Flexible intramedullary nailing as fracture treatment in children

Paediatric forearm fracture with a twist: a proximal radioulnar translocation combined with radial head fracture

A 10-year-old girl presented to the emergency department with proximal radioulnar translocation and radial head fracture, after fall onto an outstretched hand. Open reduction was used to reduce and stabilise the elbow joint after which the radial head was fixated by Kirschner wires. Three months after surgery, full range of motion was regained and union of the radial head was achieved. Proximal radioulnar translocation is a rare injury which is often missed on initial radiographs. Persistent restriction of forearm rotation with seemingly normal elbow configuration must trigger to take a closer look at the relationship between the ulna, radius and distal humerus. We show that early diagnosis and treatment of a proximal radioulnar translocation associated with a radial head fracture results in an excellent functional outcome.

Open unstable metaphyseo-diaphyseal fractures of the tibia in adolescents: treatment by flexible intramedullary nails augmented by external fixator

INTRODUCTION

The treatment of open and unstable metaphyseo-diaphyseal fractures of the tibia in adolescents is challenging. It is important to choose a fixation method that can maintain alignment, allow wound care and not violate the growth plate. The aim of this work was to evaluate the efficacy of using flexible intramedullary nails (FIN) augmented by external fixator (EF) in the management of such fractures.

PATIENTS AND METHODS

A total of 26 males, with a mean age of 14.08 years and average body weight of 49.8 kg, presented with open metaphyseo-diaphyseal tibial fractures. All cases were treated using FIN augmented by mono-lateral EF. The fractures were located at the upper third in 17 cases and at the lower third in nine cases. The fracture pattern was spiral in eight cases, oblique in seven and multi-fragmentary in 11. The results were evaluated according to the scoring system for femoral TENs.

RESULTS

All fractures united primarily after an average eight to 12 weeks with no evident angular deformity or limb-length discrepancy. None of the cases required cast immobilization or revision procedure. Twenty patients had excellent results, six patients showed good results and none had poor results. Fracture characteristics as well as patients' characteristics had no statistically significant effect (p > 0.005) on the final end results.

CONCLUSIONS

The use of FIN augmented by EF is a good alternative in the management of open metaphyseo-diaphyseal tibial fractures in adolescents. This fixation provides more stability, allows easy access to the wound and early patients' ambulation.

Percutaneous Kirschner wire (K-wire) fixation for humerus shaft fractures in children: A treatment concept

BACKGROUND

Fractures of the humeral shaft are uncommon, representing less than 10 percent of all fractures in children. Humeral shaft fractures in children can be treated by immobilisation alone. A small number of fractures are unable to be reduced adequately or maintained in adequate alignment, and these should be treated surgically. In the present study, Kirschner wires (K-wire) were used to achieve a closed intramedullary fixation of humeral shaft fractures. The objective of this study was to evaluate the efficacy of intramedullary K-wires for the treatment of humeral shaft fracture in children.

PATIENTS AND METHODS

This prospective study was conducted in the Department of Orthopaedic surgery in M. M. Medical College from June 2005 to June 2010. Sixty-eight children with a mean age of 7.7 years (range, 2-14 years) were recruited from Emergency and out patient department having closed fracture of humerus shaft. All patients were operated under general anaesthesia. All patients were followed for 12 months.

RESULTS

Out of 68 patients, 64 patients underwent union in 42-70 days with a mean of 56 days. Complications found in four patients who had insignificant delayed union which were united next 3 weeks. Intramedullary K-wires were removed after an average of 5 months without any complications. The results were excellent in 94.11% and good in 5% children.

CONCLUSION

This technique is simple, quick to perform, safe and reliable and avoids prolonged hospitalization with good results and is economical.

Humeral shaft fracture treatment in the elite throwing athlete: a unique application of flexible intramedullary nailing

Humeral shaft stress fractures are being increasingly recognized as injuries that can significantly impact throwing mechanics if residual malalignment exists. While minimally displaced and angulated injuries are treated nonoperatively in a fracture brace, the management of significantly displaced humeral shaft fractures in the throwing athlete is less clear. Currently described techniques such as open reduction and internal fixation with plate osteosynthesis and rigid antegrade/retrograde locked intramedullary nailing have significant morbidity due to soft tissue dissection and damage. We present a case report of a high-level baseball pitcher whose significantly displaced humeral shaft stress fracture failed to be nonoperatively managed and was subsequently treated successfully with unlocked, retrograde flexible intramedullary nailing. The athlete was able to return to pitching baseball in one year and is currently pitching in Major League Baseball. We were able to recently collect 10-year follow-up data.

Percutaneous k-wire fixation for femur shaft fractures in children: a treatment concepts for developing countries

Background:

Fractures shaft femur is a major cause of morbidity and mortality in patients with lower extremity injuries.

Aims:

The aim of this study was to evaluate the efficacy of intramedullary Kirschner wires for the treatment of femoral shaft fracture in children.

Subjects and Methods:

This prospective study was conducted in the Department of Orthopaedic surgery in M. M. Medical College from June 2005 to June 2010. Sixty eight children with a mean age of 7.7 years (range, 2-14 years) were recruited from Emergency and out patient department having closed fracture of femoral shaft. All patients were operated under general anesthesia. All patients were followed for twelve months.

Results:

Out of sixty eight patients, sixty four patients underwent union in 42 to 70 days with a mean of 56 days. Touch down weight bearing was started on 2^nd post-operative day. Complications found in four patients who had insignificant delayed union which were united next three weeks. Intramedullary Kirschner-wires were removed after an average of five months without any complications. The results were excellent in 94.1% (64/68) and good in 5.8% (4/68).

Conclusion:

This technique is simple, quick to perform, safe and reliable and avoids prolonged hospitalization with good results and is economical.

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.

Flexible intramedullary nails with traction versus plaster cast for treating femoral shaft fractures in children: comparative retrospective study

CONTEXT AND OBJECTIVE Femoral fractures are common in children between 2 and 12 years of age, and 75% of the lesions affect the femoral shaft. Traction followed by a plaster cast is universally accepted as conservative treatment. However, in some situations, a surgical approach is recommended. The objective here was to compare treatments for femoral shaft fractures using intramedullary nails (titanium elastic nails, TEN) versus traction and plaster casts in children. The hypothesis was that TEN might provide better treatment, with good clinical results in comparison with plaster casts. DESIGN AND SETTING This retrospective comparative study was conducted in a public university hospital. METHODS Sixty children with femoral fractures were evaluated; 30 of them underwent surgical treatment with TEN and 30 were treated conservatively using plaster casts. The patients' ages ranged from 5 to 13 years (mean of 9 years). RESULTS The mean duration of hospitalization was nine days for the surgical group and 20 days for the conservative group. The incidence of overgrowth in the patients treated with TEN was 60.0% and, for those treated conservatively, 13.3%. Partial weight-bearing was allowed after 3.5 weeks in the surgical group and after 9.6 weeks in the conservative group. New hospitalization was required for 90.0% in the surgical group and 16.7% in the conservative group. Patients treated with plaster casts presented higher incidence of complications, such as loss of reduction. CONCLUSIONS The surgical method presented better results for children.

Pre-bent elastic stable intramedullary nail fixation for distal radial shaft fractures in children

OBJECTIVE

To investigate the functional and radiographic outcomes of pre-bent elastic stable intramedullary nail in treatment of distal radial shaft fractures in children.

METHODS

From January 2006 to December 2008, 18 children with distal radial shaft fracture were treated by close reduction and internal fixation with a pre-bent elastic stable intramedullary nail. The age range was from 5 years to 15 years, with an average of 9 years and 8 months. The minimum follow-up was 12 months.

RESULTS

All fractures maintained good alignment postoperatively, and 94.4% (17/18) of the patients regained a full range of rotation of the forearm. One patient has limitation of rotation to less than 10°, this had improved by final follow-up. Complications included soft tissue irritation at the site of nail insertion in one patient and transient scar hypersensitivity in another.

CONCLUSION

Fixation with a pre-bent elastic stable intramedullary nail is an effective, safe and convenient method for treating distal radial shaft fractures in children.

Short hospitalization period with elastic stable intramedullary nails in the treatment of femoral shaft fractures in school children

PURPOSE

To evaluate the safety and period of hospitalization of the treatment of femoral shaft fractures with titanium elastic nails (TEN) in the age range 5 to 14 years. The hypothesis was that TEN might be a low-cost treatment, with good clinical results and short length of hospitalization.

METHODS

Thirty children with femur fractures were surgically treated with TEN.

RESULTS

The patients spent an average of 9.4 days in hospital. The average period for the healing process was 7.7 weeks. Partial weight bearing was permitted 3.3 weeks after surgery. The incidence of overgrowth was 60%, with an average of 0.40 cm.

CONCLUSIONS

The surgical method brings few complications and results in good limb alignment, with a short period of hospitalization and early return to daily activities and school.

Elastic intramedullary nailing in unstable fractures of the paediatric tibial diaphysis: a systematic review

PURPOSE

The majority of paediatric tibial fractures can be managed conservatively. However, there is a small but significant group of patients that require surgical intervention for several indications, most notably, unstable fractures. There are various surgical options, each with its own advantages and risks. This review establishes the current available evidence for the use of elastic intramedullary nails in this group.

METHODS

A systematic review of the currently available literature was performed. The relevant studies were then critically appraised.

RESULTS

Seven applicable retrospective case series were identified, with the outcomes from a total of 210 (range 16-60) patients considered. The mean time to union ranged from 7 to 21 weeks. Reported complications included small numbers each of delayed union, non-union, malunion, leg length discrepancy and infection.

CONCLUSIONS

There is only a small body of evidence currently published on this topic. The evidence published so far concludes that elastic intramedullary nailing represents an effective and reliable method to treat an unstable fracture of the tibial diaphysis in the paediatric patient, where conservative management is not appropriate.

Differences in biomechanical stability of femur fracture fixation when using titanium nails of increasing diameter

PURPOSE

The purpose of this study was to compare the biomechanical stability generated when utilizing increasing sizes of titanium (Ti) flexible nails for fixation of simulated comminuted femur fractures.

METHODS

Five synthetic adolescent-sized femur models were reamed to create a 9-mm canal. A 2-cm section was removed in the mid-diaphysis to simulate comminution. Each femur was first stabilized with bilateral, retrograde 3.0-mm titanium elastic nails. Femurs were tested in axial rotation and axial compression. The constructs were removed, and femurs were re-nailed with 3.5-mm nails. Identical testing was conducted. These nails were then removed, and femurs were re-nailed with 4.0-mm nails. This provided data on "canal fill" representing 67, 78 and 89% of the reamed canal diameter. Data for axial rotation (degrees) and failure load (N) required to produce 5 mm of fracture shortening were analyzed with a one-way ANOVA (P < 0.05) and a Tukey's post-hoc test for multiple comparisons.

RESULTS

For axial rotation, there were statistically significant improvements in rotational control for each increase in nail size. For axial stability, each increase in nail size resulted in increased axial failure loads to 5 mm, although these data were not statistically different. A specific comparison between 3.0- and 3.5-mm nails for compressive stability found significantly greater stability afforded by using 3.5-mm nails.

CONCLUSIONS

Data from this study demonstrate that increasing the amount of canal fill provides significant improvements in rotational control. The largest improvement was seen when increasing from 3.0- to 3.5-mm nails. While increasing the nail size from 3.5 to 4.0 mm again provided greater stability, larger nails may be more difficult to insert. Thus, increasing the nail size for femoral fracture fixation should be considered after measuring the diameter of the canal and evaluating the potential difficulty of insertion as well as specific demands of the fracture pattern.

Paediatric forearm fractures: the increasing use of elastic stable intra-medullary nails

This paper entails a clinical review of outcomes and complications of 19 consecutive paediatric patients having undergone elastic stable intramedullary nailing for diaphyseal forearm fractures over a one year period. The mean age of patients was 9 years. The majority were male with a ratio of 17:2. In this group there were two patients with grade 1 open fractures. Four of the fractures required open reduction due to difficulty in reduction and soft tissue interposition. All fractures went on to osseous union with minimal deformity and full recovery. There were three complications which included one EPL rupture requiring delayed repair, one EPB partial rupture repaired at time of surgery, and one superficial radial nerve injury. Two patients also presented with nails penetrating the skin prior to removal. Elastic stable intramedullary nails offer good fixation to control deformity in midshaft forearm fractures for paediatric patients. However there is a high rate of possible complications around the radial insertion point.

Internal fixation of femoral shaft fractures in children by intramedullary Kirschner wires (a prospective study): its significance for developing countries

BACKGROUND

To evaluate internal fixation by intramedullary Kirschner wires as a surgical technique in the treatment of femoral shaft fractures in children by a prospective study.

METHODS

17 femoral shaft fractures at various levels in 16 children aged 2-15 years were treated by closed intramedullary Kirschner wiring under image intensifier control between May 2000 and October 2003. No external splint was used.

RESULTS

Fracture union was achieved in 6-14 weeks. Non-weight bearing crutch walking was started 2-3 days after surgery. Full weight bearing started 6-14 weeks. Average operative time was 40 min (range 20-72 min). Wires were removed after 8-22 weeks. There were no infections, no limb length disparity. One child had pin track ulceration. A big child of 14 years had angulation of the fracture.

CONCLUSION

Intramedullary nailing of femoral shaft fractures in children by stainless steel Kirschner wires is an effective method, which compares well with other studies. It is a simple procedure, which can be easily reproduced. Blood loss is minimal, and the operative time short. There is no need pre-bend the wires in a C or S curve. Stainless steel Kirschner wires are cheap, universally available, and can be manufactured locally. The cost of Image intensifiers is affordable in most of the cities of the developing countries. The hospital does not have to maintain a costly inventory. Provides early mobility, return to home and, school. Gives a predictable clinical pathway and reduces occupancy of hospital beds. The technique was successfully applied for internal fixation of other diaphyseal fractures in children and some selected diaphyseal fractures in adults. Based on my experience and a review of the literature, I recommend this technique as a modality for treatment of femoral shaft fractures in children aged 2 to 14 years.

[Experience with elastic stable intramedullary nailing (ESIN) of shaft fractures in children]

The aim of this prospective clinical controlled trial was to investigate the early and midterm results of shaft fractures in children treated with elastic stable intramedullary nailing (ESIN). From January 1997 to December 2001, elastic stable intramedullary nailing was carried out on 112 children with 118 diaphyseal fractures. The mean age was 7.7 years. There were 51 fractures of the lower arm, 46 femoral fractures, 14 of the lower leg, and 7 of the humerus. A total of 92 children have been followed up for more than 12 months. The mean time of follow-up was 38 months.The mean time of fluoroscopy was 2.2 min. Open reduction was necessary in 3.4 %. In children with injuries of the lower extremity, full weight bearing was achieved after a mean period of 9.3 days. In 1.8% of the children, reoperation was necessary within the first 10 days after the operation. In 3.6 % there was painful skin irritation due to the protruding end of a nail. No infection or delayed union was observed. Implant removal was done after a mean time of 5.6 months. There was no rotational or angular deformity of more than 5 degrees in children with isolated fractures of the lower extremity. Mean lengthening of the injured leg was 2.4 mm. In three children who had fractures of the upper extremity, a deficit in range of motion of the adjacent joints was detected. The current results show that intramedullary fixation of displaced diaphyseal fractures in children with a flexible titanium nail is a safe, minimally invasive surgical technique producing excellent functional and cosmetic results.