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American Journal of Orthopedics

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https://www.readbyqxmd.com/read/29099897/reliability-of-3-dimensional-glenoid-component-templating-and-correlation-to-intraoperative-component-selection
#1
Comron Saifi, Manish N Noticewala, R Michael Greiwe, Jonathan D Lester, Thomas R Gardner, Edwin Cadet, William N Levine, Louis U Bigliani, Christopher S Ahmad
Although implant-specific intraoperative targeting devices for glenoid sizing exist, a validated method for preoperatively templating glenoid component size in primary total shoulder arthroplasty (TSA) based on digital imaging does not. We conducted a study to determine if 3-dimensional (3-D) digital imaging could be used for preoperative templating of glenoid component size and to compare templated glenoid sizes with implanted glenoid sizes. We created 3-D digital models from 3 glenoid component implant sizes and preoperative scapular computed tomography scans of 24 patients who underwent primary TSA...
September 2017: American Journal of Orthopedics
https://www.readbyqxmd.com/read/29099896/reverse-shoulder-arthroplasty-and-latissimus-dorsi-tendon-transfer
#2
Mihir Sheth, Jia-Wei Kevin Ko, Surena Namdari
In a systematic review, we critically examined and synthesized the results of individual studies on reverse shoulder arthroplasty (RSA) with latissimus dorsi tendon transfer. Two electronic databases were searched. For each included study, 2 reviewers evaluated the quality of its methods and retrieved data. In cases in which outcomes data were similar between studies, data were pooled using frequency-weighted (FW) mean values to generate summary outcomes. Seven studies met the inclusion and exclusion criteria, and 133 patient cases were reviewed...
September 2017: American Journal of Orthopedics
https://www.readbyqxmd.com/read/29099895/radial-shaft-stress-fracture-in-a-major-league-pitcher
#3
Karim A Meijer, Matthew S Fury, Hayley Ennis, Luis Grau, Michael Baraga, Jean Jose, James R Andrews, Lee Kaplan
Upper extremity injuries are associated with significant morbidity in throwing athletes, and prevention and diagnosis of overuse injuries in these athletes are increasingly being emphasized. Although stress fractures are common overuse injuries, stress fractures of the upper extremity are relatively rare. To our knowledge, a stress fracture of the radial shaft has not been reported in a throwing athlete. In this article, we describe the case of a Major League Baseball pitcher who presented with a stress fracture of the lateral cortex of the radius, likely caused by contractile forces of the supinator muscle, arising after his attempt to develop a new pitch...
September 2017: American Journal of Orthopedics
https://www.readbyqxmd.com/read/29099894/effects-of-platelet-rich-plasma-and-indomethacin-on-biomechanics-of-rotator-cuff-repair
#4
Molly C Meadows, David M Levy, Christopher M Ferry, Thomas R Gardner, Takeshi Teratani, Christopher S Ahmad
We conducted a study to determine if platelet-rich plasma (PRP) enhances the strength of rotator cuff repair (RCR) and if concomitant use of nonsteroidal anti-inflammatory drugs (NSAIDs) affects PRP efficacy. We also wanted to determine the optimal centrifugation protocol for making PRP from rats. This study used 48 rats, 14 in a centrifugation protocol and 34 in an operative protocol. Six syngeneic rats from the operative group were used as PRP blood donors; the other 28 operative rats underwent bilateral RCRs...
September 2017: American Journal of Orthopedics
https://www.readbyqxmd.com/read/29099893/acute-shortening-versus-bridging-plate-for-highly-comminuted-olecranon-fractures
#5
Meir Marmor, Keiko Amano, Akira Yamamoto, David Friedberg, Erik McDonald, Eric Meinberg
Severely comminuted olecranon fractures, for which elbow stability becomes the main goal of surgery, remain a challenge for surgeons. We conducted a study to determine the percentage loss of articular surface at which a bridge plating (BP) construct becomes too unstable and an acute shortening (AS) construct is required. The olecranon process of 8 fresh-frozen cadaveric upper limbs was serially resected. At each resection, the simulated fracture was fixed first with BP and then with AS. Stability was tested by performing valgus and varus stress tests at various angles under fluoroscopy...
September 2017: American Journal of Orthopedics
https://www.readbyqxmd.com/read/29099892/treating-unstable-distal-radius-fractures-with-a-nonspanning-external-fixation-device-comparison-with-volar-locking-plates-in-historical-control-group
#6
C Liam Dwyer, Nicholas E Crosby, Timothy Cooney, William Seeds, John D Lubahn
We conducted a study to compare functional and radiographic outcomes of unstable comminuted intra-articular distal radius fractures (DRFs) treated with a nonspanning external fixation device and outcomes achieved with volar locking plates in a historical control group. Clinical and radiographic data from 25 patients with these fractures, treated with the external fixation device, were compared with outcomes data from historical control matched patients with fracture patterns treated with volar locking plates...
September 2017: American Journal of Orthopedics
https://www.readbyqxmd.com/read/29099891/paraskiing-crash-and-knee-dislocation-with-multiligament-reconstruction-and-iliotibial-band-repair
#7
Chase S Dean, Olivia Fernandes, Mark E Cinque, Jorge Chahla, Robert F LaPrade
We describe the diagnosis, treatment, rehabilitation, and complications of a 27-year-old male paraskiier who sustained a closed high-velocity knee dislocation after colliding with a tree at a speed of 45 mph and falling 40 feet to the ground. Extensive surgery to repair and reconstruct the knee included open lateral capsular repair, open anatomical posterolateral corner reconstruction with split Achilles tendon allograft, open iliotibial band reconstruction with Achilles tendon allograft, arthroscopic anterior cruciate ligament reconstruction with bone-patellar tendon-bone autograft, and double-bundle posterior cruciate ligament reconstruction with Achilles tendon allograft for the anterolateral bundle and tibialis anterior tendon allograft for the posteromedial bundle...
September 2017: American Journal of Orthopedics
https://www.readbyqxmd.com/read/29099890/the-role-of-synovial-cytokines-in-the-diagnosis-of-periprosthetic-joint-infections-current-concepts
#8
Jared M Newman, Jaiben George, Alison K Klika, Wael K Barsoum, Carlos A Higuera
Periprosthetic joint infection (PJI) is a serious and potentially devastating complication of total joint arthroplasty. Accurate diagnosis of PJI is of utmost importance, but differentiating septic from aseptic failed total joint arthroplasty is extremely challenging, and improper management can lead to significant morbidity. The gold standard for PJI diagnosis is based on standardized laboratory and clinical criteria but relies on preoperative and intraoperative findings, which can be unreliable. Given these limitations, research has focused on new methods for diagnosing PJI...
September 2017: American Journal of Orthopedics
https://www.readbyqxmd.com/read/29099889/information-on-orthopedic-trauma-fellowships-online-accessibility-and-content
#9
Richard M Hinds, John T Capo, Kenneth A Egol
The internet is a popular resource for orthopedic fellowship applicants. We conducted a study to assess the accessibility of orthopedic trauma fellowship (OTF) program websites and to evaluate the content on the sites. We queried the online database of the Orthopaedic Trauma Association (OTA) and the online Fellowship and Residency Electronic Interactive Database (FREIDA) to assess available OTF program links. We used Google to assess how accessible the sites are from outside the databases. We then analyzed accessible sites for content pertinent to OTF applicants...
September 2017: American Journal of Orthopedics
https://www.readbyqxmd.com/read/29099888/medial-oblique-meniscomeniscal-ligament-of-knee
#10
Avijit Sharma, Jason Payne, M M Manring, David C Flanigan
An aberrant meniscus attachment was found in the setting of an anterior cruciate ligament injury. An anomalous cordlike attachment ran from the anterior horn of the medial meniscus to the posterior horn of the lateral meniscus through the intercondylar notch. Surgeons should be aware of the anatomical variability in the knee in order to provide the best care for their patients.
September 2017: American Journal of Orthopedics
https://www.readbyqxmd.com/read/29099887/use-of-intravenous-tranexamic-acid-improves-early-ambulation-after-total-knee-arthroplasty-and-anterior-and-posterior-total-hip-arthroplasty
#11
Eugene S Krauss, MaryAnne Cronin, Sanjeev J Suratwala, Paul Enker, Lisa Rosen, Ayal Segal
We conducted a retrospective cohort study (N = 477) to determine if use of intravenous tranexamic acid (TXA) improves early ambulation and reduces blood loss after total knee arthroplasty and anterior and posterior total hip arthroplasty. Mean (SD) patient age was 66.5 (10.1) years. For all 3 procedures, early ambulation was significantly better in the TXA group than in the no-TXA group at postoperative days 1 and 2, and, over time, reductions in hemoglobin and hematocrit were statistically significantly lower in the TXA group than in the no-TXA group...
September 2017: American Journal of Orthopedics
https://www.readbyqxmd.com/read/29099886/risk-of-osteoporotic-fracture-after-steroid-injections-in-patients-with-medicare
#12
Leah Y Carreon, Kevin L Ong, Edmund Lau, Steven M Kurtz, Steven D Glassman
To further evaluate the relationship between steroid injections and osteoporotic fracture risk, we analyzed Medicare administrative claims data on both large-joint steroid injections (LJSIs) into knee and hip and transforaminal steroid injections (TSIs), as well as osteoporotic hip and wrist fractures. Our hypothesis was that a systemic effect of steroid injections would increase fracture risk in all skeletal locations regardless of injection site, whereas a local effect would produce a disproportionate increased risk of spine fracture with spine injection...
September 2017: American Journal of Orthopedics
https://www.readbyqxmd.com/read/29099885/in-office-diagnostic-needle-arthroscopy-understanding-the-potential-value-for-the-us-healthcare-system
#13
Sean McMillan, Michael Schwartz, Bryan Jennings, Scott Faucett, Thomas Owens, Elizabeth Ford
In-office diagnostic needle arthroscopy is a cost-effective and reproducible procedure with potential cost and quality-of-life benefits for commercial payers and patients. Significant value was realized in this 200-patient retrospective review. Minimum savings of $418 and $554.62 were realized for noncontrast knee and shoulder magnetic resonance imaging (MRI) scans, respectively, in independent MRI facilities. Those savings more than doubled in hospital-based facilities: $961.08 and $1097.62, respectively, for knee and shoulder noncontrast MRI scans...
September 2017: American Journal of Orthopedics
https://www.readbyqxmd.com/read/29099884/stiff-elbow
#14
Andrew J Lovy, Michael R Hausman, Jaehon M Kim
No abstract text is available yet for this article.
September 2017: American Journal of Orthopedics
https://www.readbyqxmd.com/read/29099883/distal-radius-fractures-reconstruction-approaches-planning-and-principles
#15
Richard S Yoon, Vineet Tyagi, Susanne M Roberts, John T Capo, Frank A Liporace
Distal radius fracture (DRF) is a common injury. Treatment options have evolved and now several can be used to address even the most complex fracture patterns. Complex fractures of the distal radius and ulna can be challenging, and specific goals must be kept in mind to achieve definitive anatomical and functional restoration. This article summarizes the concepts, principles, and surgical options regarding complex DRF reconstruction.
September 2017: American Journal of Orthopedics
https://www.readbyqxmd.com/read/29099882/management-and-prevention-of-intraoperative-acetabular-fracture-in-primary-total-hip-arthroplasty
#16
Jonathon M Brown, Kevin S Borchard, Claire E Robbins, Daniel M Ward, Carl T Talmo, James V Bono
Intraoperative acetabular fracture (IAF) is a rare complication of primary total hip arthroplasty (THA). Known risk factors include poor bone stock, underreaming of the acetabular bed, and use of elliptic components. There is a paucity of literature on risk factors, treatment strategies, and outcomes of this potentially devastating complication. We studied the incidence of IAF in primary THA at our high-volume institution. We reviewed 21,519 primary THA cases and identified 16 patients (16 hips) with IAFs. Mean follow-up was 4 years (range, 0-10 years)...
September 2017: American Journal of Orthopedics
https://www.readbyqxmd.com/read/29099881/patella-alta-sees-you-do-you-see-it
#17
Robert A Magnussen
Numerous anatomic factors have been shown to contribute to patellar instability. Patellar height remains a critical, yet underappreciated contributor to instability that is amenable to surgical correction through the performance of a tibial tubercle distalization osteotomy (TTDO). The indications for a distalizing tibial tubercle osteotomy are not completely clear and depend on multiple factors. One must consider patient factors and physical examination findings in addition to radiographic measures. In general, the addition of a TTDO to medial patellofemoral ligament reconstruction should be considered when the degree of patella alta exceeds a Caton-Deschamps Index (CDI) of 1...
September 2017: American Journal of Orthopedics
https://www.readbyqxmd.com/read/29099880/comparison-of-lateral-retinaculum-release-and-lengthening-in-the-treatment-of-patellofemoral-disorders
#18
Berkay Unal, Betina B Hinckel, Seth L Sherman, Christian Lattermann
For lateral retinaculum (LR) tightness, release or lengthening is the indicated surgical correction. LR release (LRR) or lengthening (LRL) may be a primary treatment for painful lateral compression syndrome or as an adjunct treatment in the setting of patellofemoral instability. Although it is challenging, assessment of the soft-tissue balance between the medial restraint (the medial patellofemoral ligament) and the lateral restraint (the lateral retinaculum) is fundamental to a good outcome. LRR and LRL are effective in the treatment of patellofemoral disorders in which lateral tightness is part of the pathology...
September 2017: American Journal of Orthopedics
https://www.readbyqxmd.com/read/29099879/cartilage-restoration-in-the-patellofemoral-joint
#19
Betina B Hinckel, Andreas H Gomoll, Jack Farr
Although patellofemoral (PF) chondral lesions are common, the presence of a cartilage lesion does not implicate a chondral lesion as the sole source of pain. As attributing PF pain to a chondral lesion is "diagnosis by exclusion," thorough assessment of all potential structural and nonstructural sources of pain is the key to proper management. Commonly, multiple factors contribute to a patient's symptoms. Each comorbidity must be identified and addressed, and the cartilage lesion treatment determined. Comprehensive preoperative assessment is essential and should include a thorough "core-to-floor" physical examination...
September 2017: American Journal of Orthopedics
https://www.readbyqxmd.com/read/29099878/practice-makes-perfect
#20
Bryan T Hanypsiak
No abstract text is available yet for this article.
September 2017: American Journal of Orthopedics
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