Consensus and different perspectives on treatment of supracondylar fractures of the humerus in children

Reliability of radiographic union score and correlation of clinical outcomes in children operated for supracondylar humerus fracture: A prospective study

Background

Supracondylar humerus fractures are common in childhood, and postoperative follow-up planning for surgically treated fractures is still controversial. This study aims to investigate the interobserver and intraobserver reliability of the Radiographic Union Score for Tibial Fracture in the postoperative radiological follow-up of pediatric supracondylar humerus fractures and to evaluate the clinical results with the scores obtained during follow-up.

Methods

In this prospective study, patients who were operated on for supracondylar humerus fractures were called for follow-up three times: postoperative splint removal, pin removal, and final control. A total of 58 patients, 34 boys and 24 girls, who provided regular follow-ups, were included in the study. During follow-ups, the Radiographic Union Score for Tibial Fracture was calculated by evaluating the patients' elbow anteroposterior and lateral radiographs, and the elbow joint range of motion was recorded with a goniometer. In two experiments, orthopedic surgeons evaluated intraobserver and interobserver reliability using the intraclass correlation coefficient at different times. The patients were evaluated at the last follow-up according to the Flynn criteria.

Results

The first follow-up Radiographic Union Score for Tibial Fracture (median (range) was 8 (7-10), the second follow-up was 11 (9-12), and the third follow-up was 12 (11-12). Range of motion was 40° at the first follow-up, 90° at the second follow-up, and 120° at the third follow-up. Radiographic Union Score for Tibial Fracture and range of motion increased significantly as the weeks progressed (p < 0.001). Interobserver intraclass correlation coefficient at first follow-up was 0.80 (95% confidence interval 0.69-0.87), second follow-up was 0.85 (0.77-0.91), and third follow-up was 0.79 (0.67-0.87). Intraobserver intraclass correlation coefficient was 0.92 (0.88-0.95) at the first follow-up, 0.93 (0.98-0.96) at the second follow-up, and 1.00 (1.00-1.00) at the third follow-up. Flynn score results are functional; the cosmetic results were excellent in 46 patients, good in 4 patients, fair in 5 patients, poor in 3 patients, and cosmetic results were excellent in 54 patients and good in 4 patients.

Conclusion

Our study determined that the radiographic union of fractures in pediatric supracondylar humerus fractures is reliably evaluated with the Radiographic Union Score for Tibial Fracture score. Radiographic Union Score for Tibial Fracture can be used to provide data-driven estimates of splint and pin removal.

Level of evidence

Level II, prospective study.

Pediatric orthopedic surgeons may perform better in terms of surgical outcomes in type 3 supracondylar humerus fractures: a comparative analysis

Supracondylar fractures of the humerus represent the most common surgical fractures in pediatric patients. There is a discourse regarding the influence of the surgeon training on treatment. Different studies show equivocal effect of subspecialty training. We conducted a single center case control study to evaluate the outcomes of type 3 fractures (fully displaced) comparing pediatric-trained orthopedic surgeons (PTOS) and non-pediatric trained orthopedic surgeons (NTOS). In this retrospective study, we investigated the surgical outcomes of type 3 supracondylar fractures of the humerus in children treated between the years 2012 and 2019, divided by surgeon type. During the research, a policy reform at our department was established and PTOS became the only surgeons for those injuries starting from September 2017. Patients' demographics, perioperative details, and postoperative course were recorded. Primary outcome was reoperations, and secondary outcomes were open reductions, infections, length of surgery, and neurological deficits. 1175 patients were diagnosed with supracondylar fractures at our Level I trauma center, and 346 cases were diagnosed with radiologically confirmed type 3. Overall, 312 cases were analyzed; 113 cases were diagnosed before 1 September 2017 and treated by NTOS, and 199 cases were treated by PTOS until 31 December 2019; 7.1% (8) of the patients treated by NTOS had to be reoperated compared to 1.5% (3) of the patients treated by PTOS ( P  = 0.014). There was significant difference looking at postsurgical complications and surgery length. This study's findings suggest that PTOS achieve superior outcomes when treating patients with type 3 supracondylar humerus fractures. Level of evidence: Level III.

A new technique of intramedullary elastic reduction of the "de-sharpened" Kirschner wire for the treatment of Gartland type III posterolateral displaced supracondylar fracture of the humerus in children

OBJECTIVE

To compare the clinical effects of intramedullary elastic reduction of the "de-sharpened Kirschner wire and traditional three-dimensional manipulation in the treatment of Gartland type III posterolateral supracondylar fracture of the humerus in children.

METHODS

A retrospective cohort analysis was made on 106 cases of Gartland type III posterolateral supracondylar fracture of the humerus treated in the Department of Orthopaedics of a Children's Hospital from March 2020 to March 2022. According to different surgical technology, the patients were divided into two groups: intramedullary elastic reduction of the de-sharpened Kirschner wire group (experimental group, n = 50) and traditional three-dimensional manipulation group (control group, n = 56). The surgical operating time, intraoperative fluoroscopy times, postoperative Baumann angle changes, postoperative elbow function Flynn score, and complications were collected and compared between the two groups.

RESULTS

All the enrolled cases underwent surgery successfully and were followed-up at least 6 months. The surgical operating time of the experimental group was 32.88 ± 3.69 min and that of the control group was 45.56 ± 10.13 min, and the difference was statistically significant (P < 0.05). The intraoperative fluoroscopy times were 20.62 ± 5.41 times in the experimental group and 32.48 ± 8.20 times in the control group (P < 0.05). The change of Baumann angle in the experimental group after operation was 2.3 ± 1.3 and that in the control group was 6.0 ± 2.1 (P < 0.5). Elbow joint Flynn scoring standard to evaluate the curative effect: the excellent and good rate was 98.00% (49/50) in the experimental group and 92.86% (52/56) in the control group (P > 0.5). There were no complications such as osteomyelitis, compartment syndrome, iatrogenic vascular and nerve injury, and myositis ossificans in either group.

CONCLUSIONS

Good functional outcome can be obtained with both intramedullary elastic reduction of the de-sharpened Kirschner wire and traditional three-dimensional manipulation for Gartland type III posterolateral displaced supracondylar fracture of the humerus in children; however, the former does not need repeated manipulation, and the operation time is shorter, the number of intraoperative fluoroscopy is less, and the recovery of the Baumann angle is better.

Increasing Value in Subspecialty Training: A Comparison of Variation in Surgical Complications for Pediatric Versus Other Fellowship-trained American Board of Orthopaedic Surgery Candidates in the Treatment of Supracondylar Fractures

INTRODUCTION

The effect of orthopaedic fellowship subspecialization on surgical complications for patients with supracondylar fracture is unknown. This study seeks to compare the effect of subspecialty training on supracondylar fracture complications.

METHODS

The American Board of Orthopaedic Surgery Part II Examination Case List database was reviewed for all supracondylar fractures from 1999 to 2016. Procedures were divided by fellowship subspecialty (trauma, pediatric, or other) and case volume and assessed by surgeon-reported surgical complications. Predictive factors of complications were analyzed using a binary multivariate logistic regression.

RESULTS

Of 10,961 supracondylar fractures identified, 53.47% were done by pediatric fellowship-trained surgeons. Pediatric-trained surgeons had fewer surgical complications compared with their trauma or other trained peers (4.54%, 5.67%, and 6.24%; P = 0.001). Treatment by pediatric-trained surgeons reduced surgical complications (OR = 0.79, 95% CI: 0.66 to 0.94; P = 0.010), whereas increased case volume (31+ cases) showed no significant effect (OR = 0.79, 95% CI: 0.62 to 1.02; P = 0.068). Patient sex, age, and year of procedure did not affect complication rates, while those treated in the Southeast region of the United States and those with a complex fracture type were at increased odds.

DISCUSSION

Treatment of supracondylar fractures by pediatric-trained surgeons demonstrates reduced surgeon-reported complications compared with their other fellowship-trained counterparts, whereas case volume does not. This suggests the value of fellowship training beyond pertinent surgical caseload among pediatric-trained surgeons and may lie in targeted education efforts.

The Effect of Fracture Patterns, Pinning Configuration, Surgeon Experience and Subspecialty on Short-Term Radiological Outcomes of Pediatric Supracondylar Humeral Fractures Treated in the Prone Position: A Case-Series

BACKGROUND

The most common treatment modality for supracondylar humerus fractures (SCHFs) in children is closed reduction and percutaneous pinning (CRPP). Nonetheless, debate persists regarding the optimal technique used. Therefore, the purpose of our study was to investigate the impact of surgeon experience, surgeon subspecialty and pin configuration on short-term radiological outcomes following CRPP of displaced SCHFs.

METHODS

Patients less than 14 years of age who underwent CRPP for displaced SCHFs in the prone position between January 2018 and December 2022 were analyzed. Patients were separated into subgroups based on fracture type (low vs. high sagittal), pin configuration (lateral, cross, other), number and configuration of K-wires and first operator surgical experience. The following outcome measurements were collected: postoperative Baumann angle (BA), Shaft-Condylar angle (SCA), surgical duration (SD), duration of radiation exposure (DRE) and number of clinical and radiological follow-ups (FU).

RESULTS

A total of 44 patients with a mean age of 6 ± 2.5 years were included in the final analysis. The mean post-operative BA and SCA were 74.8° ± 4.9° and 37.7° ± 10.2°, respectively. No significant differences were found in the post-operative Baumann's angle or SCA among the subgroups. Regarding secondary outcomes, no differences were found among each subgroup regarding SD, DRE and FUs.

CONCLUSION

Short-term radiological outcomes following the treatment of SCHFs treated in the prone position are not affected by fracture patterns and pinning configuration, regardless of the surgeon's years of experience or subspecialty.

Modified lateral approach combined with medial percutaneous approach versus triceps tongue-shaped flap approach and bilateral triceps brachii approach for pin fixation in treatment of irreducible displaced pediatric supracondylar humeral fractures

To evaluate the clinical outcomes of the modified lateral approach combined with the medial percutaneous approach (MLACMPA) versus the triceps tongue-shaped flap approach (TTSFA) and the bilateral triceps brachii approach (BTBA) in the treatment of irreducible displaced supracondylar humeral fractures (SHFs) in children. Between March 2000 and July 2022, a total of 135 children who underwent open reduction and Kirschner wire cross internal fixation for irreducible displaced SHFs caused by trauma were retrospectively analyzed. According to the surgical approach, the patients were assigned to the TTSFA group (n = 36), the BTBA group (n = 40) and the MLACMPA group (n = 59). The duration of surgery, intraoperative blood loss, incision length, and elbow range of motion were compared. The 3 groups were similar in terms of mean age, sex distribution, and time from injury to operation. The duration of surgery, intraoperative blood loss, incision length and postoperative elbow range of motion in the MLACMPA group were significantly superior to those in the TTSFA group and BTBA group (P < .05). Compared the use of the TTSFA or the BTBA, using the MLACMPA for pin fixation in the treatment of irreducible displaced pediatric SHFs could significantly shorten the duration of surgery, reduce the operation trauma, facilitate earlier functional exercise of joints after operation and yield better elbow function.

Current trends in the treatment of supracondylar fractures of the humerus in children: Results of a survey of the members of European Paediatric Orthopaedic Society

PURPOSE

The purpose of this study was to evaluate the current trends in the treatment of supracondylar humerus fractures as well as the preferred post-operative follow-up protocol among members of the European Paediatric Orthopaedic Society.

METHODS

The survey was composed by four main domains and 26 items: (1) surgeon information (3 items); (2) treatment (8 items); (3) post-operative treatment (3 items); and (4) factors influencing the outcome (12 items). All active members of European Paediatric Orthopaedic Society were invited by email to answer an electronic questionnaire.

RESULTS

The survey was submitted to 397 European Paediatric Orthopaedic Society active members; 184 members answered (46.3%) the questionnaire. Among respondents, 64.1% declared >10 years of experience and 55.4% declared to treat >20 supracondylar humerus fractures per year. Closed reduction, percutaneous pinning, and supine position were the preferred treatment option for Gartland type II and III supracondylar humerus fractures by 79.9%, 95.5%, and 84.8% of respondents, respectively. Supracondylar humerus fractures are treated within 24 h from trauma by 33.2% of respondents. Pins are removed 4 weeks from index procedure by 58.2% of respondents. Fracture type (72.3%), surgeon experience, and (71.2%) are of "crucial importance" for expected outcome of supracondylar humerus fractures treatment.

CONCLUSION

Surgeon experience, type of fracture, treatment modality, and pins configuration were considered the main factors potentially influencing the outcome of supracondylar humerus fractures. European Paediatric Orthopaedic Society members agreed on the treatment modality of Gartland type II and III supracondylar humerus fractures, patient positioning, and timing of hardware removal. Other important issues such as timing of surgery, pins configuration, surgical approach, and post-operative protocol are still debated.

LEVEL OF EVIDENCE

level II.

Gartland type III supracondylar fracture in children: is open reduction really a dangerous choice?

BACKGROUND

Type III supracondylar fractures represent a difficult injury to treat and there is no universal consensus regarding the best treatment. The purpose of this study is to assess the incidence of complication associated with open reduction and compare open reduction vs closed reduction, in order to determine which treatment lead to better clinical and radiological outcomes. Is open reduction really associated with a higher number of iatrogenic complication and worse clinical outcomes in comparison to closed reduction?

METHODS

A total of 55 patients, affected by type III supracondylar humerus fracture, were retrospectively selected and divided into two groups according to which type of treatment they received (open reduction or closed reduction). Major complications correlated with surgical procedure, such as infections, neurovascular iatrogenic lesions, elbow stiffness and painful scarring were assessed. The treatment outcomes and clinical features were compared among the two groups. A statistical analysis to find association between the type of reduction, the restored elbow anatomy and the clinical outcomes were performed. The follow-up varies between 1 year and 7 years.

RESULTS

No major complications occurred in our series of patients. Excellent and good outcomes were reported among all 26 patients that underwent an open reduction surgery and in 23 out of the 29 patients who received a closed reduction surgery. A higher number of patients in the open reduction group presented angles with normal values; moreover 3 out of the 6 patients with unsatisfactory outcomes presented with angles not in range, underlying the presence of a connection between the restored elbow anatomy and the clinical outcomes. There were no differences among the two groups regarding the presence of complications.

DISCUSSION

Open reduction should not be considered as a first line option of treatment in any pediatric patient with a type III supracondylar humerus fracture, but in several cases open surgery must be viewed as the choice with the best outcomes not only in presence of neurovascular lesion but also in case of irreducible fracture.

Supracondylar fractures in children: management and treatment

Supracondylar humeral fractures are widely considered the most common elbow fracture in children. Gartland classification plays a fundamental role in decision-making regarding management and prognosis. Recent literature recommends conservative management for non or minimally displaced fractures, whereas there seems to be a trend towards surgical treatment for all displaced fractures. The preferred treatment for displaced Gartland II and Gartland III fractures is closed reduction and percutaneous fixation with lateral pins. In particular patterns medial pin is recommended for obtain a stable construct. Neurovascular complications are mostly associated with Type III fractures and sometimes surgical exploration with fracture reduction is needed. Correct diagnosis and proper management protocol is mandatory for avoid early and late complications such as neurovascular impairment and malunion.

Lateral entry pins and Slongo's external fixation: which method is more ideal for older children with supracondylar humeral fractures?

Objective

The standard surgical treatment for supracondylar humeral fractures in children is closed reduction and percutaneous pinning. Given the need for greater fixation strength and higher risk of joint stiffness for children older than 8 years, external fixation is often performed for treating supracondylar humeral fractures in older children. The aim of this study was to compare the efficacy of lateral entry pins and Slongo’s external fixation for treating supracondylar humeral fractures in older children.

Methods

Children older than 8 years who underwent surgery for supracondylar humeral fractures at our hospital for surgery from January 2016 to December 2020 are to be retrospectively assessed. One group (n = 36) underwent internal fixation and percutaneous pinning with three lateral Kirschner wires, and the other group (n = 32) underwent Slongo’s external fixator surgery. The demographic data, operation duration, number of fluoroscopies, and fracture healing time were compared between both groups. The elbow joint function was evaluated 6 months after the surgery on the basis of fracture healing time, lifting angle, elbow joint range of motion (ROM), and Flynn score. The incidence of postoperative complications was also recorded.

Results

There was no significant difference between the two patient groups in terms of the demographic parameters. Compared to external fixation surgery, Kirschner wire surgery required shorter duration and fewer fluoroscopies (P < 0.05). Nevertheless, the fracture healing time was significantly less (P < 0.05), and the elbow ROM and Flynn scores were higher in the external fixator group compared to the Kirschner wire fixation group (P < 0.05). There was one case of secondary fracture displacement in the Kirschner wire group and one of pin tract infection in the external fixator group. No other iatrogenic injuries or complications were observed.

Conclusion

Maybe Slongo’s external fixator is a suitable alternative treatment option for supracondylar humeral fractures in children older than 8 years since it can achieve better fixation strength and early restoration of elbow joint movement with a lower risk of joint stiffness.

Supplementary Information

The online version contains supplementary material available at 10.1186/s13018-021-02541-z.

Does Surgeon Subspecialty Training Affect Outcomes in the Treatment of Displaced Supracondylar Humerus Fractures in Children?

INTRODUCTION

The effect of the treating surgeon's subspecialty training on the outcomes of managing displaced supracondylar humerus fractures in the pediatric cohort remains under debate. The objective of this study was to examine patient outcomes and treatment variables for these injuries based on the surgeon subspecialty training.

METHODS

A retrospective study of children who had undergone primary closed reduction and percutaneous fixation for displaced supracondylar humerus fractures was done from January 2012 through May 2019. The following four groups with differing orthopaedic subspecialty training were evaluated: (1) pediatric fellowship trained (2) trauma fellowship trained, (3) sports medicine fellowship trained, and (4) all others. Outcomes examined included time to surgery, surgical time, fluoroscopy usage, postoperative follow-up protocols, radiographic measurements of alignment, and complications between surgeon groups.

RESULTS

Two hundred thirty-one cases were included (mean age 6 ± 2 years). Pediatric fellowship-trained surgeons took patients to surgery in a more delayed fashion (>12 hours, P = 0.02). Surgical time and fluoroscopy usage were significantly shorter for pediatric fellowship-trained surgeons (P < 0.001). No statistical difference was noted in pin configuration constructs between the groups. Pediatric fellowship-trained surgeons, on average, saw patients two times postoperatively within a year with most patients being within 30 days. Complications were not statistically different between the groups.

CONCLUSIONS

Pediatric fellowship-trained orthopaedic surgeons provide more efficient care on a more delayed basis for displaced supracondylar humerus fractures than other subspecialty-trained orthopaedic surgeons. However, if barriers exist that limit the practicality or availability of these specialists, nonpediatric fellowship-trained surgeons achieve similar and satisfactory outcomes.

LEVEL OF EVIDENCE

Level III retrospective cohort study.

Crossed versus lateral K-wire fixation of supracondylar fractures of the humerus in children: a meta-analysis of randomized controlled trials

BACKGROUND

Supracondylar fractures of the humerus are common in children. Whether fixation should be performed with crossed or lateral wires remains controversial. We performed a meta-analysis of randomized controlled trials to evaluate both techniques in terms of the function of the elbow and the risk of neurologic injury and loss of reduction. We also assessed the quality of the evidence currently available.

METHODS

The MEDLINE, Embase, Cochrane Library, and LILACS (Latin American and Caribbean Health Sciences Literature) databases, as well as ongoing clinical trial databases, were searched until March 2020. The main outcomes were function, measured by the Flynn criteria, and complications (neurologic lesions and loss of reduction). A meta-analysis was conducted using relative risk (RR) analysis for dichotomous variables and difference in means for continuous variables. Heterogeneity was tested using the I² statistic.

RESULTS

Twelve trials, with a total of 930 patients, met the inclusion criteria. Both groups (crossed-wire and lateral-wire fixation) presented satisfactory functional results, with no difference between them (RR, 0.99; 95% confidence interval [CI], 0.96-1.02; P = .44). Patients undergoing crossed-wire fixation had a higher risk of iatrogenic neurologic injury (RR, 0.45; 95% CI, 0.21-0.99; P = .05). The crossed group showed greater fixation stability, with a lower incidence of loss of fracture reduction (RR, 1.39; 95% CI, 1.04-1.85; P = .03). The GRADEpro GDT (Guideline Development Tool) showed that the quality of evidence of the evaluated outcomes was low or very low.

CONCLUSION

There is evidence of very low quality that fixation with lateral wires is safer regarding iatrogenic nerve lesions whereas fixation with crossed wires is more effective at maintaining fracture reduction.

Surgical Trends in the Treatment of Supracondylar Humerus Fractures in Early Career Practice: An American Board of Orthopaedic Surgery (ABOS) Part-II Database Study

BACKGROUND

Pediatric supracondylar humerus fractures are the most common elbow injury in children, accounting for 12% to 17% of all childhood fractures. A lack of information exists regarding complication rates on the basis of fellowship status and geography.

METHODS

The American Board of Orthopaedic Surgery (ABOS) Part-II database was used to identify candidates who performed either percutaneous or open treatment of humeral supracondylar or transcondylar fractures between 2002 and 2016 on patients aged 0 to 12 years. Candidates were categorized by fellowship training experience. Information analyzed included fellowship status, surgical procedure, complications, and geographic location of treatment. Data were analyzed utilizing the χ and Fischer exact tests and were considered significant if P≤0.05.

RESULTS

A total of 9169 cases (mean, 5.36+2.27 y; range, 0 to 12) were identified between 2002 and 2016, 8615 of which were treated with closed reduction and percutaneous pinning, whereas 554 were treated with an open procedure. The 5 most common fellowships treating these fractures were listed as pediatrics (4106), sports medicine (1004), none (912), trauma (732), and hand/upper extremity (543). Pediatrics performed the highest number of open reduction and internal fixation (ORIF), however, reported the statistically lowest percentage of ORIF. A statistically significant difference was identified between surgical complication rates and fellowship specialties, with pediatrics having the lowest complication rate (7.0%), followed by no fellowship (8.2%), trauma (9.0%), sports medicine (9.8%), and hand/upper extremity (11.2%) (P<0.001). This significant difference was also present when analyzing closed reduction and percutaneous pinning alone (P=0.002), however, not with the analysis of ORIF.

CONCLUSIONS

Early career pediatric fellowship-trained orthopaedic surgeons are more likely to treat pediatric supracondylar humerus fractures. Overall, although they treat more patients with ORIF than any other group, their percentage treated with ORIF is statistically the lowest. A significant difference in reported complication rates was found to be associated with specific fellowship training, with pediatric fellowship-trained surgeons having the fewest complications and foot/ankle fellowship-trained surgeons associated with the highest rate of reported surgical complications.

LEVEL OF EVIDENCE

Level III-retrospective cohort study.

Comparison of Three Different Approaches in Pediatric Gartland Type 3 Supracondylar Humerus Fractures Treated With Cross-Pinning

Introduction

Although closed reduction and percutaneous pinning are the accepted treatment approaches in pediatric humerus supracondylar fractures, the treatment approach in fractures without closed reduction remains unclear. This study compared the results of three different cross-pinning treatment methods.

Materials and methods

A total of 62 patients (1-13 years old) who were operated for Gartland type 3 humerus supracondylar fractures between 2007 and 2016 were evaluated retrospectively. Of the patients evaluated, 24 patients had closed reduction, 25 patients had direct reduction from the medial, and 13 patients had direct reduction from the lateral and cross-pinning. The functional and cosmetic results of the patients were evaluated according to Flynn's criteria. In addition, the Baumann angle, lateral capitellohumeral angle (LCHA), and postoperative complications were compared among groups.

Results

Both functional and cosmetic results and the Bauman and LCHA angles were similar in all three groups. In patients with open reduction, the control duration was significantly longer than that in patients with closed reduction, and this difference was due to a recent increase in the surgeons' preference for closed surgery. Two patients underwent pin site infection and two patients developed nerve palsy. Only the first patient who developed ulnar nerve palsy recovered during follow-up. Secondary surgery was applied to the other patient who developed brachial artery occlusion with ulnar and median nerve paralysis, and they recovered during follow-up. Three patients who underwent open surgery from the medial, along with the two patients who had undergone open surgery, developed pinhole infection. These patients were subsequently recovered with antibiotherapy without further complications. A patient who underwent open lateral surgery developed compartment syndrome and fasciotomy was performed.

Conclusion

Closed reduction and percutaneous pinning are generally accepted approaches in the treatment of pediatric humerus supracondylar type 3 fractures. However, in cases where closed reduction cannot be achieved, pinning with the medial approach and taking the ulnar nerve and medial colon is a reliable method to avoid both ulnar nerve injury and cubitus varus.

Surgical management of delayed Gartland type III supracondylar humeral fractures in children: A retrospective comparison of radial external fixator and crossed pinning

Radial external fixator has been proposed to treat delayed irreducible Gartland type III supracondylar humeral fracture, and this study aims to compare its effects with crossed pinning in a retrospective fashion. Delayed supracondylar humeral fracture is defined as more than 72 hours after injury, 2 or more than 2 times failed attempts of closed reduction can be deemed as irreducible fracture.Between January 2010 and January 2017, patients of Gartland type III supracondylar fractures of the humerus receiving surgery were all selected and reviewed. Overall, 39 patients fitting the inclusion criteria were chosen for the External Fixator Group and patients for control group of crossed pinning with matched age, sex, and clinical parameters (fracture location, injured side, and fracture type) were selected from the database. Surgery duration, number of intraoperative X-ray images, incidence of ulnar nerve injury, postoperative redisplacement, and function of the elbow joint were recorded and analyzed.In this study, 39 patients treated with radial external fixator had significantly shorter surgery duration, fewer intraoperative X-ray images, and lower incidence of ulnar nerve injury, and postoperative redisplacement than those receiving crossed pinning. Patients in 2 groups displayed similar range of motion for elbow joint at follow-up.Radial external fixator is an effective and safe method to treat Gartland type III supracondylar fractures that were diagnosed late.

Surgical treatment of pediatric supracondylar humerus fracture could be safely performed by general orthopedists

PURPOSE

Displaced pediatric supracondylar humerus fracture (SCHF) requires a reduction and instrumentation. The trend is to send the cases to a fellowship-trained pediatric orthopedist. This study reviewed the outcomes and complications of SCHF surgically managed by orthopedic surgeons with different backgrounds of subspecialty training.

METHODS

The medical records of 87 children (87 elbows) with an average age of 5.9 ± 3.1 (range 1.3-14.1) years with SCHF Gartland 2 and 3 who underwent operative fixation were reviewed. The demographics data and operative details were obtained. Radiographically, the Baumann and humerocapitella angles were measured. The lateral rotational percentage of Gordon was calculated. The Griffet index 1 and 2 were retrieved. The parameters were compared among groups of surgeons with a pediatric fellowship-trained background and surgeons with other subspecialty training. A univariate analysis was calculated for the risk of postoperative complications.

RESULTS

The demographics data were comparable between the two groups. Children who were treated by non-pediatric fellowship-trained orthopedists showed higher but not significant degrees of postoperative Baumann angles; however, the proportion of children with an acceptable range of Baumann angle were similar. The overall complications rate was 17.5% and comparable between the two groups. Only SCHF Gartland 3 was associated with complications (P = 0.01).

CONCLUSIONS

Pediatric SCHF could be efficiently managed by a general orthopedic surgeon because the radiographic outcomes and complications were comparable to pediatric fellowship-trained orthopedists. Extra precautions need to be exercised in SCHF Gartland type 3 because the chance of complications is higher among these types of injuries.

LEVEL OF EVIDENCE

Level III.

Results of crossed versus lateral entry K-wire fixation of displaced pediatric supracondylar humeral fractures: A systematic review and meta-analysis

PURPOSE

Supracondylar humeral fractures (SCHF) are among the most common injuries in children. The aim of this systematic review was to investigate functional and radiographic outcome after crossed and lateral K-wire fixation for displaced extension-type SCHF, and complications related to the type of K-wire construction used.

METHODS

RCTs and prospective comparative cohorts on the functional outcome and complications after fracture reduction and K-wire fixation were identified in MEDLINE, Embase, Web of Science and the Cochrane Library.

RESULTS

Thirteen studies were identified, including 1158 patients in seven RCTs and six prospective comparative cohorts. According to the Flynn criteria, there was no difference in outcome between the K-wire configurations (Relative Risk 1.07). Loss of reduction occurred in 27 (11.6%) of 232 patients treated with crossed K-wires, and in 35 (12.4%) of 282 patients treated with lateral entry K-wires. Twenty (4.1%) of 493 patients in the crossed group were diagnosed with iatrogenic ulnar nerve injury, compared with 2 (0.3%) of 666 patients in the lateral entry group. The overall incidence of persistent ulnar nerve related complaints was 3.5/1000.

CONCLUSIONS

Crossed and lateral entry pin fixation of SCHF result in similar construct stability and functional outcome. Although ulnar nerve injury was three times more likely in the crossed K-wire group, the overall incidence of this complication was very low. The available evidence does not support the use of either approach for daily practice. If the surgeon wishes to avoid all potential risk of iatrogenic ulnar nerve injury, the lateral K-wire approach is safest.

A prospective randomised non-blinded comparison of conventional and Dorgan's crossed pins for paediatric supracondylar humeral fractures

BACKGROUND

Closed reduction and percutaneous pinning are the preferred treatment of displaced supracondylar humeral fractures in children. The purpose of this study is to evaluate the non-standard Dorgan's method and compare its results with those of the standard percutaneous cross pinning method in treatment of unstable or irreducible Gartland type II and III supracondylar humeral fractures in children.

PATIENTS AND METHODS

This was a prospective evaluation of 138 consecutive patients with Gartland type II or III extension supracondylar humeral fractures referred to University Children's Hospital during a four-year period. The patients were randomized into two groups: the first group, comprised of 71 patients, was treated with standard pin configuration and the second group, comprised of 67 patients, underwent Dorgan's method. The study included 88 boys and 50 girls aged 1.5-11.4 years (mean 6.5±2). At initial presentation 8.7% (n-12) fractures were classified as Gartland type IIa, 25.4% (n-35) as Gartland type IIb and 65.9% (n-91) as Gartland type III.

RESULTS

Flynn's criteria were used to evaluate the results. An excellent clinical outcome was reported in about 90% of patients (n-90) treated with standard pin configuration and 89.5% (n-60) of patients treated with Dorgan's method. There were no statistically significant differences in outcomes between the groups in terms of their gender, age, fracture types, function and cosmetics. Neurological lesions were observed in 9.9% of patients (n=7) who were treated using the standard configuration Kirschner pins, while in those treated by Dorgan's method neurological complications were not observed. However, the procedure time was longer (mean 36.54±5.65min) and radiation exposure significantly higher (mean 10.19±2.70 exposures) in the group that was treated using Dorgan's method, compared to the conventional method (mean 28.66±3.76min and 7.54±1.63 exposures).

CONCLUSION

Two laterally inserted crossed pins provide adequate stability with good functional and cosmetic outcome for most unstable paediatric supracondylar humeral fractures with no risk of iatrogenic ulnar nerve injury.

Surgical Treatment of Displaced Supracondylar Pediatric Humerus Fractures: Comparison of Two Pinning Techniques

The aim of this study is to report the results of the treatment of displaced supracondylar humerus fractures comparing two different techniques, crossed and lateral pins. We retrospectively reviewed 35 children hospitalized between May 2005 and December 2012. Patients were treated with two different pin configurations, crossed (Group 1) and lateral (Group 2). After surgery, clinical and radiographic evaluation was performed. Postoperatively, the clinical assessment showed recovery of joint function of the elbow. Radiographically, Group 1 showed a difference in the Baumann angle between the value of the injured limb and the normal angle of 5.3° ± 2.12°; in Group 2 the difference was 4.9° ± 2.82°. Complications: group 1, two cases of short paresthesia, one case of slight varus, mild asymmetry, and deficit to extension of the humerus and group 2, two cases of local infection and one of a slight hyperextension were reported. Both groups achieved a satisfying outcome with similar results in joint function recovery and complications.

Stiffness of various pin configurations for pediatric supracondylar humeral fracture: a systematic review on biomechanical studies

To compare the biomechanical stability of various pin configurations for pediatric supracondylar humeral fractures under varus, internal rotation, and extension conditions. After electronic retrieval, 11 biomechanical studies were included. Stiffness values of pin configurations under different loading conditions were extracted and pooled. There were no statistically significant differences between two cross pins and two divergent lateral pins on the basis of the 'Hamdi method' (P=0.249-0.737). An additional pin did not strengthen two-pin construct (P=0.124-0.367), but better stabilized fractures with medial comminution (P<0.01). Isolated lateral pins are preferable because of a better balance of a lower risk of nerve injury and comparable fixation strength. Limitations such as differences in experimental setup among recruited studies and small sample size may compromise the methodologic power of this study.

The displaced supracondylar humerus fracture: indications for surgery and surgical options: a 2014 update

PURPOSE OF REVIEW

Supracondylar humerus fractures are the most common elbow fractures in children. Choice of treatment may be guided by the Gartland classification. Recent studies recommend conservative management for non or minimally displaced fractures, whereas there seems to be a trend towards surgical intervention for all displaced fractures. The purpose of this review is to discuss the various treatment options for displaced supracondylar humerus fractures.

RECENT FINDINGS

Closed reduction and percutaneous pinning are the preferred treatment options for most displaced pediatric supracondylar fractures of the humerus. The ideal pin configuration has always been subject to great controversy. It is well known that placement of a medial pin carries the risk of iatrogenic ulnar nerve injury, whereas lateral pinning carries an increased risk of median neuropathy. Therefore, given the potential risk, it is recommended to avoid medial pinning to prevent damage to the ulnar nerve and stabilize the fracture with two or three lateral pins.

SUMMARY

Today, the preferred treatment of displaced supracondylar humerus fractures in children is immediate closed reduction and percutaneous fixation with two or three lateral pins. In case of instability of the medial column, a medial pin may be used, but possibility of iatrogenic ulnar nerve injury should be considered.

Is lateral pin fixation for displaced supracondylar fractures of the humerus better than crossed pins in children?

BACKGROUND

Closed reduction and percutaneous pin fixation is considered standard management for displaced supracondylar fractures of the humerus in children. However, controversy exists regarding whether to use an isolated lateral entry or a crossed medial and lateral pinning technique.

QUESTIONS/PURPOSES

We performed a meta-analysis of randomized controlled trials (RCTs) to compare (1) the risk of iatrogenic ulnar nerve injury caused by pin fixation, (2) the quality of fracture reduction in terms of the radiographic outcomes, and (3) function in terms of criteria of Flynn et al. and elbow ROM, and other surgical complications caused by pin fixation.

METHODS

We searched PubMed, Embase, the Cochrane Library, and other unpublished studies without language restriction. Seven RCTs involving 521 patients were included. Two authors independently assessed the methodologic quality of the included studies with use of the Detsky score. The median Detsky quality score of the included trials was 15.7 points. Dichotomous variables were presented as risk ratios (RRs) or risk difference with 95% confidence intervals (CIs) and continuous data were measured as mean differences with 95% CI. Statistical heterogeneity between studies was formally tested with standard chi-square test and I(2) statistic. For the primary objective, a funnel plot of the primary end point and Egger's test were performed to detect publication bias.

RESULTS

The pooled RR suggested that iatrogenic ulnar nerve injury was higher with the crossed pinning technique than with the lateral entry technique (RR, 0.30; 95% CI, 0.10-0.89). No publication bias was further detected. There were no statistical differences in radiographic outcomes, function, and other surgical complications. No significant heterogeneity was found in these pooled results.

CONCLUSIONS

We conclude that the crossed pinning fixation is more at risk for iatrogenic ulnar nerve injury than the lateral pinning technique. Therefore, we recommend the lateral pinning technique for supracondylar fractures of the humerus in children.