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PubMed1999

Monobloc and facial bipartition distraction with internal devices.

Distraction osteogenesis (DO) permits gradual lengthening of the craniofacial skeleton. With the advent of new internal devices, monobloc (M) and facial bipartition (FB) DO are feasible. The rationale behind M and FB distraction is (1) gradual advancement of the M segment is not associated with a substantial retrofrontal dead space; (2) because 5 to 7 days elapse prior to distraction, the nasofrontal opening, in theory, is allowed to remucosalize; (3) gradual expansion of the soft tissues takes advantage of skin creep, potentially limiting relapse; (4) the procedure appears to be less invasive with decreased blood loss and operative time, enabling its use in infants; (5) overdistraction may eliminate or reduce the frequency of subsequent procedures; and (6) the procedure may be combined with FB and skull vault remodeling to provide excellent results in more complex craniofacial dysostosis problems. Five children underwent M advancement (N = 3) and M with FB (N = 2) at 9 months to 5 years of age to correct functional abnormalities such as corneal exposure, increased intracranial pressure, and apnea, as well as severe craniofacial disfigurement. Each patient underwent from 22 to 30 mm of distraction with the Modular Internal Distraction (MID) system, developed by the first author (SRC). There was one infection late in the series along the DO cable track. There were no cases of epidural abscess. In conclusion, MDO, with and without FB, appears to be a safe and effective technique for transcranial frontofacial advancement. The morbidity of the procedure appears to be less than that of conventional M advancement.

Acrocephalosyndactylia↗

PubMed2000

Spontaneously infected cephalohematoma: case report and review of the literature.

Spontaneously infected cephalohematomas are rare occurrences; only five cases have been reported previously. Uninfected cephalohematomas are common and usually resolve without treatment. However, physicians should be aware that cephalohematomas are potential sites for infection and may require aspiration for diagnosis and treatment. Untreated infected cephalohematomas may lead to osteomyelitis, epidural abscess, or subdural empyema. We present a case of a spontaneously infected cephalohematoma with an associated osteomyelitis which was successfully managed with drainage and long-term antibiotics. A review of the literature is also presented.

Anti-Bacterial Agents↗

PubMed2004

Fronto-facial monobloc advancement with rigid external distraction (RED-II) system.

Fronto-facial monobloc advancement is one of the most rewarding procedures for upper and mid-face reconstruction in patients with craniosynostosis. However, it has challenging aspects. Epidural abscess and frontal bone necrosis after retrofrontal dead space is one of the major complications and has led many experienced surgeons not to continue with the procedure. Bone distraction can play a great role in preventing these problems. The Rigid External Distraction (RED-II) system is a external distraction device using the cranium as an anchorage point. In two craniosynostosis cases, fronto-facial monobloc advancement with the system was performed. Controllability of the monobloc segment increased significantly. Operative time and blood loss were lessened. No major complications were experienced.

Adolescent↗

PubMed2000

Otogenic intracranial inflammations: role of magnetic resonance imaging.

The clinical course of acute otitis media is usually short, and the process terminates because of the host's immune system, the infection-resistant properties of the mucosal linings, and the susceptibility of the major organisms (beta-hemolytic streptococcus or pneumococcus) to penicillin. However, a small proportion (1% to 5%) of untreated or inadequately treated patients may experience complications. Prior to the development of an intracranial complication of otomastoiditis, warning symptoms or signs may be evident; these include severe earache, severe headache, vertigo, chills and fever, and meningeal symptoms and signs. Increasing headache, particularly temporoparietal headache near the affected ear, often indicates an impending intracranial complication. This symptom, often the only indication of an epidural abscess, demands prompt investigation and medical and surgical intervention. In our experience, computed tomography (CT) permits accurate diagnosis of acute coalescent or latent (masked) mastoiditis and its associated complications. However, magnetic resonance imaging (MRI) remains the study of choice to evaluate otogenic intracranial complications. This article demonstrates the important role of MRI in diagnosing various stages of acute otomastoiditis and its associated complications.

Brain Diseases↗

PubMed1991

Bacterial arthritis.

In this review of the 1990 septic arthritis literature, we revisit synovial fluid leukocytosis, examine the utility of synovial fluid glucose and protein measurements, and look at the levels of two cytokines, tumor necrosis factor and interleukin-1, in infected joint fluids. We see the many faces of gonococcal arthritis and the ravages of septic arthritis when the host has rheumatoid arthritis. Should we recommend antibiotic prophylaxis for the rheumatoid patient with a prosthetic joint who is undergoing a procedure that leads to transient bacteremia? What are some of the salient features of septic arthritis when it involves the sternoclavicular or sacroiliac joints? We also look at some unusual microorganisms, eg, group C Streptococcus, Streptococcus viridans, Listeria monocytogenes, Pseudomonas cepacia, Pseudomonas maltophilia, and Neisseria sicca. In patients with acquired immunodeficiency syndrome, we encounter reports of septic arthritis, osteomyelitis, and spinal epidural abscess caused by opportunistic microorganisms. Two unusual sites of infection include the C1-2 lateral facet joint and subacromial bursa without involvement of the glenohumeral joint. Finally, we examine how to drain a septic knee: the orthopedic point of view.

Arthritis, Infectious↗

PubMed1994

The current spectrum of Staphylococcus aureus infection in a tertiary care hospital.

Staphylococcus aureus remains a prominent cause of community- and hospital-acquired infection. This study reviewed 162 cases of S. aureus infection occurring in 120 adults who were hospitalized at a Veterans Affairs Medical Center and referred for consultation to the Infectious Disease Service. There were 37 cases of skin and soft tissue infection, 5 pyomyositis, 34 osteomyelitis, 13 septic arthritis, 19 pneumonia, 3 empyema, 5 pyelonephritis, 37 vascular infection, 3 epidural abscess, and 6 miscellaneous infections. Bacteremia was documented in 56 of 119 (47%) cases in which blood cultures were obtained, indicating the serious nature of the infections in many cases. Staphylococcus aureus is widely prevalent in healthy persons. Given its ubiquity and the capacity to cause a broad array of infections, an effective host response must play an important role in preventing infection. This host response is immunologically nonspecific, in that it depends upon the effectiveness of mechanical barriers to invasion and, once invasion takes place, the interaction of PMN, complement, and antibody that is probably present in serum of all immunologically competent adults rather than sensitization of B or T lymphocytes by any identifiable antigens specific to S. aureus. Analysis of the present cases calls attention to S. aureus as an opportunistic pathogen, 1 that only infrequently causes serious infection in otherwise healthy persons. Nearly every patient in this series had 1 or more medical condition thought to predispose to infection; 279 such conditions were identified, representing an average of 2.3 per person. A break in the natural barrier to infection was also present in the majority of cases, for example, trauma, wound, or pre-existing decubitus ulcer in skin and soft tissue infections; endotracheal tube in pneumonia; and a catheter bypassing urethra or skin in urinary and vascular infections, respectively. The tendency for patients to be infected with S. aureus repeatedly (mean number of infections, 1.4 per patient) reflects the chronicity of many predisposing factors and, perhaps, of colonization as well. Staphylococcus aureus has a special predilection to cause infections involving prosthetic devices, perhaps related to its affinity for fibronectin, laminin, and other serum proteins that can mediate attachment to foreign material; 46 of 162 (28%) infections were associated with the presence of a foreign body. Such infections are difficult to eradicate with antibiotic therapy alone, perhaps because of a change in the metabolic state of adherent bacteria, and removal of the foreign body is generally required for cure.(ABSTRACT TRUNCATED AT 400 WORDS)

Abscess↗

PubMed1997

Arterialized occipitoparietal osteocutaneous flap.

We treated a case of postoperative osteomyelitis and epidural abscess in the left temporal and parietal region. The scalp and skull defect following debridement was reconstructed immediately with an arterialized occipitoparietal osteocutaneous flap that was supplied proximally by the occipital artery and distally by the superficial temporal artery. This method is one of the alternative methods for small to moderately sized skull and scalp defects in the temporal, parietal, and occipital areas without available superficial temporal artery.

Female↗

PubMed1993

Cervical discography complications and clinical efficacy.

To determine the incidence and magnitude of complications of cervical discography as well as to assess the clinical results of operative treatment based on discographic findings, a series of 31 patients who underwent cervical discography was reviewed. Twenty-six patients (84%) experienced provocative concordant symptomatology and were considered positive. The overall complication rate was 13% (4/31), including the development of an acute epidural abscess that led to myelopathy and eventual quadriplegia. Of the twenty-two patients who underwent anterior cervical discectomy and fusion on the basis of cervical discography, one patient had an excellent result (5%), nine patients had good results (41%), and six patients each had fair and poor results (54%). Diagnostic cervical discography was found not to provide the degree of clinical predictive value necessary to substantiate its potential risks and complications.

Abscess↗

PubMed1995

Unrecognized pneumothorax as a cause of intraspinal air.

STUDY DESIGN: This is a case report. OBJECTIVE: A case of intraspinal air in a polytraumatized patient with unrecognized pneumothorax after blunt chest trauma is reported. SUMMARY OF BACKGROUND DATA: In most cases, intraspinal air is associated with degenerative disc disease, epidural abscess, or synovial cyst, or it follows iatrogenic manipulation. Scialdone and Wagle first reported a case of intraspinal air due to a laceration of the right main bronchus. No previous case of intraspinal air after a simple unsuspected pneumothorax following blunt chest trauma has been reported. METHODS: During routine x-ray and computed tomography examination of a polytraumatized patient, an unsuspected pneumothorax due to a rib fracture was detected in a thorax computed tomography scan. Computed tomography scans of the cervical spine showed a collection of intraspinal air. RESULTS: The computed tomography examination of a polytraumatized patient with an unsuspected pneumothorax after blunt chest trauma showed the embolization of air in the paravertebral vein plexus and in the intraspinal canal. CONCLUSION: These observations suggest a wider indication for computed tomography scans of the thorax in blunt chest trauma. Also, whenever intraspinal air is found in the diagnostic course of a traumatized patient, a hidden pneumothorax should be suspected and ruled out.

Adult↗

PubMed1998

Concomitant tuberculosis and pyogenic infection of the cervical spine. A case report.

STUDY DESIGN: This case report describes a middle-aged woman with concomitant tuberculosis and pyogenic infection of the cervical spine. OBJECTIVE: To describe an unusual case of concomitant tuberculosis and pyogenic infection of the cervical spine. SUMMARY OF BACKGROUND DATA: Neither tuberculosis nor pyogenic spondylitis of the cervical spine is a common disorder. This case report describes a concomitant infection of C3-C4 in an otherwise healthy patient. To the authors' knowledge, such a case has never been reported. METHODS: This 52-year-old woman had spontaneous neck pain and myelopathy. Radiologic examination revealed the presence of an epidural abscess with destruction of C3-C4 vertebral bodies. RESULTS: Anterior decompression and fusion were performed, followed by therapy with antituberculosis drugs and antibiotics. The patient completely recovered. A follow-up radiograph revealed that solid fusion had been achieved. CONCLUSION: A case of concomitant tuberculosis and pyogenic infection of the cervical spine is presented. The possibility of this differential diagnosis should be considered, especially in areas of endemic tuberculosis. Examination of biopsy samples for histologic and bacteriologic findings is important to confirm this diagnosis. Radical debridement and combination therapy are strongly recommended to treat patients with this combination of infections.

Abscess↗

PubMed1998

Imaging of the cervical spine.

The emergence of multiplanar spiral computed tomography and high-resolution magnetic resonance imaging has resulted in the ability to see cervical spine anatomy and pathologic conditions in detail. Appropriately chosen and performed, these imaging studies can provide an anatomic basis for a clinical diagnosis and a therapeutic plan. In the evaluation of cervical spondylosis, magnetic resonance imaging is more commonly performed than computed tomography because of its superior depiction of soft tissue anatomy, including intervertebral discs and spinal cord disease. However, computed tomography still has a role, particularly in the assessment of osseous neural foraminal stenosis. In cervical spine trauma, routine radiography remains the procedure of choice. Computed tomography is performed in patients who have abnormal plain radiographs or in patients in whom there is a strong clinical suspicion of fracture with inconclusive radiographs. In the neurologically compromised patient, magnetic resonance imaging is useful in the diagnosis of cord and nerve root injury. Magnetic resonance imaging is the most sensitive and specific imaging study in the assessment of spinal infection, including osteomyelitis, discitis, and epidural abscess. Magnetic resonance imaging has also supplanted all other imaging methods in the evaluation of primary and secondary tumors of the spinal cord and spinal column. Despite the precise depiction of cervical spine anatomy provided by these imaging methods, the role of the clinician in determining the true cause of a patient's symptoms is in no way diminished. The presence of an imaging study abnormality does not automatically imply causality.

Cervical Vertebrae↗

PubMed2006

Treatment of tuberculous spondylitis with anterior stabilization and titanium cage.

UNLABELLED: We retrospectively reviewed 12 patients with spinal tuberculosis of the thoracic and lumbar spine who had radical débridement, anterior decompression, interbody arthrodesis with an anterior interbody titanium cage, and autologous bone grafts, combined with a standardized perioperative antituberculous regimen. Their mean age was 55.1 years and they were observed for a mean of 65.3 months. Indications for surgery included epidural abscess, structural destruction with instability, progressive kyphosis, and/or neurologic deterioration. Kyphotic deformity was corrected from a mean of 24.6 degrees (range, 15 degrees-32 degrees) to a mean of 10 degrees (range, 4 degrees-18 degrees). Tuberculous infection was controlled and bony fusion was achieved in all patients. No recurrence of infection or construct failure was recorded. All patients were safely mobilized within the first postoperative week; back pain fully resolved in eight patients and improved in the remaining four. We conclude that radical débridement followed by anterior stabilization with a titanium cage and bone grafting is a reasonable alternative for tuberculous spondylitis requiring surgical treatment. It enables accurate and lasting deformity correction and provides adequate stability to allow early mobilization. The presence of a titanium cage in an area of mycobacterial infection did not preclude infection control or lead to recurrence. LEVEL OF EVIDENCE: Therapeutic study. Level IV (case series). Please see Guidelines for Authors for a complete description of levels of evidence.

Adult↗

PubMed2006

Nontuberculous pyogenic spinal infection in adults: a 12-year experience from a tertiary referral center.

STUDY DESIGN: We performed a retrospective review of 48 cases of pyogenic spinal infection presenting over a 12-year period to the National Spinal Injuries Unit (NSIU) of the Republic of Ireland. The NSIU is the tertiary referral center for all adult spinal injuries and diseases of the spine warranting surgical intervention in the Republic of Ireland. OBJECTIVES: The objective of this study was to analyze the presentation, etiology, management, and outcome of nontuberculous pyogenic spinal infection in adults. SUMMARY OF BACKGROUND DATA: Pyogenic spinal infection encompasses a broad range of clinical entities, including spondylodiscitis, septic discitis, vertebral osteomyelitis, and epidural abscess. Management of pyogenic spinal infection can involve conservative methods and surgical intervention. METHODS: The medical records, radiologic imaging, and bacteriology results of 48 patients with pyogenic vertebral osteomyelitis from 1992 through 2004 were reviewed. The Hospital Inpatient Enquiry (HIPE) System and the NSIU Database were used to identify our study cohort. RESULTS: The average age of presentation was 59 years with an even distribution between males and females. Most patients (21 of 48) were symptomatic for between 2 and 6 weeks before presenting to hospital. The most frequently isolated pathogen was Staphylococcus aureus, in 23 of 48 cases (48%); 35 of 48 cases (73%) were managed by conservative measures alone, including antibiotic therapy and spinal bracing. However, in 13 of 48 cases (27%), surgical intervention was required because of neurologic compromise or mechanical instability. CONCLUSIONS: In the majority of cases, conservative management of pyogenic spinal infection with antibiotic therapy and spinal bracing is very successful. However, in a minority of cases, surgical intervention is warranted and referral to a specialist center is appropriate.

Adult↗

PubMed2006

Single-stage treatment of pyogenic spinal infection with titanium mesh cages.

STUDY DESIGN: Single institution retrospective review. OBJECTIVES: To report a series of pyogenic spinal infections treated with single-stage debridement and reconstruction with titanium mesh cages. SUMMARY OF BACKGROUND DATA: Various studies have reported surgical results of pyogenic spinal osteomyelitis with anterior debridement, strut grafting and fusion, including delayed posterior spinal instrumentation. Additionally, various authors have recommended against the use of instrumentation because of the concern about glycocalyx formation on the metal and chronic infection. At our institution, we routinely treat chronic vertebral osteomyelitis with single-stage debridement, reconstruction with a titanium mesh cage filled with allograft chips and demineralized bone matrix, and posterior pedicle screw instrumentation. To our knowledge, this is the largest single series reporting single-stage debridement and instrumentation of pyogenic spinal infection with titanium mesh cages and posterior instrumentation. MATERIALS AND METHODS: We retrospectively reviewed the patient records and radiographs of 21 consecutive patients (average age 49.3 years, range 23 to 80 years) with pyogenic vertebral osteomyelitis, all treated with titanium mesh cages. Average follow-up was 44 months (range, 25 to 70 months). Spinal levels included 6 thoracic, 4 thoracolumbar, 9 lumbar, and 2 lumbosacral (L5-S1) lesions. All patients had preoperative serum evaluation, which usually included blood cultures, complete blood count, erythrocyte sedimentation rate (ESR), and C-reactive protein (CRP), in addition to plain radiographs and magnetic resonance imaging. A positive needle biopsy was available in only 2/7 patients (29%), and overall, preoperative pathogen identification was available in only 7/21 patients (33%). All patients were treated postoperatively with a minimum of 6 weeks of intravenous antibiotics, with a specific antibiotic regimen directed toward the postoperative pathogen when identified (17/21 cases). Extensive radiographic evaluation was also performed. RESULTS: ESR and CRP were routinely elevated (18/20 and 11/17 cases respectively), whereas the white blood count was elevated in only 8 out of 21 cases (38%). The average duration of symptoms to diagnosis was approximately 13.6 weeks (range 3 weeks to 10 months). The indications for surgery included neurologic compromise, significant vertebral body destruction with loss of sagittal alignment, failure of medical treatment, and/or epidural abscess. All patients had resolution of infection, as noted by normalization of the ESR and CRP. Further, 16 out of 21 patients also had a significant reduction of pain. There were no deaths or new postoperative neurologic compromise. The most common pathogen was Staphylococcus aureus. Two patients required a second surgery (posterior irrigation and debridement) during the same admission for persistent wound drainage. Radiographically, the average segmental kyphosis (or loss of lordosis) was 11.5 degrees (range, 0 to 24 degrees) preoperatively, and +0.8 degrees (range, -3 to +5 degrees) at latest postoperative follow-up. There was an average of 2.2 mm cage settling (range, 0 to 5 mm) on latest follow-up. There were no instrumentation failures, signs of chronic infection, or rejection. CONCLUSIONS: Titanium mesh cages present a viable option for single-stage anterior surgical debridement and reconstruction of vertebral osteomyelitis, without evidence of chronic infection or rejection. When used in conjunction with pedicle screw instrumentation, there is minimal cage settling without loss of sagittal alignment.

Adult↗

PubMed2006

How to make the blockage between the nasal cavity and intracranial space using a four-layer sealing technique.

BACKGROUND: Craniofacial surgery for facial advancement or correction of severe craniofacial malformations such as orbital hypertelorism, Crouzon's disease, and Apert's syndrome may carry great risk. Postoperative infection after craniofacial surgery is a life-threatening complication. Ascending infection via nasofrontal communication in frontofacial monobloc advancement, intracranial Le Fort III osteotomy, correction of hypertelorism (intracranial approach), and acute trauma of cribriform plate can lead to life-threatening meningitis and meningoencephalitis. METHODS: A four-layer sealing technique for the closure of nasofrontal communication using Gelfoam, galeopericranial flap, rib bone graft, and Tissel is a very effective method. Until the rib bone graft is taken up, Gelfoam is used to temporarily block bony defects and prevents displacement of the rib bone graft. The authors used galeoperiosteal flap for the sufficient blood supply to the rib bone graft. Tissel is used as a biologic adhesive and for blockage of the surrounding gaps. RESULTS: There were no cases of cerebrospinal fluid rhinorrhea, epidural abscesses due to nasofrontal ascending infection, or meningitis, and no cases underwent débridement due to necrosis of the frontal bone flap. This indicated that the blockage of nasofrontal communication was successful in this series. Moreover, postoperative cosmetic outcomes were satisfactory. CONCLUSION: This study indicated that the blockage using the Gelfoam, galeopericranial flap, rib bone graft, and Tissel application was effective for the thorough management of nasofrontal fistula and the prevention of recurrent episodes.

Adolescent↗

PubMed2005

Aortic root infection in a prosthetic valve demonstrated by gallium-67 citrate SPECT.

A 70-year-old man presented with 6 weeks of worsening low back pain, fever, sweating, and weight loss with known severe lumbosacral osteoarthritis. His history included CABG in 1992, porcine aortic valve replacement, and permanent pacemaker implantation in 2002. CT of the chest, abdomen, and pelvis did not demonstrate a cause for the symptoms. Blood cultures grew penicillin-sensitive enterococcus and he was referred for evaluation of possible osteodiskitis or epidural abscess. Gallium planar imaging demonstrated increased activity in the lumbar spine, suspicious for the presence of infection, and activity was noted in the mid mediastinum as well. SPECT clearly showed increased Ga-67 activity in the region of the aortic root, suspicious for infection. A perivalvular aortic root abscess was subsequently demonstrated by transesophageal echo. This case illustrates the value of Ga-67 chest SPECT in patients with prosthetic valves for detection of endocarditis.

Aged↗

PubMed2006

Cranioplasty with auto-purified bone flap after infection.

Cranioplasty of cranial bone defects can generally be accomplished with autogeneous bones as well as with nonbiological materials. Autologous living-bone grafts are ideal but require sacrifice of donor bone, and synthetic materials might have possible exposure of the materials, delayed infection, and/or allergic reaction. The authors report cranioplasty with a bone graft after auto-purification by subcutaneous preservation of the contaminated bone fragment. A 47-year-old man was given a frontal cranioplasty with a split parietal bone and rib. Epidural abscess ensued, and debridement was performed to control the infection. The largest bone fragment was subcutaneously preserved in the chest wall and reused for cranioplasty. Subcutaneous preservation of bone is a promising strategy for cranioplasty after neurosurgery. The condition of the bone fragment can be inferred from the condition of the site at which it is preserved. If the bone flap is contaminated, it can be purified by the patient's immune system.

Frontal Bone↗

PubMed2006

Treatment failure due to emergence of resistance to carbapenem during therapy for Shewanella algae bacteremia.

We describe a case of bacteremia due to imipenem-susceptible Shewanella algae. Despite treatment with imipenem, the patient developed a spinal epidural abscess, from which imipenem-resistant S. algae was isolated. The development of resistance should be monitored when S. algae infection is treated with imipenem, even though the strain is initially susceptible to imipenem.

Aged↗