Intramedullary nailing without interlocking screws for femoral and tibial shaft fractures

Background

Intramedullary fixation is the treatment of choice for diaphyseal fractures of the femur and tibia. Locking the implant can sometimes be cumbersome and time consuming. In our institution, fractures with axial and rotational stability are treated with intramedullary nailing without interlocking.

Methods

All consecutive patients presented in the University Medical Center Utrecht from October 2003 to August 2009 with acute traumatic diaphyseal fractures of the tibia or femur that were considered axial and rotational stable were included. They underwent internal fixation using intramedullary nails without interlocking. Patient records were evaluated for duration of surgery, perioperative complications, consolidation time and re-operations.

Results

Twenty-nine long bone fractures were treated in 27 patients: 20 men and 7 women, with an average age of 28.9 years (range 15.6–54.4). There were 12 femoral fractures and 17 tibial fractures. Sixteen fractures were closed and 13 were open (10 Gustilo 1, 3 Gustilo 2). The mean operating time was 43 min (range 18–68 min) for tibial fractures and 55 min (range 47–150 min) for femoral fractures. Postoperative complications occurred in six patients. Two patients (three fractures) were lost to follow-up. Healing occurred in 25 of the 26 remaining fractures (96 %) without additional interventions. One tibia was secondarily converted to a standard locked nail because of axial and rotational instability. All patients returned to their pre-injury level of activity.

Conclusion

The use of intramedullary nailing without interlocking is associated with minimal complications in selected fractures. The advantages include a short operating time and the simplicity of its application.     

Which treatment option for paediatric femoral fractures in school-aged children: elastic nail or spica casting?

Objective

Titanium elastic nails and immediate spica casts are treatment options for femoral fractures in school-aged children (6–12 years). This study aimed to compare the results of elastic nail and immediate spica cast methods for treating femoral fractures in school-aged children.

Materials and methods

A retrospective evaluation was made of patients who underwent immediate spica cast (20 patients) or titanium elastic nail (22 patients) for femoral fracture. Groups were compared in terms of clinical and radiographic union, duration of hospitalisation, range of knee motion, walking independently and complications. The mean age was 9.8 ± 1.3 years for the elastic nail group and 6.4 ± 1 for the cast group. The mean follow-up period was 12.6 ± 5.2 months for the elastic nail group and 14.3 ± 6 months for the cast group.

Results

All fractures in both group were healed. Duration of hospitalisation was shorter (2.2/7.1) and range of knee motion was better (132°/129°) in the cast group. The duration for independent walking was shorter (49.2/79.8) in the nail group. These differences were significant (p < 0.001). Two superficial infections and two malalignment were detected in the nail group. Three superficial infections and four malalignment were detected in the cast group.

Conclusion

We detected that both treatment options were similar with regard to complications and results. Although the complications are similar in two treatment methods, complications of elastic nail are more challenging and may require new surgical procedure. If the elastic nail is selected, surgical complications should not be underestimated.     

Die kombinierte Humerusschaft- und proximale Gelenkfraktur

Introduction and question

Intramedullary nailing is finding increasing acceptance for humeral shaft fractures. Recently, nailing systems have also been used for proximal metaphyseal humeral fractures. Which possibilities and clinical results are offered by intramedullary nailing of combined proximal and diaphyseal fractures of the humerus with titanium locking nails?

Materials and methods

A prospective study with a standardized protocol was carried out with respect to the “unreamed humeral nail (UHN) with spiral blade” and its possible complications and clinical results between 1^st October 2000 and 31^st December 2005. There were 87 combined shaft and proximal humeral fractures in 28 male and 59 female patients with a median age of 69 years. Results were analyzed 1 year postoperatively in 72 patients according to the Constant-Murley score and x-rays.

Results

Significant complications were bolt or spiral blade perforation of the articular surface (n=3), implant-related pain (n=2), fragment dislocation (n=1), non-union (n=1), humeral head necrosis (n=1) but no wound infection (n=0). The Constant-Murley score showed a median value of 71.2 for the injured side compared to 88.4 for the non-injured side, 1 year after the operation.

Discussion

The combination of diaphyseal and proximal-metaphyseal humeral fractures is a special challenge for the orthopaedic trauma surgeon, as even now the treatment of isolated proximal humeral fractures is not satisfactorily resolved in all cases. Open treatment such as plate osteosynthesis in general needs a long and invasive approach with corresponding biological disadvantages. Low invasive approaches for plates also have high risks on the humerus due to the specific neurovascular topography. In our study closed nailing showed good clinical and radiological results with low invasive approaches and complications mostly occurred in C-type fractures. If the use of additional cerclage wires for the diaphyseal component in nailing is deemed necessary, the biological benefits over plate osteosynthesis become less clear.     

Elastic stable intramedullary nailing (ESIN) in the adolescent patient—perils,pearls, and pitfalls

Purpose

Elastic stable intramedullary nailing (ESIN) has become the treatment of choice for diaphyseal long-bone fractures in children. This paper reviews the complications and limitations of this method which can occur when applying this osteosynthesis to patients within the adolescent age group.

Methods

Each topographic site where ESIN is used was analyzed individually and systematically. Technical errors, indicational problems, and mistakes during the rehabilitation process are pointed out and recommendations are given on how to avoid failure.

Results

ESIN can be safe and efficacious within certain limits also in the adolescent age group. Whenever errors and mistakes occur in combination, e.g., applying ESIN to a patient with a multi-fragmented fracture and a high body mass index (BMI), the adolescent age group is less forgiving to indicational “stretching” than the pediatric age group.

Conclusions

The best prophylaxis for failure of ESIN is a stable and symmetric construct with correctly sized implants. This holds even more true for the adolescent patient. Using ESIN in difficult situations such as longitudinally unstable fractures, patients with a body weight >50 kg, or away from the diaphysis should be considered and followed up carefully. If possible, these patients should be treated in specialized pediatric trauma centers.     

Outcome of elastic nailing of diaphyseal forearm fractures in adolescents after failure of conservative management

Purpose

This is a prospective study to evaluate the efficacy of elastic nails for the treatment of diaphyseal forearm fractures after failure of conservative management.

Method

In 35 patients with a mean age of 15.3 years (14–17 years), elastic nails were used for the treatment of diaphyseal forearm fractures after failure of conservative management. In 32 patients (91.4%), we performed closed reduction. In the remaining 3 (8.6%), closed reduction failed and an open reduction, through a minimal approach, was required before nailing.

Results

After a mean follow-up of 31 months (range 24–48 months), 20 (60%) patients had an excellent result 10 (34.3%) patients had a good result, and two (5.7%) patients had fair result. The mean time of union was 12 weeks (range 8–15). The mean time in cast was 8.5 weeks (range 7–11). Full range of elbow movement was regained in all cases; however, supination and pronation were limited in two patients. One patient had a superficial infection at the site of entry of the ulnar nail which was successfully treated with oral antibiotics and daily dressing. Neurapraxia affecting superficial branch of the radial nerve in one patient was resolved over a period of time. One case with partial rupture of extensor pollicus longus tendon was reported. There was one case of delayed union. No cases of refracture were reported after removal of the implant.

Conclusion

In adolescents, intramedullary fixation by using elastic nail plus cast immobilization provides effective treatment for diaphyseal forearm fracture when closed management has failed. However, it is of special importance to follow the right indication and to pay attention to correct technical procedure.     

Complications of plate fixation of femoral shaft fractures in children and adolescents

Purpose

This study aims to critically analyze the major and minor complications that may be associated with plate fixation of pediatric diaphyseal femur fractures.

Methods

The medical records of skeletally immature patients (6–15 years of age) who underwent plate fixation of a diaphyseal femur fracture at a tertiary-care level-1 pediatric trauma center between 1/2003 and 12/2010 were reviewed. Demographic and clinical information regarding the mechanism of injury, fracture type, and surgical technique were recorded. Radiographic evaluation of bony healing, hardware position, and deformity was performed throughout the study period. All intraoperative and postoperative complications were recorded. Complication incidence and time from surgery to complication were described. Multivariate logistic regression and multivariate Cox regression models were used to assess the association between different variables and the occurrence of a complication. Kaplan–Meier survivorship curves were used to evaluate the freedom from a complication with longer follow-up.

Results

Over an 8-year period, 85 skeletally immature patients (83 % males, mean age 10.2 years) underwent plate fixation for diaphyseal femur fractures. Overall, complications were identified in 11 patients (13 %). Major complications, defined as those resulting in unplanned reoperation (excluding elective removal of asymptomatic plate/screws), occurred in five patients (6 %) and included two patients (2 %) with wound infections requiring irrigation and debridement, two patients (2 %) with distal femoral valgus deformity (DFVD) leading to osteotomy and hardware removal, respectively, and one patient (1 %) with a 3-cm leg length discrepancy (LLD) requiring epiphysiodesis. Minor complications, defined as those not requiring unplanned operative intervention, occurred in six patients (7 %) and included two patients (2 %) with delayed union, two patients (2 %) with symptomatic screw prominence, one patient (1 %) with a superficial wound infection effectively treated with oral antibiotics, and one patient (1 %) with valgus malunion, which was asymptomatic at early follow-up. There were no intraoperative complications and no reports of postoperative knee stiffness, shortening, or reoperations to address fracture stability. Fifty-two patients (61 %) underwent routine elective removal of hardware without related complications following fracture union. Overall, complications occurred postoperatively at a mean time of 20 months (range 0–65 months), though major complications occurred at a later time point (mean 29.1 months, range 0–65 months) than minor complications (mean 12.5 months, range 0–40.1 months). Longer follow-up was associated with higher occurrence of a complication [p = 0.0012, odds ratio = 1.05, 95 % confidence interval (CI): 1.02–1.08].

Conclusions

The plating of pediatric femur fractures is associated with 6 and 7 % rates of major and minor complications, respectively. There were minimal long-term sequelae associated with the complications noted. This complication rate compares favorably with the published rate of complications (10–62 %) associated with titanium elastic nail fixation of similar fracture types. Most complications occurred >4 months postoperatively, with major complications occurring at a later time point than minor complications. Long-term follow-up of these patients is recommended to ensure that complications do not go undetected.

Level of evidence

Retrospective case series, Level IV.     

Cemented bipolar hemiarthroplasty with a cerclage cable technique for unstable intertrochanteric hip fractures in elderly patients

Aim

The purpose of this study is to evaluate the clinical and radiological outcomes of cemented bipolar arthroplasty as a primary treatment for unstable intertrochanteric fracture in the elderly patients.

Methods

Twenty hips with unstable intertrochanteric fractures were followed for more than 2 years after cemented bipolar hemiarthroplasty. The mean age was 69 years, and the mean follow-up period was 30.5 months. We evaluated the results by Harris hip score, complications, and radiologic findings.

Results

At the last follow-up, the mean Harris hip score was 83.3 points. Radiologically, there was no case of osteolysis. All stems were stable without significant changes in alignment or progressive subsidence.

Conclusions

Bipolar hemiarthroplasty with calcar reconstruction is a good option for unstable intertrochanteric fractures in elderly patients with severe osteoporosis with strict indication selection. Longer-term studies with larger numbers of patients are required to address the issues of late complications.     

Results of fusion and instrumentation of thoracic and lumbar vertebral fractures in children: a prospective ten-year study

Background

Researches on the results of surgical treatment of thoracolumbar spine fractures are infrequent. The aim of this study was to determine midterm outcomes of surgical treatment of these fractures in a prospective survey.

Methods

A case series study on pediatric patients with the diagnosis of thoracic and/or lumbar vertebral fractures was conducted over a ten-year period. Surgically treated patients were evaluated in the follow-up period, based on back pain, independent function, neurological status, and radiographic indices.

Results

There were 102 pediatric individuals, 61 boys and 41 girls, aged 3–17 years (mean 12 years of age) with thoracic and/or lumbar spinal fractures. Motor vehicle accident was the most common mechanism of injury (45.0 %). L1 was the most frequent level of fractured vertebra (24.4 %), and pelvic fracture was the most common associated orthopedic injury (21.5 %). Totally, 20 patients underwent surgery, but only fifteen (14 boys and one girl) participated in follow-up (mean 49 months; range 12–81 months). Posterior spinal fusion and instrumentation was accomplished in 12 cases. Three patients were operated by anterior approach and fusion followed by posterior fusion and instrumentation because of delay in diagnosis. There were no major perioperative complications. Two cauda equina syndromes and two incomplete spinal cord injuries improved back to normal. Five cases (33.3 %) reported occasional back pain, and all patients were functionally independent. Radiographic indices improved significantly.

Conclusions

Spinal fusion and instrumentation in pediatric patients with unstable thoracolumbar vertebral fractures with or without spinal cord injuries have favorable radiographic and functional outcomes.     

Erfahrungen mit einem helikalen Femurmarknagel (LFN®)

Introduction

Antegrade intramedullary nailing is the method of choice in most femoral shaft fractures. The trochanteric entry portal of classic femoral nails is in close proximity to the piriformis tendon, the gluteus minimus tendon, the obturator tendons, and the medial femoral circumflex artery. Nail insertion lateral to the tip of the greater trochanter may be more favorable but needs the use of a helical implant.

Material and methods

Measurement of the reamer pathway through an entry point lateral to the superior trochanteric border was performed with a three-dimensional motion tracking sensor in human cadaveric femurs. These results provided a scientific rationale for the design of a helical femoral nail (LFN®). In a prospective multicenter study a total of 227 femoral shaft fractures were treated by nailing with the LFN. Patients were followed at 3 months (n=193) and 12 months (n=167).

Results

The ease of defining the entry point and inserting the nail was rated as“very good and good” by 90% of the surgeons. Intraoperative technical complications included incomplete reduction (14%), additional iatrogenic fractures (6%), and difficulties in interlocking (3.5%). At the 1-year follow-up, delayed unions were seen in 10%, secondary loss of reduction in 3%, and deep infection in 1.8% of the patients. Angular malalignment of more than 5° was seen in 5%, mostly in valgus. A normal walking capacity was seen in 68% and normal active hip flexion in 45%.

Conclusion

The results obtained in this study during 1 year do not provide evidence for an advantage of the LFN over conventional antegrade femoral nails.     

Single-bone intramedullary fixation of unstable both-bone diaphyseal forearm fractures in children leads to increased re-displacement: a multicentre randomised controlled trial

Introduction

Both-bone diaphyseal forearm fractures in children can be stabilised without cast by a flexible intramedullary nail in both the radius and the ulna. Adequate results with single-bone fixation combined with a complementary cast are also reported. However, because those results are based on a selection of children, this trial investigates whether single-bone intramedullary fixation, compared with both-bone intramedullary fixation, results in similar pronation and supination in children with an unstable diaphyseal both-bone forearm fracture.

Materials and methods

In four Dutch hospitals, 24 consecutive children aged <16 years with a displaced unstable both-bone diaphyseal forearm fracture were randomly allocated to single-bone or both-bone intramedullary fixation. Primary outcome was limitation of pronation and supination 9 months after initial trauma. Secondary outcomes were limitation of flexion/extension of wrist/elbow, complication rate, operation time, cosmetics of the fractured arm, complaints in daily life, and assessment of radiographs.

Results

Between January 2006 and August 2010, 11 children were randomised to single-bone fixation and 13 to both-bone fixation. In the both-bone fixation group, two fractures were stabilized by only one nail. In both groups, median limitation of pronation/supination at 9-month follow-up was 5°–10°. In both groups operation time was similar but in the single-bone fixation group cast immobilisation was longer (median of 37 vs. 28 days). In four children, re-displacement of the fracture occurred in those fractures without an intramedullary nail.

Conclusions

These results caution against the use of single-bone fixation in all both-bone forearm fractures. This method may lead to increased re-displacement and reduced clinical results.     

Intraoperative panoramic image using alignment grid, is it accurate?

Background

Minimally invasive orthopedic trauma surgery relies heavily on intraoperative fluoroscopic images to evaluate the quality of fracture reduction and fixation. However, fluoroscopic images have a narrow field of view and often cannot visualize the entire long bone axis.

Objectives

To compare the coronal femoral alignment between conventional X-rays to that achieved with a new method of acquiring a panoramic intraoperative image.

Materials and methods

Twenty-four cadaveric femurs with simple diaphyseal fractures were fixed with an angulated broad DCP to create coronal plane malalignment. An intraoperative alignment grid was used to help stitch different fluoroscopic images together to produce a panoramic image. A conventional X-ray of the entire femur was then performed. The coronal plane angulation in the panoramic images was then compared to the conventional X-rays using a Wilcoxon signed rank test.

Results

The mean angle measured from the panoramic view was 173.9° (range 169.3°–178.0°) with median of 173.2°. The mean angle measured from the conventional X-ray was 173.4° (range 167.7°–178.7°) with a median angle of 173.5°. There was no significant difference between both methods of measurement (P = 0.48).

Conclusion

Panoramic images produced by stitching fluoroscopic images together with help of an alignment grid demonstrated the same accuracy at evaluating the coronal plane alignment of femur fractures as conventional X-rays.     

Alternative treatment of forearm double fractures: new design intramedullary nail

Objective

This study aims to evaluate the results of intramedullary nail treatment in surgical treatment of adult displaced radius and ulna diaphyseal fractures.

Patients and methods

Eighteen patients (36 forearm fractures) who underwent intramedullary nail treatment due to radius and ulna fractures were retrospectively analyzed. Adult patients with displaced forearm double fractures were included in this study. Patients with open physeal lines, pathological fractures, Monteggia and Galeazzi fractures, distal radioulnar joint instability, bilateral fractures and bone loss were excluded.

Results

Thirteen patients were male (72.2 %) and five were female (27.8 %). Average age of the patients was 35.16 (18–63). Twelve patients (66.7 %) suffered right and six patients (33.3 %) left forearm fractures. Average follow-up period was 77.7 (55–162) weeks, average bleeding amount was 51.11 (15–100) ml, average time to bone union was 11.3 (8–20) weeks, average surgery time was 61.94 (45–80) min and average fluoroscopy time was approximately 2 (1–5) min. According to Grace-Eversman criteria, results were excellent in 14 (77.8 %) patients, good in 3 (16.8 %) and acceptable in 1 (5.6 %). Average DASH questionnaire score was 15.15 (4–38.8). There was no iatrogenic vascular, neural and bone injury during surgery. There was late rupture of extensor pollicis longus tendon in one patient, 4 months after surgery.

Conclusion

Intramedullary fixation method has advantages, such as closed application, short surgery period, good cosmetic results and early return to movement. We think intramedullary fixation method may be used as an alternative treatment method to plate osteosynthesis in surgical treatment of radius and ulna diaphyseal fractures.     

Rotational malalignment after closed intramedullary nailing of femoral shaft fractures and its influence on daily life

Background

Any intraoperative rotational malalignment during intramedullary nailing (IMN) of femoral shaft fractures will become permanent. We hypothesized that rotational malalignment of the femur and its compensatory biomechanics may induce problems in the hip, knee, patellofemoral and ankle joints. We purposed to clarify the influence of a femoral rotational malalignment of ≥10° on daily activities.

Methods

Twenty-four femoral shaft fracture patients treated with closed antegrade IMN were included. At last follow-up, to reveal any rotational malalignment, computerized tomography (CT) scans of both femurs (injured and uninjured sides) were examined. The patient groups with or without CT-detected true rotational malalignment ≥10° were compared with respect to the activity scores.

Results

Ten of the 24 patients (41.7 %) had a CT-detected true rotational malalignment of ≥10° compared with the unaffected side. The AOFAS scores were 100.00 for all of the patients. LKS, WOMAC knee, and WOMAC hip scores were significantly decreased in the patients with rotational malalignment compared to those without. Patients without rotational malalignment tolerated climbing stairs significantly better than those with rotational malalignment. Patients who could not tolerate climbing stairs were consistently complaining of anterior knee pain.

Conclusions

A femoral rotational malalignment of ≥10° is symptomatic for the patients, and the hip, knee, and patellofemoral joints were affected. Because of the possibly altered joint loadings and biomechanics, these could render patients prone to degenerative joint disease. In addition, due to the high rates of rotational malalignment after femoral shaft fracture and consequent malpractice claims, it is important for surgeons to be more aware of rotational alignment during surgery.