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https://www.readbyqxmd.com/read/28101590/-minimally-invasive-treatment-of-intra-articular-calcaneal-fractures-with-the-2%C3%A2-point-distractor
#1
G Mattiassich, W Litzlbauer, M Ponschab, R Ortmaier, C Rodemund
OBJECTIVE: Open treatment of calcaneus fractures often has an increased risk of wound healing. Minimally invasive treatment with small incisions reduces complications. INDICATIONS: Calcaneal fractures with malalignment/comminution >1-2 mm; broadening, varus alignment of the calcaneal length axis or shortening; emergency surgery for open fractures or compartment syndrome. CONTRAINDICATIONS: Local or general contraindications. SURGICAL TECHNIQUE: Standardised positioning; restoration of length/axis with 2‑point distractor under fluoroscopic control...
January 18, 2017: Operative Orthopädie und Traumatologie
https://www.readbyqxmd.com/read/28099301/unicompartmental-knee-arthroplasty-provides-higher-activity-and-durability-than-valgus-producing-proximal-tibial-osteotomy-at-5-to-7-years
#2
Aaron J Krych, Patrick Reardon, Paul Sousa, Ayoosh Pareek, Michael Stuart, Mark Pagnano
BACKGROUND: The cases of patients with medial compartment osteoarthritis who were ≤55 years old and had a proximal tibial osteotomy (PTO) or medial unicompartmental knee arthroplasty (UKA) were compared. Outcomes included postoperative activity level, function, and survivorship free of revision to total knee arthroplasty. METHODS: Between 1998 and 2013, data were available for 240 patients between 18 and 55 years old with medial compartment arthritis and varus malalignment who were treated either with PTO (57 patients) or with UKA (183 patients)...
January 18, 2017: Journal of Bone and Joint Surgery. American Volume
https://www.readbyqxmd.com/read/28093251/malalignment-after-minimally-invasive-plate-osteosynthesis-in-distal-femoral-fractures
#3
Joon-Woo Kim, Chang-Wug Oh, Jong-Keon Oh, Il-Hyung Park, Hee-Soo Kyung, Kyeong-Hyeon Park, Seong-Dae Yoon, Seong-Min Kim
INTRODUCTION: Although minimally invasive plate osteosynthesis (MIPO) is a preferred operative treatment for fractures of the distal femur, malalignment is a significant concern because of indirect reduction of the fracture. The purpose of this study, therefore, was to evaluate radiologic alignment after MIPO for distal femoral fractures. PATIENTS AND METHODS: Of the 138 patients with fracture of the distal femur who underwent MIPO, we enrolled 51 patients in whom bilateral rotational alignment could be assessed by postoperative computed tomography (CT)...
January 10, 2017: Injury
https://www.readbyqxmd.com/read/28088939/complications-in-the-management-of-closed-high-energy-proximal-tibial-plateau-fractures
#4
Kavin Khatri, Vijay Sharma, Darsh Goyal, Kamran Farooque
PURPOSE: To report complications in the management of complex closed proximal tibial fractures. METHOD: A retrospective study was conducted to analyze the infectious and noninfectious complications encountered in the management of high-energy Schatzker type V and VI tibial plateau fractures. All patients were treated at the level 1 trauma centre between January 2011 and March 2014. Sixty two patients were included in the study. The mean patient age was (43.16 ± 11...
December 1, 2016: Chinese Journal of Traumatology, Zhonghua Chuang Shang za Zhi
https://www.readbyqxmd.com/read/28087396/influence-of-coronal-bowing-on-the-lower-alignment-and-the-positioning-of-component-in-navigation-and-conventional-total-knee-arthroplasty
#5
Hideo Kobayashi, Yasushi Akamatsu, Ken Kumagai, Yoshihiro Kusayama, Masato Aratake, Tomoyuki Saito
BACKGROUND: Coronal alignment is an important factor for the function and longevity of total knee arthroplasty (TKA). Coronal bowing of the lower extremity is common among Asians and it may pose a risk for malalignment of the lower leg and malposition of component. HYPOTHESIS: We hypothesized that coronal bowing itself has a risk for malalignment of the lower leg and malposition of femoral / tibial components and that navigation TKA is beneficial for patients with coronal bowing...
January 10, 2017: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://www.readbyqxmd.com/read/28072630/bracing-of-the-reconstructed-and-osteoarthritic-knee-during-high-dynamic-load-tasks
#6
Harvi F Hart, Kay M Crossley, Natalie J Collins, David C Ackland
PURPOSE: Lateral compartment osteoarthritis accompanied by abnormal knee biomechanics are frequently reported in individuals with knee osteoarthritis after anterior cruciate ligament reconstruction (ACLR). The aim of this study was to evaluate changes in knee biomechanics produced by an adjusted and unadjusted varus knee brace during high dynamic loading activities in individuals with lateral knee osteoarthritis after ACLR and valgus malalignment. METHODS: Nineteen participants who had undergone ACLR 5 to 20 years previously and had symptomatic and radiographic lateral knee osteoarthritis with valgus malalignment were assessed...
January 9, 2017: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/28053258/ankle-joint-pressure-changes-in-high-tibial-and-distal-femoral-osteotomies-a-cadaver-study
#7
F Krause, A Barandun, G Klammer, I Zderic, B Gueorguiev, T Schmid
AIMS: To assess the effect of high tibial and distal femoral osteotomies (HTO and DFO) on the pressure characteristics of the ankle joint. MATERIALS AND METHODS: Varus and valgus malalignment of the knee was simulated in human cadaver full-length legs. Testing included four measurements: baseline malalignment, 5° and 10° re-aligning osteotomy, and control baseline malalignment. For HTO, testing was rerun with the subtalar joint fixed. In order to represent half body weight, a 300 N force was applied onto the femoral head...
January 2017: Bone & Joint Journal
https://www.readbyqxmd.com/read/28045871/revision-posterior-cruciate-ligament-surgery
#8
Gregory C Fanelli, Matthew G Fanelli, David G Fanelli
Successful posterior cruciate ligament (PCL) reconstruction surgery results from identification and treatment of associated pathology such as posterolateral instability, posteromedial instability, and lower extremity malalignment. The use of strong graft material, properly placed tunnels to as closely as possible approximate the PCL insertion sites, and minimization of graft bending also enhance the probability of PCL reconstruction success. In addition, mechanical graft tensioning, primary and back-up PCL graft fixation, and the appropriate postoperative rehabilitation program are also necessary ingredients for PCL reconstruction success...
March 2017: Sports Medicine and Arthroscopy Review
https://www.readbyqxmd.com/read/28045870/preoperative-planning-for-acl-revision-surgery
#9
Leonardo Osti, Matteo Buda, Raffaella Osti, Leo Massari, Nicola Maffulli
The number of patients undergoing revision surgery following failure of anterior cruciate ligament (ACL) reconstruction has increased over the recent past, following the overall increased number of primary ACL reconstruction performed. Failure of primary ACL reconstruction can be attributed to technical errors, biological failures, or new traumatic injuries. Technical errors include femoral and/or tibial tunnels malposition, untreated associated ligaments insufficiencies, uncorrected lower limb malalignment, and graft fixation failures...
March 2017: Sports Medicine and Arthroscopy Review
https://www.readbyqxmd.com/read/28040880/autologous-osteochondral-transplantation-mosaicplasty-in-articular-cartilage-defects-of-the-patellofemoral-joint-retrospective-analysis-of-33-cases
#10
T Y Emre, Z Atbasi, D T Demircioglu, M Uzun, O Kose
OBJECTIVE: The purpose of this retrospective study was to evaluate the results of osteochondral autografting (mosaicplasty) in isolated articular cartilage defects of the patellofemoral joint. MATERIALS AND METHODS: Thirty-three patients who underwent mosaicplasty for patellofemoral (either patella or trochlea) cartilage defects (modified Outerbridge classification: grades III and IV) of the knee joint were retrospectively reviewed. There were 25 male and 8 female patients with a mean age of 31...
December 31, 2016: Musculoskeletal Surgery
https://www.readbyqxmd.com/read/28040087/femoral-non-union-with-malalignment-reconstruction-and-biological-stimulation-with-the-chipping-technique
#11
Yoshinobu Watanabe, Takashi Matsushita
INTRODUCTION: The purpose of this study was to investigate the effectiveness of the chipping technique for the treatment of femoral non-unions associated with malalignment. PATIENTS AND METHODS: A total of 21 femoral non-unions were managed with the chipping procedure and re-fixation. 15 of them had malalignment (angular or rotational deformity or limb length discrepancy). The deformities were simultaneously corrected by a combination of chipping and temporal external fixator...
December 2016: Injury
https://www.readbyqxmd.com/read/28030511/ankle-distraction-arthroplasty-indications-technique-and-outcomes
#12
Mitchell Bernstein, Jay Reidler, Austin Fragomen, S Robert Rozbruch
Ankle distraction is an alternative to ankle arthrodesis or total ankle arthroplasty in younger patients with arthritis. Ankle distraction involves the use of external fixation to mechanically unload the ankle joint, which allows for stable, congruent range of motion in the setting of decreased mechanical loading, potentially promoting cartilage repair. Adjunct surgical procedures are frequently done to address lower-extremity malalignment, ankle equinus contractures, and impinging tibiotalar osteophytes. Patients can bear full weight during the treatment course...
February 2017: Journal of the American Academy of Orthopaedic Surgeons
https://www.readbyqxmd.com/read/28027146/gradual-deformity-correction-in-blount-disease
#13
Stephanie W Mayer, Elizabeth W Hubbard, Dan Sun, Robert K Lark, Robert D Fitch
BACKGROUND: Blount disease is a disorder of the posteromedial proximal tibial physis which causes a progressive varus, procurvatum, and internal rotation deformity of the tibia. Untreated, it can cause significant limb malalignment. The goal of this study is to evaluate the results of correction of Blount disease using types of external fixation. METHODS: We conducted a retrospective review of 41 patients (51 limbs) who underwent correction of Blount disease with an Ilizarov external fixator or a Taylor spatial frame (TSF) by a single surgeon...
December 23, 2016: Journal of Pediatric Orthopedics
https://www.readbyqxmd.com/read/28009709/the-effect-of-cervical-interbody-cage-morphology-material-composition-and-substrate-density-on-cage-subsidence
#14
Paul B Suh, Christian Puttlitz, Chad Lewis, B Sonny Bal, Kirk McGilvray
BACKGROUND: Interbody cages used in spinal fusion surgery can subside into the adjacent vertebral bodies after implantation, leading to loss of spinal height, malalignment, and possible radicular symptoms. Several factors may contribute to cage subsidence. METHODS: This in vitro investigation examined the possible contribution of substrate density, cage contact area (ie, cage footprint), cage filling, cage end plate surface texture, and cage material composition on the magnitude of subsidence...
February 2017: Journal of the American Academy of Orthopaedic Surgeons
https://www.readbyqxmd.com/read/28009615/healing-of-atypical-subtrochanteric-femur-fractures-after-cephalomedullary-nailing-which-factors-predict-union
#15
Jae-Woo Cho, Chang-Wug Oh, Frankie Leung, Ki-Chul Park, Merng Koon Wong, Ernest Kwek, Han-Ju Kim, Jong-Keon Oh
OBJECTIVES: The purpose of this study was to determine the healing rate and time-to-union of atypical subtrochanteric fractures treated with cephalomedullary nailing DESIGN: Retrospective review, descriptive and analytic study SETTING: Six level 1 trauma centers PATIENTS/PARTICIPANTS: The study included 42 patients with 48 displaced, atypical, bisphosphonate-associated subtrochanteric femur fractures who underwent surgical intervention. INTERVENTION: Cephalomedullary femur nailing MAIN OUTCOME MEASUREMENT: The main outcome measures were radiologic healing and time to union...
November 7, 2016: Journal of Orthopaedic Trauma
https://www.readbyqxmd.com/read/28005167/patient-specific-instrumentation-development-in-tka-1st-and-2nd-generation-designs-in-comparison-with-conventional-instrumentation
#16
Oh-Ryong Kwon, Kyoung-Tak Kang, Juhyun Son, Dong-Suk Suh, Dong Beom Heo, Yong-Gon Koh
INTRODUCTION: This study was conducted to determine if the difference in magnetic resonance imaging (MRI)-based 2nd generation patient-specific instrumentation (PSI) design affects post-operative restoration of neutral mechanical alignment in total knee arthroplasty (TKA) compared with the 1st generation PSI design and conventional surgical techniques. In addition, it is aimed at elucidating whether PSI improves surgical efficiency with respect to operating room time, estimated blood loss and the number of instrument trays used intra-operatively...
December 22, 2016: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/27999455/intramedullary-fixation-of-metacarpal-fractures-using-headless-compression-screws
#17
Daniel G Tobert, Melissa Klausmeyer, Chaitanya S Mudgal
Introduction The purpose of this study is to examine the clinical results of retrograde intramedullary headless screw (IMHS) fixation for metacarpal fractures. Methods A retrospective review was performed on 16 patients with 18 metacarpal fractures who underwent IMHS fixation at a single institution. The average age was 32 years. The indications for surgery included rotational malalignment (five patients), multiple metacarpal fractures (five patients), angular deformity (four patients), and shortening greater than 5 mm (two patients)...
December 2016: Journal of Hand and Microsurgery
https://www.readbyqxmd.com/read/27997507/the-prevalence-and-risk-factors-of-iliac-screw-loosening-after-adult-spinal-deformity-surgery
#18
Tomohiro Banno, Tomohiko Hasegawa, Yu Yamato, Sho Kobayashi, Daisuke Togawa, Shin Oe, Yuki Mihara, Yukihiro Matsuyama
STUDY DESIGN: A retrospective study. OBJECTIVE: We investigated the prevalence of iliac screw loosening and determined risk factors after adult spinal deformity (ASD) surgery. SUMMARY OF BACKGROUND DATA: Lumbosacral fixation is crucial to maintain optimal sagittal alignment. Iliac screws are commonly placed to provide protection for sacral pedicle screws. Radiolucent areas around the screws indicate fixation loss and pseudarthrosis. METHODS: Seventy-two ASD patients (13 men, 59 women; mean age, 69...
December 16, 2016: Spine
https://www.readbyqxmd.com/read/27984688/-ankle-fracture-in-adolescents-triplanar-injury-associated-to-fracture-of-leg
#19
D Cuzmar-Grimalt, M Escudero-Heldt, J T Aldunate-González, N Plaza-Guzmán
the vast mayority of epiphyseal children fractures could be classified according to Salter Harris. There are other types of patterns such as triplanar and Tillaux fractures. The former is a complex type with fracture lines in sagital, axial and frontal planes. These fractures have main complications such as early epiphyseal closure, mechanical axis malalignment and gait disturbances. A clinical case is pictured which had a tibial shaft and ipsilateral triplanar fracture, this complex scenario of rare ocurrence was treated with reduction and osteosynthesis of both fractures...
May 2016: Acta Ortopédica Mexicana
https://www.readbyqxmd.com/read/27979630/cervical-spinal-cord-injury-without-computed-tomography-evidence-of-trauma-sciwoctet-in-adults-mri-prognostic-factors
#20
Rafael Martinez-Perez, Pablo M Munarriz, Igor Paredes, Javier Cotrina, Alfonso Lagares
BACKGROUND: and Purpose: Spinal Cord Injury without Computed Tomography evidence of Trauma (SCIWOCTET) is underreported in adults and is considered a subtype of SCI with relatively good outcomes. Despite this, few studies have been performed to determine specific imaging-related prognostic factors. Our objective is to describe the imaging characteristics of patients experiencing blunt cervical spine trauma with neurological deficits, but without radiological abnormalities and associated prognostic factors...
December 12, 2016: World Neurosurgery
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