scholarly journals Zentrale Zugseilsysteme – vollautomatische, kontinuierliche Kallusdistraktion zur Behandlung langstreckiger Knochendefekte / Bone Transport System with a Central Cable – Fully Automatic, Continuous Distraction Osteogenesis for the Treatment of Large Bone Defects

2004 ◽  
Vol 49 (7-8) ◽  
pp. 202-207 ◽  
Author(s):  
R Baumgart ◽  
S Hinterwimmer ◽  
M Krammer ◽  
W Mutschler
Keyword(s):  
Transport System ◽  
Distraction Osteogenesis ◽  
Bone Defects ◽  
Bone Transport ◽  
Fully Automatic ◽  
Large Bone ◽  
Large Bone Defects

Bone Transport Osteogenesis for Limb Salvage

2000 ◽  
Vol 13 (01) ◽  
pp. 18-22 ◽  
Author(s):  
M. Degna ◽  
A. Feretti ◽  
P. Buracco ◽  
Nicole Ehrhart
Keyword(s):  
Surgical Technique ◽  
Limb Salvage ◽  
Tumor Resection ◽  
Bone Defects ◽  
Bone Transport ◽  
Successful Outcome ◽  
Strict Adherence ◽  
Initial Learning ◽  
Large Bone ◽  
Large Bone Defects

Six dogs with osteosarcoma of the radius were treated by local resection and limb salvage using bone transport osteogenesis. One case is described in detail. Although the initial learning curve is steep for this technique, strict adherence to oncologic surgical technique and the principles of Ilizarov can lead to a successful outcome. Bone transport shows promise as an alternative to cortical allografts for reconstruction of large bone defects after tumor resection in the canine radius.

scholarly journals MEMBRANE INDUCED OSTEOGENESIS (MASQUELET TECHNIQUE) VERSUS BONE TRANSPORT IN MANAGEMENT OF LARGE BONE DEFECTS OF THE LOWER LIMB

2020 ◽  
Vol 71 (1) ◽  
pp. 161-170
Author(s):  
Salah Abou-Seif ◽  
Mootaz Thakeb ◽  
Ahmed Yousry ◽  
Mahmoud Mahran ◽  
Tamer Fayyad ◽  
...  
Keyword(s):  
Lower Limb ◽  
Bone Defects ◽  
Bone Transport ◽  
Masquelet Technique ◽  
Large Bone ◽  
Large Bone Defects

scholarly journals Bone transport for reconstruction of large bone defects after tibial tumor resection: a report of five cases

2018 ◽  
Vol 46 (8) ◽  
pp. 3219-3225 ◽  
Author(s):  
Zhengming Yang ◽  
Huimin Tao ◽  
Zhaoming Ye ◽  
Libin Jin ◽  
Nong Lin ◽  
...  
Keyword(s):  
Clinical Efficacy ◽  
Tumor Resection ◽  
Bone Defects ◽  
Bone Transport ◽  
Malignant Schwannoma ◽  
Transport Time ◽  
Musculoskeletal Tumor Society ◽  
Large Bone ◽  
Average Bone ◽  
Large Bone Defects

This study was performed to explore the clinical efficacy of bone transport using external fixation for treatment of large bone defects after tibial tumor resection in five patients. Bone transport started 14 days postoperatively at 1 mm/day and was adjusted according to the callus-to-diameter ratio. The bone transport time, bone graft fusion, relapse, and metastasis were recorded. Clinical efficacy was evaluated using the Musculoskeletal Tumor Society (MSTS) scoring system. The tumors included osteosarcoma (n=2), Ewing sarcoma (n=1), malignant schwannoma (n=1), and hemangioma (n=1). The average bone defect length after resection was 11.6 cm. The five patients were followed up for an average of 50.8 months, and the average bone transport time was 15.5 months. Three patients who underwent postoperative chemotherapy were followed for 22.7 months, and two who did not undergo chemotherapy were followed for 4.75 months. Four patients underwent iliac bone grafting, and one underwent vascular pedicle fibular transplantation. The average MSTS score was 21.2 (19.3 for patients who underwent chemotherapy and 24.0 for patients who did not). No relapse or metastasis was observed. Bone transport is effective for reconstruction of large bone defects after tibial tumor resection as well as tibial malignancies with high doses of chemotherapy.

scholarly journals Outcome of distraction osteogenesis by ring fixator in infected, large bone defects of tibia

2016 ◽  
Vol 7 ◽  
pp. 201-209 ◽  
Author(s):  
Rajesh Rohilla ◽  
Karan Siwach ◽  
Ashish Devgan ◽  
Roop Singh ◽  
Jitendra Wadhwani ◽  
...  
Keyword(s):  
Distraction Osteogenesis ◽  
Bone Defects ◽  
Ring Fixator ◽  
Large Bone ◽  
Large Bone Defects

scholarly journals Factors related to large bone defects of bipolar lesions and a high number of instability episodes with anterior glenohumeral instability

2021 ◽  
Vol 16 (1) ◽  
Author(s):  
Noboru Matsumura ◽  
Kazuya Kaneda ◽  
Satoshi Oki ◽  
Hiroo Kimura ◽  
Taku Suzuki ◽  
...  
Keyword(s):  
Humeral Head ◽  
Glenohumeral Joint ◽  
Three Dimensional ◽  
Clinical Results ◽  
Bone Defects ◽  
Symptom Duration ◽  
Glenohumeral Instability ◽  
Explanatory Variables ◽  
Large Bone ◽  
Large Bone Defects

Abstract Background Significant bone defects are associated with poor clinical results after surgical stabilization in cases of glenohumeral instability. Although multiple factors are thought to adversely affect enlargement of bipolar bone loss and increased shoulder instability, these factors have not been sufficiently evaluated. The purpose of this study was to identify the factors related to greater bone defects and a higher number of instability episodes in patients with glenohumeral instability. Methods A total of 120 consecutive patients with symptomatic unilateral instability of the glenohumeral joint were retrospectively reviewed. Three-dimensional surface-rendered/registered models of bilateral glenoids and proximal humeri from computed tomography data were matched by software, and the volumes of bone defects identified in the glenoid and humeral head were assessed. After relationships between objective variables and explanatory variables were evaluated using bivariate analyses, factors related to large bone defects in the glenoid and humeral head and a high number of total instability episodes and self-irreducible dislocations greater than the respective 75th percentiles were evaluated using logistic regression analyses with significant variables on bivariate analyses. Results Larger humeral head defects (P < .001) and a higher number of total instability episodes (P = .032) were found to be factors related to large glenoid defects. On the other hand, male sex (P = .014), larger glenoid defects (P = .015), and larger number of self-irreducible dislocations (P = .027) were related to large humeral head bone defects. An increased number of total instability episodes was related to longer symptom duration (P = .001) and larger glenoid defects (P = .002), and an increased number of self-irreducible dislocations was related to larger humeral head defects (P = .007). Conclusions Whereas this study showed that bipolar lesions affect the amount of bone defects reciprocally, factors related to greater bone defects differed between the glenoid and the humeral head. Glenoid defects were related to the number of total instability episodes, whereas humeral head defects were related to the number of self-irreducible dislocations.

scholarly journals Vascularization of Nanohydroxyapatite/Collagen/Poly(L-lactic acid) Composites by Implanting Intramuscularly In Vivo

2014 ◽  
Vol 2014 ◽  
pp. 1-5 ◽  
Author(s):  
Hai Wang ◽  
Xiao Chang ◽  
Guixing Qiu ◽  
Fuzhai Cui ◽  
Xisheng Weng ◽  
...  
Keyword(s):  
Lactic Acid ◽  
Orthopaedic Surgery ◽  
Bone Substitutes ◽  
Bone Defects ◽  
Large Defect ◽  
Natural Bone ◽  
Composition And Structure ◽  
Large Bone ◽  
Large Bone Defects

It still remains a major challenge to repair large bone defects in the orthopaedic surgery. In previous studies, a nanohydroxyapatite/collagen/poly(L-lactic acid) (nHAC/PLA) composite, similar to natural bone in both composition and structure, has been prepared. It could repair small sized bone defects, but they were restricted to repair a large defect due to the lack of oxygen and nutrition supply for cell survival without vascularization. The aim of the present study was to investigate whether nHAC/PLA composites could be vascularized in vivo. Composites were implanted intramuscularly in the groins of rabbits for 2, 6, or 10 weeks (n=5×3). After removing, the macroscopic results showed that there were lots of rich blood supply tissues embracing the composites, and the volumes of tissue were increasing as time goes on. In microscopic views, blood vessels and vascular sprouts could be observed, and microvessel density (MVD) of the composites trended to increase over time. It suggested that nHAC/PLA composites could be well vascularized by implanting in vivo. In the future, it would be possible to generate vascular pedicle bone substitutes with nHAC/PLA composites for grafting.

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