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https://www.readbyqxmd.com/read/28630761/partial-proximal-tibia-fractures
#1
Michael J Raschke, Christoph Kittl, Christoph Domnick
Partial tibial plateau fractures may occur as a consequence of either valgus or varus trauma combined with a rotational and axial compression component.High-energy trauma may result in a more complex and multi-fragmented fracture pattern, which occurs predominantly in young people. Conversely, a low-energy mechanism may lead to a pure depression fracture in the older population with weaker bone density.Pre-operative classification of these fractures, by Müller AO, Schatzker or novel CT-based methods, helps to understand the fracture pattern and choose the surgical approach and treatment strategy in accordance with estimated bone mineral density and the individual history of each patient...
May 2017: EFORT open reviews
https://www.readbyqxmd.com/read/28629234/healing-of-osteochondral-defects-via-endochondral-ossification-in-an-ovine-model
#2
Helen Lydon, Alan Getgood, Frances M D Henson
OBJECTIVE: The objective of this study was to describe the mechanism of healing of osteochondral defects of the distal femur in the sheep, a commonly used translational model. Information on the healing mechanism be useful to inform the design of tissue engineering devices for joint surface defect repair. DESIGN: A retrospective study was conducted examining 7-mm diameter osteochondral defects made in the distal medial femoral condyle of 40 adult female sheep, comprising control animals from 3 separate structures...
June 1, 2017: Cartilage
https://www.readbyqxmd.com/read/28628579/distal-humeral-flexion-osteotomy-for-the-treatment-of-supracondylar-extension-type-malunions-in-children
#3
Sebastian Farr, Rudolf Ganger, Werner Girsch
Distal humeral extension-type malunions may occur as a complication following improper reduction of supracondylar humerus fractures. We evaluated results after distal humeral flexion osteotomies for sagittal realignment of the humeral condyle in children. Medical records and radiographs of all patients younger than 18 years of age, who underwent this procedure because of a clinically relevant lack of elbow flexion, were evaluated. In a cohort of 18 children with a mean age of 8 years at the time of surgery and a mean follow-up duration of 1 year, elbow flexion increased significantly from a mean of 101° preoperatively to 126° at the final follow-up; established radiographic parameters (e...
June 16, 2017: Journal of Pediatric Orthopedics. Part B
https://www.readbyqxmd.com/read/28620229/novel-bioactive-glass-based-injectable-bone-cement-with-improved-osteoinductivity-and-its-in-vivo-evaluation
#4
Tengjiao Zhu, Huihui Ren, Ailing Li, Bingchuan Liu, Caiyun Cui, Yanmei Dong, Yun Tian, Dong Qiu
Recently, more and more attention has been paid to the development of a new generation of injectable bone cements that are bioactive, biodegradable and are able to have appropriate mechanical properties for treatment of vertebral compression fractures (VCFs). In this study, a novel PSC/CS composite cement with high content of PSC (a phytic acid-derived bioactive glass) was prepared and evaluated in both vitro and vivo. The PSC/CS cement showed excellent injectability, good resistance to disintegration, radiopacity and suitable mechanical properties...
June 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28616392/catastrophic-complication-following-injection-and-extracorporeal-shock-wave-therapy-of-a-medial-femoral-condyle-subchondral-cystic-lesion-in-a-14-year-old-arabian-mare
#5
Darla K Moser, Mike J Schoonover, Kate M Sippel, Alix M Dieterly, Jerry W Ritchey, Corey R Wall
This report describes fibrous cyst lining injection and extracorporeal shock wave therapy (ESWT) of a medial femoral condyle (MFC) subchondral cystic lesion (SCL) resulting in catastrophic MFC fracture in an Arabian mare. The mare was presented for evaluation of a severe hind limb lameness of approximately 4 months duration. On presentation, a non-weight bearing lameness of the left hind limb with severe effusion and soft tissue swelling of the stifle region was noted. Radiographic evaluation of the stifle revealed a large SCL of the MFC with associated osteoarthritis...
2017: Open veterinary journal
https://www.readbyqxmd.com/read/28610821/superolateral-dislocation-of-the-intact-mandibular-condyle-report-of-a-rare-case-with-a-review
#6
N Srinath, D N Umashankar, C Naik, J Biradar
Dislocation of the temporomandibular joint, which represents 3% of all dislocated joints reported in the body, occurs when the mandibular condyle is displaced anteriorly beyond the articular eminence. Although anterior dislocation of the mandibular condyle is well documented in the literature, superior, lateral, and posterior dislocation of the condyle is rare. Only a few reports documenting superolateral dislocation with anterior mandible fractures have been published in the past. However such dislocations without any associated fractures are even rarer...
June 10, 2017: International Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28604551/the-periosteal-medial-femoral-condyle-free-flap-a-new-option-for-soft-tissue-reconstruction-of-the-distal-lower-extremity
#7
Noah H Saad, Matthew E Pontell, Brian S Winters, Joseph Daniel, Adam Saad
BACKGROUND: Small (<30 cm) soft tissue defects of the distal leg, foot, and ankle pose a complicated issue with regard to wound healing. Multiple flaps have been proposed for reconstruction of these wounds with varying levels of success. The medial femoral condyle flap is a free bone flap supplied by the descending geniculate artery. It is currently used in the treatment of fracture nonunion, infected bone defects, avascular necrosis, and osteoradionecrosis. This study proposes the use of the periosteal portion of the medial femoral condyle (PMFC) flap for soft tissue reconstruction of the distal leg, foot, and ankle...
June 9, 2017: Annals of Plastic Surgery
https://www.readbyqxmd.com/read/28600588/-open-reduction-and-internal-fixation-of-lateral-tibial-plateau-fractures-with-free-subchondral-2-7%C3%A2-mm-screws
#8
M Reul, F Johnscher, S Nijs, H Hoekstra
OBJECTIVES: Exact reconstruction of the depressed articular surface and stable subchondral fixation of the lateral tibial plateau (ORIF, "open reduction and internal fixation"). INDICATIONS: Tibial plateau fractures with involvement of the lateral column and depression of the articular surface. CONTRAINDICATIONS: Critical soft tissue. Severe osteoporosis. SURGICAL TECHNIQUE: Supine position, classical anterolateral approach, lateral submeniscal arthrotomy, visualisation of the fracture, osteotomy of the lateral tibial condyle...
June 9, 2017: Operative Orthopädie und Traumatologie
https://www.readbyqxmd.com/read/28595841/an-atypical-variant-of-superolateral-dislocation-of-the-mandibular-condyle-a-case-report
#9
Kapil Malik, Subhas C Debnath, Apurba K Adhyapok, Kriti Hazarika
Dislocation of the mandibular condyle from the glenoid fossa can occur in anterior, posterior, lateral, and superior directions. Posterior, lateral, and superior dislocations are rare. Superolateral dislocation is seldom encountered in clinical practice. It is generally associated with fracture of the anterior or contralateral side of the mandible. The occurrence of superolateral dislocation of the condyle hooked above the zygomatic arch with an associated fracture of the medial pole of the condyle is rare and has been reported only once in the literature...
May 15, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28585129/enhanced-biocompatibility-and-osseointegration-of-calcium-titanate-coating-on-titanium-screws-in-rabbit-femur
#10
Zi-Li Wang, Rong-Zhen He, Bin Tu, Xu Cao, Jin-Shen He, Han-Song Xia, Chi Liang, Min Zou, Song Wu, Zhen-Jun Wu, Kun Xiong
This study aimed to examine the biocompatibility of calcium titanate (CaTiO3) coating prepared by a simplified technique in an attempt to assess the potential of CaTiO3 coating as an alternative to current implant coating materials. CaTiO3-coated titanium screws were implanted with hydroxyapatite (HA)-coated or uncoated titanium screws into medial and lateral femoral condyles of 48 New Zealand white rabbits. Imaging, histomorphometric and biomechanical analyses were employed to evaluate the osseointegration and biocompatibility 12 weeks after the implantation...
June 2017: Journal of Huazhong University of Science and Technology. Medical Sciences
https://www.readbyqxmd.com/read/28580257/posterior-surgical-approach-to-the-knee
#11
Scott C Faucett, James Gannon, Jorge Chahla, Marcio B Ferrari, Robert F LaPrade
Posterior knee approaches are reliable techniques to address the treatment of various pathologies of the posterior region of the knee, including Baker cyst excision, tibial plateau fracture fixation, posterior cruciate ligament avulsions and inlay reconstructions, femoral condyle cartilage procedures, posterior meniscal repair and loose body removal among others. Surgery in the posterior knee region can be challenging because of the presence of neurovascular structures including the tibial nerve, popliteal artery and vein, and common peroneal nerve; thus, it is less commonly performed...
April 2017: Arthroscopy Techniques
https://www.readbyqxmd.com/read/28580255/arthroscopy-assisted-fabella-excision-surgical%C3%A2-technique
#12
Matthew T Provencher, George Sanchez, Márcio B Ferrari, Gilbert Moatshe, Jorge Chahla, Ramesses Akamefula, Robert F LaPrade
The fabella is an anatomic variant not seen in all individuals and can potentially be a source of chronic knee pain due to chondromalacia, osteoarthritis, fractures, or biomechanical pressure against the lateral femoral condyle. It is situated intra-articular, close to the lateral femoral condyle, the lateral gastrocnemius head tendon, and the fabellofibular ligament. Given its rarity, the diagnosis of a symptomatic fabella is often overlooked when evaluating patients with persistent posterolateral knee pain...
April 2017: Arthroscopy Techniques
https://www.readbyqxmd.com/read/28576701/relevance-of-mri-for-management-of-non-displaced-lateral-humeral-condyle-fractures-in-children
#13
C Thévenin-Lemoine, S Salanne, T Pham, F Accadbled, C Baunin, J Sales De Gauzy
INTRODUCTION: The treatment for non-displaced (<2 mm displacement) fractures of the lateral humeral condyle in children is controversial. Most studies recommend non-surgical treatment. However, plain radiographs are not sufficient to evaluate extension of the fracture line through the articular cartilage. This explains the high frequency of secondary displacements and non-unions, despite well-conducted conservative treatment. We hypothesized that MRI could be used to analyse whether the fracture is complete or incomplete...
May 30, 2017: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://www.readbyqxmd.com/read/28570407/a-modified-external-fixator-system-in-treatment-of-mandibular-condylar-fractures
#14
Piero Cascone, Fabrizio Spallaccia, Paolo Arangio, Valentino Vellone, Matteo Gualtieri
The purpose of this study is to evaluate patient's outcomes after condylar fractures treated with the modified external fixation system from 2008 to 2012.A group of 58 patients with unilateral and bilateral fractures of mandibular condyle was admitted in the authors' study.The final sample included a total of 44 patients, 24 males (54.6%) and 20 females (45.4%).The remaining 14 (24%) patients were excluded because they did not fulfill all the criteria requested.After 12 months from surgery, the functional-clinical evaluation of mouth's maximum opening and mostly extent of lateral excursion and of protrusion showed the following results: 8% of the sample showed a maximum mouth opening <30 mm, 72% of the sample showed a maximum mouth opening between 30 and 40 mm, 20% of the sample showed a maximum mouth opening >40 mm lateral excursion (contralateral to fracture) and protrusion was respectively of 9...
May 31, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28554104/capitellar-fracture-with-bony-avulsion-of-the-lateral-collateral-ligament-in-a-child-case-report
#15
M Fuad, A Elmhiregh, A Motazedian, M Bakdach
INTRODUCTION: Isolated capitellar fracture is a rare injury accounting for 1% of all elbow fractures Bryan and Morrey (1985) and Poynton et al. (1998). In children, a fall on an outstretched hand, before the fusion of the epiphysis, usually leads to lateral condyle physeal fractures. Very few cases of capitellar fractures in the paediatric population have been reported. PRESENTATION OF CASE: Our patient, a 9-year-old girl presented with a capitellar fracture and lateral collateral ligament (LCL) avulsion of her left elbow...
2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28549780/patient-specific-pointer-tool-for-corrective-osteotomy-quality-of-symmetry-based-planning-and-case-study-of-ulnar-reconstruction-surgery
#16
Samuel Mueller, Lueder A Kahrs, Johannes Gaa, Tobias Ortmaier, Jan-Dierk Clausen, Christian Krettek
Malunion after forearm fractures are described to appear in 2% to 10% of cases. Reconstructive surgeries ensure adequate anatomical repositioning. Their importance derives from the fact that malunion can often lead to severe pain as well as deformities causing loss of function and aesthetic issues not only in the forearm, but also the wrist and elbow joint. In this paper a clinical case will be presented using a Patient Specific Instrument (PSI) as navigational aid for reconstructive surgery after malunion of a proximal ulnar fracture combined with allograft surgery of the radial head and radial condyle due to chronic traumatic radial head luxation (Monteggia fracture)...
May 11, 2017: Injury
https://www.readbyqxmd.com/read/28538289/a-three-dimensional-analysis-of-the-fracture-planes-in-pediatric-lateral-humeral-condyle-fractures-for-image-based-pin-positioning-during-fixation
#17
Do Young Park, Jae Ho Cho, Doo-Hyung Lee, Wan-Sun Choi, Jun Young Bang, Xiang Yun Yin
OBJECTIVE: To determine the 3 dimensional morphology of pediatric lateral condylar physeal fractures using 3-dimensional computed tomography (3D-CT) and to identify optimal pin positions for percutaneous pinning. DESIGN: Prospective case series of consecutively treated patients SETTING:: Tertiary university hospital setting. PATIENTS: Preoperative 3D-CTs in pediatric surgical candidates diagnosed with lateral condylar physeal fractures INTERVENTION:: Closed reduction and percutaneous pinning was performed...
May 17, 2017: Journal of Orthopaedic Trauma
https://www.readbyqxmd.com/read/28516447/metacarpophalangeal-joint-injury-patterns-on-magnetic-resonance-imaging-a-comparison-in-racing-standardbreds-and-thoroughbreds
#18
Julien Olive, Nicolas Serraud, Thibault Vila, Jean-Philippe Germain
The metacarpal condyle has received extensive attention as a predominant site of overload arthropathy in racehorses. However, detailed descriptions of MRI lesion patterns for the metacarpophalangeal joint and comparisons between types of racing horses are currently lacking. Aims of this retrospective, cross-sectional study were to describe and compare standing low-field magnetic resonance findings in the metacarpophalangeal joints for groups of Standardbreds and Thoroughbreds using systematic semiquantitative scores...
May 17, 2017: Veterinary Radiology & Ultrasound
https://www.readbyqxmd.com/read/28512850/in-situ-handheld-3d-bioprinting-for-cartilage-regeneration
#19
Claudia Di Bella, Serena Duchi, Cathal D O'Connell, Romane Blanchard, Cheryl Augustine, Zhilian Yue, Fletcher Thompson, Christopher Richards, Stephen Beirne, Carmine Onofrillo, Sebastien H Bauquier, Stewart D Ryan, Peter Pivonka, Gordon G Wallace, Peter F Choong
Articular cartilage injuries experienced at an early age can lead to the development of osteoarthritis later in life. In situ 3D printing is an exciting and innovative bio-fabrication technology that enables the surgeon to deliver tissue- engineering techniques at the time and location of need. We have created a hand- held 3D printing device (Biopen) that allows the simultaneous co-axial extrusion of bioscaffold and cultured cells directly into the cartilage defect in vivo in a single session surgery. This pilot study assesses the ability of the Biopen to repair a full thickness chondral defect and the early outcomes in cartilage regeneration, and compares these results to other treatments in a large animal model...
May 17, 2017: Journal of Tissue Engineering and Regenerative Medicine
https://www.readbyqxmd.com/read/28497104/stress-fracture-of-the-lateral-femoral-condyle-after-total-knee-arthroplasty
#20
Mohammad M Sarzaeem, Mahmood Jabalameli
BACKGROUND: This is to assess one of the rare complications after total knee replacement and to assess risk factors of failure. METHODS: 11 patients with varus knee and an average age of 67 years underwent TKA between 2005 and 2013. All patients returned with a sudden sharp knee pain, disability to walk and significant decrease in ROM about 4 to 8 weeks after surgery. Radiographic examination revealed a lateral femoral condylar stress fracture. RESULTS: After analyzing the images, we found common characteristics among all patients, which might be attributable to the later fracture including varus deformity>25, femoral component lateralization, and valgus correction...
March 2017: Archives of Bone and Joint Surgery
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