嘴骨折的疗效。方法：2010年4月～2011年7月共收治14例尺骨鹰嘴骨折患者,男9例,女5例,年龄20～60岁,均为闭合性尺骨鹰嘴骨折,手术采用肘后直切口,复位骨折后用2枚1.5mm的导针经鹰嘴平行钻入,钻孔后沿导针拧入4.5mm半螺纹自攻中空螺钉,骨折远端横钻孔穿入1.3mm钛丝形成＂8＂字张力带结构,术后早期开始功能锻炼。结果：14例患者术后（1～12个月）随诊,随诊6周时所有患者骨折均达到临床愈合标准,于平均3个月达到骨性愈合。随诊期间无螺钉、钛丝松动、断裂、骨折分离、感染及排斥反应等并发症的发生。结论：中空螺钉钛丝张力带内固定具有操作简便,固定牢靠,可以早期活动关节及疗效确切等优点,是一种治疗尺骨鹰嘴骨折的较好方法。     

Anterior transolecranon dislocation of the elbow in a child: A case report and review of literature

Anterior transolecranon dislocation of the elbow is rarely observed in children, reported in only a small series. The present case involves an anterior transolecranon dislocation of the left elbow joint in a 7-year-old child, which was surgically treated. Two attempts of closed reduction failed because the radial head had buttonholed via the joint capsule. After its release, open reduction was easily performed; osteosynthesis of the olecranon was not performed. Remarkably, good result was obtained, despite a mild flexion deformity at the last follow-up. This case report aims to highlight this treatment method, which may be considered for such an uncommon injury.     

成人肱骨远端骨折切开复位内固定术后异位骨化形成的影响因素

目的探讨成人肱骨远端骨折切开复位内固定术后异位骨化形成的影响因素。 方法2014年12月至2017年12月,对138例（139肘）成人肱骨远端骨折切开复位内固定术后患者进行回顾性分析。平均年龄（45.32±15.02）岁（18~69岁）;男56例,平均年龄（39.43±14.46）岁（18~69岁）;女82例,平均年龄（49.07±14.07）岁（18~69岁）。采用AO/OTA分型：B1型5肘;B2型6肘,鹰嘴截骨1肘;B3型48肘,鹰嘴截骨28肘;C1型12肘;C2型37肘,鹰嘴截骨21肘;C3型31肘,鹰嘴截骨31肘。应用X线片评估术后肘关节异位骨化形成情况,采用Mayo肘关节功能评分（Mayo elbow performance score,MEPS）、上肢功能评分表（disability of arm shoulder and hand,DASH）评估肘关节功能。对性别、年龄、损伤侧别、入院时空腹血糖、体重指数、骨折AO/OTA分型、手术中是否采用尺骨鹰嘴截骨及术后是否口服吲哚美辛等可能影响肘关节异位骨化形成的因素进行单因素及多因素Logistic回归分析。 结果术后获随访平均（14.26±3.83）个月（12~25个月）。术后切口均Ⅰ期愈合,无感染及愈合不良。肱骨远端骨折及尺骨鹰嘴截骨均愈合,无延迟愈合、不愈合及内固定物松动。末次随访时,肘关节平均屈伸活动度99.35°±28.72°（135° ~0°）,MEPS评分（91.71±9.36）分（60~100分）,DASH评分（6.71±8.25）分（2.88~41.66分）。末次随访时,1例患者前臂旋转轻度受限,旋前50°,旋后30°,其余患者前臂旋转功能均正常。单因素Logistic回归分析发现年龄（P=0.009）、空腹血糖（P=0.005）、尺骨鹰嘴截骨（P=0.016）、手术时间（P=0.016）、骨折分型（P=0.049）差异有统计学意义。C3型骨折较其他类型的异位骨化发生率更高（P=0.049）。受伤至手术时间≤6 d与>6 d的差异无统计学意义（P=0.058）。是否口服吲哚美辛差异无统计学意义（P=0.424）。多因素Logistic回归分析发现,是否尺骨鹰嘴截骨和空腹血糖差异有统计学意义（P=0.024,P=0.016）。 结论影响肱骨远端骨折切开复位内固定术后肘关节异位骨化形成的主要因素是尺骨鹰嘴截骨和空腹血糖,吲哚美辛不是主要的影响因素。复杂骨折的创伤更重,手术中常需要尺骨鹰嘴截骨以利于关节面骨折的解剖复位和内固定,异位骨化的发生率较高。     

尺骨鹰嘴解剖板治疗尺骨鹰嘴骨折

目的：探讨用尺骨鹰嘴解剖板治疗尺骨鹰嘴骨折的临床疗效。方法：对22例尺骨鹰嘴骨折采用尺骨鹰嘴解剖板进行切开复位内固定治疗,并对肘关节功能进行评价。结果：所有患者皆获得了随访,随访时间8～16个月（平均11个月）,根据Martin Weseley评分标准：优16例,良4例,中1例,差1例,优良率90．9％。结论：尺骨鹰嘴解剖板内固定治疗尺骨鹰嘴骨折具有手术操作简便、内固定牢固、可早期活动等优点。     

Surgical approaches for open reduction and internal fixation of intra-articular distal humerus fractures in adults: A systematic review and meta-analysis

BackgroundA number of surgical approaches have been described for open reduction and internal fixation (ORIF) of intra-articular distal humerus (IDH) fractures in adults. However, there is no consensus as to which approach is better in terms of functional outcomes and complications. The purpose of this study was to determine whether the functional outcomes and types and rates of complications are influenced by the choice of surgical approach for ORIF of IDH fractures (AO/OTA types 13 B & C).MethodsA systematic review of literature was performed using the PubMed, EMBASE and Cochrane Database of Systematic Reviews databases. Studies, both prospective and retrospective and comparative or non-comparative, dealing with surgical approaches for ORIF of IDH fractures in adult patients were included. Conference abstracts, studies looking primarily at the results of internal fixation rather than the surgical approach, those including extra-articular distal humeral fractures, pediatric distal humeral fractures (<18 years of age), delayed unions, non unions, malunions, cadaveric studies, pathological fractures and studies with <10 patients were excluded. Studies that looked at surgical modalities other than internal fixation (for e.g. total elbow arthroplasty) for intra-articular distal humerus fractures or those that did not report a validated functional outcome scoring system were also excluded.Results11 studies were included in the qualitative analysis, of which 5 were comparative studies and 6 were non-comparative. Quantitative analysis was performed on two sets of two studies, each set comparing the Bryan and Morrey or the triceps-split approach to the olecranon osteotomy approach, and revealed no significant differences in the Mayo Elbow Performance Score, range of motion and rates of complications. The overall methodological quality of the studies included in the review was low.ConclusionsHigh-quality evidence on surgical approaches for ORIF of IDH fractures in adults is lacking. Evidence from low-quality studies indicates that there is no difference in the functional outcomes or complication rates when comparing the Bryan and Morrey or triceps-split to the olecranon osteotomy approach. Future research in the form of high-quality randomized controlled trials is needed to determine which approach is superior in terms of functional outcomes and complications.