The orthopaedic management of peripheral ischaemia in meningococcal septicaemia in children

The correction of a 140 mm lower limb difference as a late complication of a childhood meningococcal sepsis with a fully implantable system

Meningococci (Neisseria meningitidis) are the typical agents of a severe septic shock with fulminate diseases. Many children survive the initial phase of shock today; there are several late complications such as limb differences, large scar areas and impaired soft tissue. The current case report deals with the impaired bone growth and a resulting lower limb difference as a late complication of meningococcal sepsis. Usually, these cases are corrected by external fixator systems. In the present case, a lower leg-length difference of 140 mm was uneventfully corrected in two operative steps by fully implantable systems despite the presence of large scars and seriously affected soft tissue. In conclusion, fully implantable systems, even in difficult cases, may be an excellent alternative to external fixator systems.

The management of the orthopaedic sequelae of meningococcal septicaemia: patients treated to skeletal maturity

Septicaemia resulting from meningococcal infection is a devastating illness affecting children. Those who survive can develop late orthopaedic sequelae from growth plate arrests, with resultant complex deformities. Our aim in this study was to review the case histories of a series of patients with late orthopaedic sequelae, all treated by the senior author (CFB). We also describe a treatment strategy to address the multiple deformities that may occur in these patients. Between 1997 and 2009, ten patients (seven girls and three boys) were treated for late orthopaedic sequelae following meningococcal septicaemia. All had involvement of the lower limbs, and one also had involvement of the upper limbs. Each patient had a median of three operations (one to nine). Methods of treatment included a combination of angular deformity correction, limb lengthening and epiphysiodesis. All patients were skeletally mature at the final follow-up. One patient with bilateral below-knee amputations had satisfactory correction of her right amputation stump deformity, and has complete ablation of both her proximal tibial growth plates. In eight patients length discrepancy in the lower limb was corrected to within 1 cm, with normalisation of the mechanical axis of the lower limb. Meningococcal septicaemia can lead to late orthopaedic sequelae due to growth plate arrests. Central growth plate arrests lead to limb-length discrepancy and the need for lengthening procedures, and peripheral growth plate arrests lead to angular deformities requiring corrective osteotomies and ablation of the damaged physis. In addition, limb amputations may be necessary and there may be altered growth of the stump requiring further surgery. Long-term follow-up of these patients is essential to recognise and treat any recurrence of deformity.

Acute pediatric upper extremity compartment syndrome in the absence of fracture

BACKGROUND

To determine the etiologies and outcomes associated with acute pediatric upper extremity compartment syndrome in the absence of fracture.

METHODS

A retrospective review was performed looking at children treated for acute upper extremity compartment syndrome in the absence of fracture at a major teaching hospital. Reason for admission, age, etiology, sensorium, time to fasciotomy, involved compartments, secondary procedures, and functional outcome were recorded.

RESULTS

A total of 14 extremities in 13 children with acute compartment syndrome in the absence of fracture were identified over a 22-year period at this single institution. There were 8 boys and 5 girls, with an average age of 7.2 years. Average follow-up was 22 months. Ten patients were being managed in the intensive care unit and had an obtunded sensorium. The cause was iatrogenic in 8 patients, and 2 of these resulted in loss of the involved limb. Six patients required 9 secondary procedures, including 4 amputations, 3 contracture releases, and 2 skin grafts. Of the 3 patients who required a total of 4 amputations, 2 of the patients were in the intensive care unit, and all were younger than 3 years. Only 7 patients had normal hand function. Upon comparing patients with a normal outcome versus those with an abnormal outcome, there was a statistically significant difference if surgery was performed in shorter than 6 hours (P = 0.033).

CONCLUSIONS

This problem is often iatrogenic in etiology and can be diagnosed late in this population. An increased level of vigilance should be adopted for this entity because the final outcome can be catastrophic for both the patient and the hospital and early fasciotomy is associated with improved results.

LEVEL OF EVIDENCE

Level IV Case Series.

Acute lower extremity compartment syndrome (ALECS) screening protocol in critically ill trauma patients

BACKGROUND

Acute lower extremity compartment syndrome (ALECS) is a devastating complication that often presents silently in critically injured patients; therefore, we developed a protocol to screen high-risk patients.

METHODS

This prospective observational study included all Shock Trauma intensive care unit patients who met specific high-risk criteria including pulmonary artery catheter-directed shock resuscitation, open or closed tibial shaft fracture, major vascular injury below the aortic bifurcation, abdominal compartment syndrome, or pelvic or lower extremity crush injury. Patients were screened at admission and every 4 hours thereafter for the first 48 hours of admission. Screening included physical examination (PE) and anterior or deep posterior calf compartment pressure measurements when PE was suspicious or unreliable. A positive screening, defined as a DeltaP <30 mm Hg (where DeltaP is the difference between the diastolic blood pressure and the compartment pressure), mandated a four-compartment fasciotomy.

RESULTS

During a 6-month period, the incidence of ALECS in screened patients was surprisingly high at 20% (9 patients). With diligent screening, it was diagnosed early in the patient's Shock Trauma intensive care unit course. These were patients with severe injuries with an Injury Severity Score of 32.0 +/- 12.5 who exhibited significant volume depletion, with a base deficit of 12.9 +/- 5.9 mEq/L and a lactate level of 13.0 +/- 5.2 mmol/L, requiring large volume resuscitation. Although aggressive fasciotomy resulted in no limb loss, ALECS was associated with an exceedingly high mortality rate at 67%.

CONCLUSIONS

ALECS is an important clinical entity in critically injured patients with trauma associated with significant mortality. Aggressive screening may provide some diagnostic insight to those at risk.

Orthopaedic sequelae of meningococcal septicemia

The records of 143 patients admitted with a diagnosis of meningococcal septicemia were reviewed to identify vascular, cutaneous, and osseous sequelae. During the acute phase of the disease there were 21 deaths and 17 patients lost tissue. Thirty-six digits were allowed to autoamputate and six surgical amputations were performed. Each of the latter developed physeal growth arrests proximal to the level of amputation. Four patients underwent fasciotomies for compartment syndrome. Two of these patients had absent distal pulses and at surgery were found to have nonviable limb segments; the authors conclude that fasciotomy is rarely indicated. Sixteen patients were identified with a total of 41 growth arrests. Twenty-three of these occurred under areas of cutaneous scarring and were diagnosed 2 to 9 years after the index admission. The authors believe that patients requiring débridement and/or skin grafting of areas of skin necrosis should be reviewed regularly during the growth period to identify physeal damage at a stage when less complex surgery may be indicated.

Late orthopaedic sequelae following meningococcal septicaemia. A multicentre study

Between 1990 and 2001, 24 children aged between 15 months and 11 years presented with late orthopaedic sequelae after meningococcal septicaemia. The median time to presentation was 32 months (12 to 119) after the acute phase of the disease. The reasons for referral included angular deformity, limb-length discrepancy, joint contracture and problems with prosthetic fitting. Angular deformity with or without limb-length discrepancy was the most common presentation. Partial growth arrest was the cause of the angular deformity. Multiple growth-plate involvement occurred in 14 children. The lower limbs were affected much more often than the upper. Twenty-three children underwent operations for realignment of the mechanical axis and limb-length equalisation. In 15 patients with angular deformity around the knee the deformity recurred. As a result we recommend performing a realignment procedure with epiphysiodesis of the remaining growth plate when correcting angular deformities.

Review of management of purpura fulminans and two case reports

Purpura fulminans (PF) is a haemorrhagic condition usually associated with sepsis or previous infection. Features include tissue necrosis, small vessel thrombosis and disseminated intravascular coagulation. Gram-negative organisms are the commonest cause of the acute infectious type, which is often associated with multi-organ failure. An idiopathic variety, however, is often confined to the skin. The mortality rate has decreased with better treatment of secondary infections, supportive care and new treatments, but it remains a disabling condition often requiring major amputations. We describe two cases and review the various treatments for this condition.