Liliana Camison

Foot Salvage After Loss of the First and Second Metatarsal Rays with a Free Fibular Osteocutaneous Flap

Severely comminuted fractures of the metatarsal bones with significant bone and soft-tissue loss have commonly subjected patients to proximal amputation procedures. We describe two patients who experienced high-energy traumatic injuries to their limbs that resulted in significant destruction of their first and second metatarsal bones with overlying soft-tissue trauma not amenable to local coverage. In both cases, a vascularized free fibular osteocutaneous flap was used to reconstruct the metatarsal bone defect and traumatized soft tissues so that a proximal amputation was avoided. At an average of 14 months of follow-up, both patients had recovered well and regained independent ambulation, with one patient being able to play soccer. We show that the free fibular osteoseptocutaneous flap is useful in reconstructing significant metatarsal bone defects and in avoiding amputations in this patient population. The skin component of the flap may be used to fill soft-tissue losses, and the fibula bone may be osteotomized so that more than one ray may be reconstructed.

Intraosseous venous malformations of the zygoma: clarification of misconceptions regarding diagnosis and management.

AbstractPrimary intraosseous venous malformations affecting the zygoma are rare vascular lesions, with only 35 cases reported in the surgical literature. Despite the establishment of the binary classification system, which serves to distinguish vascular tumors from malformations, inappropriate use of the term “hemangioma” to describe a variety of distinct vascular anomalies remains widespread. The authors present 3 cases of zygomatic intraosseous venous malformations and summarize the clinical, radiographic, and immunohistochemical features of these lesions. In each case, an insidious clinical course, combined with the pathognomonic finding of radiating trabeculae on computed tomography, suggests the diagnosis of intraosseous venous malformation. Negative glucose transporter isoform 1 immunoreactivity and histopathological analysis were used to reinforce this diagnosis in 1 patient. Management was individualized in each case, based on symptom complex and aesthetic concern. Given that the therapeutic approach to vascular anomalies is dependent on accurate diagnosis, resolution of semantic matters will optimize the management of these lesions.

Nonsyndromic Craniosynostosis and Associated Abnormal Speech and Language Development

Background: Although many metrics for neurodevelopment in children with nonsyndromic craniosynostosis have been analyzed, few have directly examined early language acquisition and speech development. The authors characterized language acquisition and speech development in children with nonsyndromic craniosynostosis. Methods: The authors’ institutional database was queried for nonsyndromic craniosynostosis from 2000 to 2014. Patients with an identified syndrome were excluded. Specific data elements included age, gender, velopharyngeal adequacy by means of the Pittsburgh Weighted Speech Scale, evaluation for anatomical motor delay, language acquisition delay/disorder, articulation or speech sound production delays/disorders, and whether speech therapy was recommended. Diagnosis of a submucous cleft palate was noted. Results: One hundred one patients met inclusion criteria, of which 57.4 percent were male. Average age at the time of the most recent speech evaluation was 6.1 years (range, 2.31 to 17.95 years); 43.6 percent had normal speech/language metrics and 56.4 percent had one or more abnormalities, including anatomical motor delay/disorder (29.7 percent), language acquisition delay/disorder (21.8 percent), articulation or speech production delay/disorder (4.0 percent), hypernasality (15.8 percent), and velopharyngeal insufficiency or borderline competency (23.8 percent). Average Pittsburgh Weighted Speech Scale score was 1.3 (range, 0 to 5), and 29.7 percent (n = 30) of patients were recommended to have speech therapy. In addition, 25.8 percent of patients were diagnosed with a submucous cleft palate. Conclusions: One in four patients with nonsyndromic craniosynostosis carried a diagnosis of submucous cleft palate. The authors found that abnormal speech and language development occurs in one in 1.7 patients with nonsyndromic craniosynostosis, and that speech therapy for such abnormal development is warranted in one in 3.4 of them—a prevalence two to five times higher compared with the general pediatric population.

Biomechanical Integrity in Craniofacial Surgery: Calvarial Reconstruction in Favorable and Infected Defects with Bone Morphogenetic Protein 2

Background: The limitations of autologous and alloplastic reconstruction for craniofacial bone defects have created a clinical need for viable tissue-engineering strategies. Recombinant human bone morphogenetic protein-2 (rhBMP-2) has shown promise in this setting. The aim of this study was to determine the long-term biomechanical properties of rhBMP-2–mediated calvarial reconstruction. Methods: Twelve-week-old New Zealand White rabbits underwent subtotal calvarectomy. Defects were repaired in one of several groups: immediate reconstruction with autologous graft, immediate reconstruction with cryopreserved bone graft, immediate reconstruction with rhBMP-2 (favorable), and delayed reconstruction with rhBMP-2 following infection and subsequent débridement (unfavorable). Cryopreserved reconstructions were measured at 6 weeks; autologous reconstructions were measured at 6 weeks and 6 months; and both favorable and unfavorable rhBMP-2 reconstructions were assessed at 6 weeks, 6 months, and 1 year after reconstruction. Healing was assessed with computed tomography. An unconfined compression test was performed for biomechanical analysis. Stress at 20 percent strain, percentage relaxation, tangent modulus, and final strain at 1800 N were compared between groups. Results: Nearly complete radiographic coverage was achieved by 6 months for autologous reconstruction and by 6 weeks for rhBMP-2 reconstruction. Favorable rhBMP-2 reconstruction demonstrated a larger final strain at 1800 N through 1 year compared with native bone. Bone in unfavorable rhBMP-2 reconstruction was more compressible than native bone, with a larger final strain at 1800 N at 1 year. There were no significant differences between favorable and unfavorable groups. Conclusions: Despite providing radiographic coverage, the biomechanical properties of rhBMP-2 bone differ from those of native bone. Further studies are warranted to determine how these properties affect overall strength and structural integrity.

Repair of a Complicated Calvarial Defect: Reconstruction of an Infected Wound With rhBMP-2.

BackgroundManagement of the previously infected craniofacial defect remains a significant clinical challenge, posing obstacles such as wound healing complications, lack of donor site availability, and predisposition to failure of the repair. Optimal therapy would reconstruct like with like, without donor site morbidity. The purpose of this study was to compare the efficacy of recombinant human bone morphogenetic protein-2 (rhBMP-2)–mediated bone regeneration with the current standard of autologous bone graft for repair of previously infected calvarial defects. MethodsNineteen adult New Zealand white rabbits underwent subtotal calvariectomy. Bone flaps were inoculated with Staphylococcus aureus and replanted. After 1 week of infection, bone flaps were removed, and wounds were debrided, followed by 10 days of antibiotic treatment. After 6 weeks, animals underwent scar debridement followed by definitive reconstruction in 1 of 4 groups: empty control (n = 3), vehicle control (buffer solution on absorbable collagen sponge [ACS], n = 3), autologous bone graft (n = 3), or rhBMP-2 repair (rhBMP-2/ACS, n = 10). Animals underwent computed tomography imaging at 0, 2, 4, and 6 weeks postoperatively, followed by euthanization and histological analysis. Percent healing was determined by 3-dimensional analysis. A (time × group) 2-way analysis of variance was performed on healing versus treatment group and postoperative time. ResultsAt 6 weeks postoperatively, rhBMP-2/ACS and autologous bone graft resulted in 93% and 68% healing, respectively, whereas the empty and vehicle control treatment resulted in 27% and 26% healing (P < 0.001). Histologically, compared to autologous bone graft, bone in the rhBMP-2/ACS group was more cellular and more consistently continuous with wound margins. ConclusionsThe rhBMP-2 therapy is effective in achieving radiographic coverage of previously infected calvarial defects.

Variability in Minimally Invasive Surgery for Sagittal Craniosynostosis

Abstract Minimally invasive approaches to the surgical correction of sagittal craniosynostosis are gaining favor as an alternative to open cranial vault remodeling. In this systematic review, the reviewers evaluate the variability in described surgical techniques for minimally invasive correction of sagittal craniosynostosis. Articles were selected based on predetermined inclusion and exclusion criteria from an online literature search through PubMed, EMBASE, and the Cochrane library. Extracted data included the incisions, method of dissection, osteotomies performed, and type of force therapy utilized. A total of 28 articles from 15 author groups were included in the final analysis. Of the 28 articles, 17 distinct techniques were identified. Significant variation existed in both the technique and the terminology used to describe it. Access to the cranium varied between a standard bicoronal incision (n = 2), a “lazy S” incision (n = 2), and multiple short incisions along the fused sagittal suture (n = 13). Additional variations were found in the size and design of the osteotomy, the usage (and duration, if applicable) of force therapy, and the age of the patient at the time of surgical intervention. This systematic review demonstrates that minimally invasive approaches to sagittal craniosynostosis vary widely in technique with respect to the incisions, osteotomies, and force therapy used. Additionally, the terminology employed in describing minimally invasive approaches is inconsistent across centers. This discrepancy between technique and terminology presents challenges for reporting and interpreting the increasing body of literature on this subject. We recommend standard terminology be used for future publications on minimally invasive techniques.

Antibiotic Use in Primary Palatoplasty: A Survey of Practice Patterns, Assessment of Efficacy, and Proposed Guidelines for Use.

Background: The literature provides no guidelines for antibiotic use in palatoplasty. The authors sought to ascertain practice patterns; review a large, single-surgeon experience, and propose guidelines for antibiotic use in primary palatoplasty. Methods: A six-question survey was e-mailed to all surgeons of the American Cleft Palate-Craniofacial Association. A retrospective study was also conducted of the senior author’s 10-year primary palatoplasty series, and two groups were studied. Group 1 received no antibiotics. Group 2 received preoperative and/or postoperative antibiotics. Results: Three hundred twelve of 1115 surgeons (28 percent) responded to the survey. Eighty-five percent administered prophylactic antibiotics, including 26 percent who used a single preoperative dose. A further 23 percent gave 24 hours of postoperative therapy; 12 percent used 25 to 72 hours, 16 percent used 4 to 5 days, and 12 percent used 6 to 10 days. Five percent of surgeons administered penicillin, 64 percent administered a first-generation cephalosporin, 13 percent administered ampicillin/sulbactam, and 8 percent gave clindamycin. The authors reviewed 311 patients; 173 receive antibiotics and 138 did not. Delayed healing and fistula rates did not differ between groups: 16.8 percent versus 15.2 percent (p = 0.71) and 2.9 percent versus 1.4 percent (p = 0.47), respectively. A single patient treated without antibiotics developed a postoperative bacteremia. This case did not meet the Centers for Disease Control definition of a surgical site infection, but the patient developed a palatal fistula. Conclusions: Antibiotic use in primary palatoplasty varies widely. The authors’ data support a clinician’s choice to forego antibiotic use; however, given the significance of palatal fistulae and the single case of postoperative streptococcal bacteremia, the study group recommends a single preoperative dose of ampicillin/sulbactam. Current evidence cannot justify the use of protracted antibiotic regimens. CLINICAL QUESTION/LEVEL OF EVIDENCE: Therapeutic, III.