Management of Distal Tibial Interosseous Osteochondroma: A Case Series and Review of Literature.

The interosseous part of the distal tibia is one of the regions in which osteochondroma can occur. Osteochondroma typically occurs among growing children and causes gradual ankle deformity by its pressure effect on the fibula. We presented six patients (Five boys and one girl with median age of 13 years old) with distal tibial interosseous osteochondroma. They were treated by a 180̊ fibular osteotomy around its longitudinal axis just proximal and distal to the lesion. All patients were treated without any complication except for one who developed non-union of the site of the fibular osteotomy. In the last follow-up, all the patients were pain-free, and no recurrence was reported. Various methods have been described for resecting interosseous osteochondroma of the distal tibia, with or without fibular osteotomy and with or without acute correction of ankle deformity during resection surgery. Still, there is no consensus over the best method for resecting such lesions.

Prevalence and Predictors of Peroneal Tendon Instability Accompanying Calcaneal Fractures.

BACKGROUND: We aimed to find the prevalence of peroneal tendon instability (PTI) accompanying different types of calcaneal fractures and to determine predictors of PTI based on preoperative CT scanning. METHODS: In a retrospective cross-sectional study, preoperative CT scans of 400 consecutive calcaneal fractures undergoing surgery were reviewed for comminuted fragments in the lateral gutter of the ankle, fractures at the tip of the lateral malleolus, dislocated peroneal tendons, excessive displacement of the lateral calcaneal wall, calcaneal fracture-dislocation, superior peroneal retinaculum (SPR) avulsion fracture (fleck sign), and shape of the retromalleolar groove. The correlation of these variables with intraoperative SPR stress test, defined as the diagnostic criteria for PTI in calcaneal fractures, was evaluated. RESULTS: In total, 369 patients (mean age, 39 ± 13; range, 11-72 years), with 321 (87.0%) of them male, were included. Among all calcaneal fractures, 67 cases (16.7%) had associated PTI as confirmed intraoperatively by an SPR stress test. A statistically significant association was found between PTI in calcaneal fractures and comminuted fragments in the lateral gutter of the ankle (P = .03), dislocated peroneal tendons (P < .001), calcaneal fracture-dislocation (P < .001), SPR avulsion fracture (P < .001), and Sanders type IV of calcaneal fracture (P = .02). There was no statistically significant relationship between PTI and the mechanism of injury (P = .98), side of fracture (P = .30), uni- or bilateral calcaneal fractures (P = .27), a fracture at the tip of lateral malleolus (P = .69), shape of the retromalleolar groove (P = .78), or excessive displacement of the lateral calcaneal wall (P = .06). The most specific CT finding to predict PTI accompanying calcaneal fractures was calcaneal fracture-dislocation (99.1%). CONCLUSION: Following calcaneal fracture fixation, PTI was confirmed with intraoperative SPR stress test in one-sixth of cases. With the exception of calcaneal fracture-dislocation, preoperative findings on CT scanning and calcaneal fracture pathoanatomy are insufficient to diagnose PTI accompanying calcaneal fractures. LEVEL OF EVIDENCE: Level III, retrospective case control study.

Total Knee Arthroplasty with Non-Stemmed Tibial Components among Obese Patients: Clinical and Radiologic Evaluation and Review of Literature.

Objective: This study aimed to evaluate the radiologic and clinical outcomes of TKA with non-stemmed tibial components in relation to their body mass index (BMI). Methods: In this retrospective cohort study, the outcome of TKA with non-stemmed tibial components based on their BMI was evaluated (BMI<30 vs. BMI≥30). The patients' function was assessed using the International Knee Documentation Committee (IKDC) and Lysholm knee questionnaires. Radiologic evaluation for probable signs of loosening was performed using two quantitative scoring systems by Ewald and Bach et al. Moreover, we reviewed the current literature on the application of non-stemmed tibial components in obese patients. Results: Twenty-one patients (two men and 19 women) with BMI≥30 and a mean age of 65.1±9.5 years, and 22 patients (three men and 19 women) with BMI<30 and a mean age of 63.6±8.5 years were studied. The mean follow-up periods with BMI≥30 (47.0±19.8 months) and BMI<30 (49.2±18.7 months) were comparable (p=0.618). No patients in either group experienced clinical loosening. Besides, none of the patients had any kind of revision surgery. The patients in both BMI groups had comparable IKDC scores (both the total score and its sub-scores; p>0.05). Furthermore, the total Lysholm knee scores were similar in both groups (p=0.122). Using both scoring systems, the peri-prosthetic bone radiolucency near the tibial components was similar in both groups (p>0.999). Conclusion: The present study found no significant difference in the radiologic or clinical outcome of non-stemmed TKA in patients with BMIs under and over 30.

Simultaneous Pantalar Dislocation and Bimalleolar Ankle Fracture.

A 17-year-old boy presented with a totally dislocated talus and open bimalleolar ankle fracture dislocation. After thorough debridement and irrigation, the talus and bimalleolar fracture were reduced and fixed. At 21 months after surgery, he could walk using regular shoes without any aid but with moderate pain in the sinus tarsi during activities. No evidence of osteonecrosis or infection was seen in the last radiograph, except for a small degree of narrowing in the talonavicular joint. Reimplantation and fixation of pantalar dislocation seems to have an acceptable outcome.

Agreement between Sanders classification of intraarticular calcaneal fractures and assessment during the surgery.

BACKGROUND: Sanders classification, based on the number of displaced fractured fragments of posterior facet, can predict the prognosis of calcaneal intraarticular fractures. The aim of the study was assessing not only intraobserver reproducibility and interobserver reliability of Sanders classification but also the agreement between preoperative reported types based on computed tomography (CT) scan and direct observation during the surgery. METHODS: In this cross-sectional study, preoperative CT scans of 100 patients with intra-articular calcaneal fracture operated by a single surgeon were studied by two orthopedic and trauma surgeons (A & B), twice with an interval of three weeks. Their result were compared with each other and with the number of displaced fractured fragments recorded in the operation notes. Quadratic weighted kappa test was used to check the agreement between two observers and between the observers and the surgeon. RESULTS: Intraobserver reproducibility for Sanders classification of intraarticular calcaneal fractures was found to be good to excellent (A1-A2: 0.91 and B1-B2: 0.75). There was a moderate agreement between the two observers (A1-B1: 0.56, A1-B2:0.58, A2-B1:0.48, and A2-B2:0.51). The agreement between reported types of Sanders classification and the number of displaced fractured fragments seen during the surgery was fair (A1-surgeon: 0.27, A2-surgeon: 0.29, B1-surgeon: 0.38, and B2-surgeon: 0.50). CONCLUSIONS: Agreement between Sanders classification and what is real during surgery is fair. Hence, Sanders classification as determined in the widest cut of coronal CT scan extended posteriorly should be cautiously interpreted for surgery.

Xanthogranulomatous Osteomyelitis of the Tibia.

Background: Xanthogranulomatous osteomyelitis (XO) is a rare chronic inflammatory process that is histologically characterized by the presence of foamy macrophages, histiocytes, and plasma cells. Radiologic and gross examinations can mimic malignancy, so definitive diagnosis should be made by histopathologic evaluation. Case Report: A 15-year-old male presented with pain in the proximal right leg for 2 weeks prior to admission. The patient had a history of leg trauma 3 years prior that was responsive to as-needed analgesics. Laboratory data revealed increased erythrocyte sedimentation rate and C-reactive protein. X-ray of the right tibia showed a periosteal reaction and bulging of bone with a questionable destruction of the cortex. Magnetic resonance imaging demonstrated an expansile bony lesion in the proximal metaphysis of the tibia. Histopathologic examination showed the bone trabecula surrounded by chronic inflammatory cells and a fragment of dead bone surrounded by histiocytes, foamy macrophages, and plasma cells. The pathologist confirmed the diagnosis of XO. Wound culture proved moderate growth of Staphylococcus aureus, and treatment with cefazolin and cephalexin was successful. Conclusion: The patient was not treated with the routine therapy used in previously reported cases (curettage), suggesting that antibiotic therapy should be considered before employing surgical interventions for XO.

Incredible position of broken sliding dynamic hip screw implant in the medial of thigh.

We report a case with implant failure after nailing of an unstable pertrochanteric fracture with dynamic hip screw. The patient presented with a medial sided thigh pain at 5 years after the surgery. Plain radiographs showed nonunion of the fracture with distant migration of assembled hip screw and side plate to the subcutaneous area of the inner thigh.

Can ethanol be used as an adjuvant to extended curettage in order to reduce the recurrence rate of aneurysmal bone cyst?

OBJECTIVE: The best treatment of aneurysmal bone cyst (ABC) is still unclear. This study aimed to evaluate the usefulness of extended curettage and ethanol as an adjuvant to reduce local recurrence of ABCs. METHODS: Retrospectively, 68 cases treated for primary and secondary ABCs caused by benign tumors from 2003 to 2013 were enrolled to a follow-up visit between one to ten years after the surgery. The treatment protocol was en-bloc resection, biopsy and curettage, extended curettage consisted of curettage, high-speed burring, ethanol 96%, and electrocauterization (combined four-step alcohol-using approach) followed by defect filling, consecutively. RESULTS: Among 36 patients with primary ABCs (16 male, 20 female, mean age of 16 years, range 3-46 years), 29 cases were treated with the combined four-step alcohol-using approach, four patients with resection, and three with biopsy and curettage. Thirty-two cases had secondary ABCs on benign lesions (17 male, 15 female). The recurrence rate was 5.88 in all primary and secondary ABC cases; two recurrences among 29 patients with primary ABCs (6.9%) and one recurrence among the 22 cases with secondary ABCs (4.5%). CONCLUSIONS: It could be suggested that the combined four-step alcohol-using approach may result in a very low recurrence rate of primary and secondary ABC lesions.

OBJETIVO: Ainda não se sabe qual o melhor tratamento para cistos ósseos aneurismáticos (COA). Este estudo teve como objetivo avaliar a utilidade da curetagem estendida e do etanol como adjuvante para reduzir a reincidência local de COAs. MÉTODOS: Retrospectivamente, 68 casos que receberam tratamento para COAs primários e secundários causados por tumores benignos entre 2003 e 2013 foram chamados para uma consulta de seguimento, em um intervalo entre um e dez anos após a cirurgia. O protocolo de tratamento foi ressecção em bloco, biópsia e curetagem; a curetagem estendida consistiu em curetagem, broqueamento em alta velocidade, etanol 96% e eletrocauterização (abordagem combinada em quatro etapas usando álcool), seguida do preenchimento do defeito, de forma consecutiva. RESULTADOS: Entre os 36 pacientes com COAs primárias (16 do sexo masculino, 20 do sexo feminino, idade média de 16 anos, intervalo 3-46 anos), 29 casos foram tratados com a abordagem combinada em quatro etapas usando álcool, quatro pacientes com ressecção e três com biópsia e curetagem. Trinta e dois casos apresentavam COAs secundárias em lesões benignas (17 do sexo masculino, 15 do sexo feminino). A taxa de reincidência foi de 5,88 em todos os casos de COAs primárias e secundárias; duas reincidências foram observadas entre 29 pacientes com COAs primária (6,9%) e uma reincidência entre os 22 casos (4,5%) de COAs secundária. CONCLUSÃO: Sugere-se que a abordagem combinada em quatro etapas usando álcool pode resultar em uma taxa de reincidência muito baixa em lesões COAs primárias e secundárias.

Can ethanol be used as an adjuvant to extended curettage in order to reduce the recurrence rate of aneurysmal bone cyst? / O etanol pode ser usado como adjuvante na curetagem ampla a fim de reduzir a taxa de reincidência de cisto ósseo aneurismático?

ABSTRACT OBJECTIVE: The best treatment of aneurysmal bone cyst (ABC) is still unclear. This study aimed to evaluate the usefulness of extended curettage and ethanol as an adjuvant to reduce local recurrence of ABCs. METHODS: Retrospectively, 68 cases treated for primary and secondary ABCs caused by benign tumors from 2003 to 2013 were enrolled to a follow-up visit between one to ten years after the surgery. The treatment protocol was en-bloc resection, biopsy and curettage, extended curettage consisted of curettage, high-speed burring, ethanol 96%, and electrocauterization (combined four-step alcohol-using approach) followed by defect filling, consecutively. RESULTS: Among 36 patients with primary ABCs (16 male, 20 female, mean age of 16 years, range 3-46 years), 29 cases were treated with the combined four-step alcohol-using approach, four patients with resection, and three with biopsy and curettage. Thirty-two cases had secondary ABCs on benign lesions (17 male, 15 female). The recurrence rate was 5.88 in all primary and secondary ABC cases; two recurrences among 29 patients with primary ABCs (6.9%) and one recurrence among the 22 cases with secondary ABCs (4.5%). CONCLUSIONS: It could be suggested that the combined four-step alcohol-using approach may result in a very low recurrence rate of primary and secondary ABC lesions.

RESUMO OBJETIVO: Ainda não se sabe qual o melhor tratamento para cistos ósseos aneurismáticos (COA). Este estudo teve como objetivo avaliar a utilidade da curetagem estendida e do etanol como adjuvante para reduzir a reincidência local de COAs. MÉTODOS: Retrospectivamente, 68 casos que receberam tratamento para COAs primários e secundários causados por tumores benignos entre 2003 e 2013 foram chamados para uma consulta de seguimento, em um intervalo entre um e dez anos após a cirurgia. O protocolo de tratamento foi ressecção em bloco, biópsia e curetagem; a curetagem estendida consistiu em curetagem, broqueamento em alta velocidade, etanol 96% e eletrocauterização (abordagem combinada em quatro etapas com álcool), seguida do preenchimento do defeito, de forma consecutiva. RESULTADOS: Entre os 36 pacientes com COAs primárias (16 do sexo masculino, 20 do feminino, média de 16 anos, intervalo 3-46), 29 casos foram tratados com a abordagem combinada em quatro etapas com álcool, quatro pacientes com ressecção e três com biópsia e curetagem; 32 casos apresentavam COAs secundárias em lesões benignas (17 do sexo masculino, 15 do feminino). A taxa de reincidência foi de 5,88 em todos os casos de COAs primárias e secundárias; duas reincidências foram observadas entre 29 pacientes com COAs primária (6,9%) e uma reincidência entre os 22 casos (4,5%) de COAs secundária. CONCLUSÃO: Sugere-se que a abordagem combinada em quatro etapas com álcool pode resultar em uma taxa de reincidência muito baixa em lesões COAs primárias e secundárias.

Simultaneous middle third clavicle fracture and type 3 acromioclavicular joint dislocation; a case report.

Simultaneous middle third clavicle fracture and acromioclavicular joint dislocation is a rare combination injury, as a result of high-energy trauma. We report a patient with a middle third clavicle fracture and ipsilateral grade three-acromioclavicular joint dislocation, which is a rare combination. The patient wanted to get back to work as soon as possible, so the fracture was fixed with reconstruction plate after open reduction and plate contouring; and acromioclavicular joint dislocation was reduced and fixed with two full threaded cancellous screws. One screw was inserted through the plate to the coracoid process. Clinical and radiographic finding revealed complete union of clavicle fracture and anatomical reduction of acromioclavicular joint with pain free full joint range of motion one year after operation.

sCD30 and sCD40L detection in patients with osteosarcoma, chondrosarcoma and Ewing sarcoma.

BACKGROUND: Primary malignant bone tumors are heterogeneous groups of neoplasms, which affect mainly children and adolescents. The most common types are Osteosarcoma, Ewing sarcoma and chondrosarcoma. Elevation of sCD30 and sCD40L has been observed in lymphoma, leukemia and autoimmune disorders. OBJECTIVE: To evaluate serum concentrations of sCD30 and sCD40L in patients with primary malignant bone tumors. METHOD: Fifty-four cases (31 Osteosarcomas, 14 Ewing sarcomas, and 9 Chondrosarcomas) and 54 healthy controls enrolled in this study. Cases with the history of prior treatment (surgery, chemotherapy and radiotherapy) were excluded from the study. Serum levels of sCD30 and sCD40L were detected by an enzyme linked immunosorbent assay (ELISA). RESULTS: Mean serum concentration of sCD30 in Ewing sarcoma was significantly higher than that of the control groups (p=0.007), but mean serum concentrations of sCD30 in osteosarcoma and chondrosarcoma groups were not significantly different, compared to the controls (p=0.41 and p=0.11, respectively). Mean serum concentrations of sCD40L in osteosarcoma, Ewing sarcoma and chondrosarcoma groups were significantly higher than that of the control group (p<0.0001). In addition, the mean serum level of sCD40L in chondrosarcoma patients was higher than that of both Ewing sarcoma and osteosarcoma groups (p<0.001). CONCLUSION: sCD30 and sCD40L increase in primary bone tumors; however the significant of these findings for diagnosis or prognosis of these tumors needs further investigation.

The effect of open Bristow-Latarjet procedure for anterior shoulder instability: a 10-year study.

Operative procedures are the usual treatment for patients with anterior traumatic shoulder instabilities. Soft tissue procedures, Bankart repair, cannot be performed in some patients. They need Bristow-Latarjet one. We decided to determine midterm results of this procedure in almost all types of anterior shoulder instability, even shoulders with Bankart lesion in non-athletic cases. Thirty patients after Bristow-Latarjet procedure from 1997 to 2007 were followed 2-8 years. Clinical outcomes, consisted of muscle strength, range of motion (mean 8.66 degrees decreased in external rotation with arm in neutral position and 18.33 with arm in 90 degrees of abduction), recurrent instability (no relapse), and Rowe score (mean 77.66) showed good to excellent results. We had no screw-related or neurovascular complications. Thirty percent of cases had signs of mild arthropathy. Although Bankart procedure is the preferred method in patients with isolated Bankart lesion, but we can perform Bristow-Latarjet for all types of anterior traumatic shoulder instability in non-athletics cases with acceptable results.

Epidemiology of musculoskeletal tumors in Shiraz, south of Iran.

BACKGROUND: Musculoskeletal tumors are rare, but their descriptive data in any region are important to reduce mortality rate and improve their management. MATERIALS AND METHODS: Retrospectively, 426 pathologic reports from 1997 to 2008 were reviewed in Shiraz University Orthopedic Hospitals which are the main referral centers for musculoskeletal tumors in south of Iran. We collected and analyzed data on age, gender, anatomical site, and histopathologic types of musculoskeletal tumors. RESULTS: Of the 426 cases, 60.1% were men and 39.9% were women. The commonest malignant bone tumors were osteosarcoma (89; 50.6%), metastasis (30; 17.0%), Ewing's sarcoma (28; 15.9%), and chondrosarcoma (14; 8.0%). The most frequent benign bone tumors were osteochondroma (136; 63.9%), enchondroma (23; 10.8%), giant cell tumor (21; 9.9%), and osteoid osteoma (14; 6.6%). The femur was the most commonly involved site in musculoskeletal tumors. It was followed by the tibia in benign tumors and the humerus in malignant ones. Metastasis (28; 32.6%), soft tissue tumors (18; 20.9%), osteochondroma (10; 11.6%), and osteosarcoma (9; 10.5%) were the most diagnosed bone lesions in patients older than 40. CONCLUSION: There are no significant changes in epidemiology of musculoskeletal tumors in Shiraz, south of Iran, in comparison with other parts of the world.

Strategies in evaluation and management of Bam earthquake victims.

BACKGROUND: On 26 December 2003, an earthquake measuring 6.5 on the Richter scale occurred in the city of Bam in southeastern Iran. Bam was destroyed completely, > 43,000 people were killed, and 30,000 were injured. The national and international responses were quick and considerable. Many field hospitals were created and large numbers of patients were evacuated from their homes and transported to hospitals throughout Iran. Nearly 700 patients were transferred to Chamran hospital in Shiraz within the first 48 hours after the earthquake. METHODS: This is a retrospective study based on the medical records of earthquake casualties dispatched to Chamran Hospital. A screening tunnel composed of multiple stations was prepared before patients entered to facilitate the large influx of patients. Each of the victims was passed through this screening tunnel and assigned into one of three groups: (1) those needing emergency surgical intervention; (2) those needing less urgent surgery; and (3) those needing elective operations, supportive care, observation, and/or rehabilitation. RESULTS: Among the 708 patients, 392 were male (male/female ratio: 1.24) with a mean value of their ages of 30.5 years. (range: 1.5 months-70 years). Extremity fractures (136, 19%) were more common than were axial skeleton fractures (28, 4%). Out of the total 708 patients, 152 (21.5%) patients needed emergency operations, 26 (4%) needed less urgent surgery, and 530 (74.5%) required wound care or antibiotic therapy and other forms of supportive care. Some complications occurred, such as two patients with compartment syndromes of the leg, three required below-the-knee amputation, eight suffered acute renal failure, two developed fat emboli syndrome, and one had a brain injury that resulted in death. CONCLUSION: A comprehensive disaster plan is required to ensure a prompt disaster response and coordinated management of a multi-casualty incident. This can influence the outcomes of patients directly. A patient screening tunnel has advantages in rapid and effective evaluation and management of victims in any multi-casualty incident.