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https://www.readbyqxmd.com/read/28918227/bone-remodeling-of-the-distal-femur-after-uncemented-total-knee-arthroplasty-a-2-year-prospective-dxa-study
#1
Mikkel Rathsach Andersen, Nikolaj S Winther, Thomas Lind, Henrik M Schrøder, Michael Mørk Petersen
Loss of bone stock as a response to the bone trauma, immobilization, and stress shielding related to joint replacement surgery increases the risk of fracture of the distal femur after total knee arthroplasty. Previous studies of uncemented femoral components have reported very high levels of bone loss in the distal femur. This study investigates the adaptive bone remodeling of the distal femur after uncemented total knee arthroplasty. We performed a 2-year follow-up of 53 patients (mean age 61.5 [38-70] years, F/M = 27/26, body mass index 29...
September 13, 2017: Journal of Clinical Densitometry
https://www.readbyqxmd.com/read/28918168/adherence-to-a-mediterranean-diet-is-associated-with-lower-incidence-of-frailty-a-longitudinal-cohort-study
#2
Nicola Veronese, Brendon Stubbs, Marianna Noale, Marco Solmi, Renè Rizzoli, Alberto Vaona, Jacopo Demurtas, Gaetano Crepaldi, Stefania Maggi
BACKGROUND & AIMS: There is a paucity of data investigating the relationship between the Mediterranean diet and frailty, with no data among North American people. We aimed to investigate if adherence to a Mediterranean diet is associated with a lower incidence of frailty in a large cohort of North American people. METHODS: This study included subjects at higher risk or having knee osteoarthritis. Adherence to the Mediterranean diet was evaluated using a validated Mediterranean diet score (aMED) as proposed by Panagiotakos and classified into five categories...
September 4, 2017: Clinical Nutrition: Official Journal of the European Society of Parenteral and Enteral Nutrition
https://www.readbyqxmd.com/read/28914114/shining-dead-bone-cause-for-cautious-interpretation-of-18-f-naf-pet-scans
#3
Magnus Bernhardsson, Olof Sandberg, Marcus Ressner, Jacek Koziorowski, Jonas Malmquist, Per Aspenberg
Background and purpose - [(18)F]Fluoride ([(18)F]NaF) PET scan is frequently used for estimation of bone healing rate and extent in cases of bone allografting and fracture healing. Some authors claim that [(18)F]NaF uptake is a measure of osteoblastic activity, calcium metabolism, or bone turnover. Based on the known affinity of fluoride to hydroxyapatite, we challenged this view. Methods - 10 male rats received crushed, frozen allogeneic cortical bone fragments in a pouch in the abdominal wall on the right side, and hydroxyapatite granules on left side...
September 15, 2017: Acta Orthopaedica
https://www.readbyqxmd.com/read/28913406/long-term-results-of-a-porous-tantalum-monoblock-tibia-component-clinical-and-radiographic-results-at-follow-up-of-10-years
#4
Daniel Gerscovich, Catherine Schwing, Anthony Unger
BACKGROUND: The purpose of this study is to assess the long-term follow-up of cementless total knee arthroplasty with the trabecular metal (TM) monoblock tibial component at an average 10-year follow-up. This report is an extension of our previously reported series of 108 TM tibias reported in 2011 (Unger and Duggan, 2011). METHODS: Fifty-eight of the original 108 knees were available for review. Each follow-up patient was evaluated by radiologic and clinical Knee Society Scores...
September 2017: Arthroplasty Today
https://www.readbyqxmd.com/read/28913396/severe-heterotopic-ossification-and-stiffness-after-revision-knee-surgery-for-a-periprosthetic-fracture
#5
Maher Baroudi, Pascale Derome, Michel Malo
Although heterotopic ossification (HO) after total hip arthroplasty has been very well described as a cause of disability, much less was written on clinical dysfunction of HO after total knee arthroplasty (TKA). To the extent of our knowledge, there has been no published case of complete bony ankylosis, secondary to severe generalized HO, after a TKA. We present the case of a 67-year-old female treated successfully, with surgical excision of ossification and TKA revision surgery, using a rotating hinge system...
September 2017: Arthroplasty Today
https://www.readbyqxmd.com/read/28906305/risk-of-knee-sepsis-following-treatment-of-open-tibia-fractures-a-multicenter-comparison-of-suprapatellar-and-infrapatellar-approaches
#6
Geoffrey S Marecek, Luke T Nicholson, Frances H Broghammer, Michael Talerico, Caroline Tougas, Derek J Donegan, John A Scolaro
OBJECTIVES: The suprapatellar approach for medullary nailing of the tibia is increasing. This requires intra-articular passage of instruments, which theoretically places the knee at risk for postoperative sepsis in the setting of open fracture. We hypothesized that the risk of knee sepsis is similar after suprapatellar or infrapatellar nailing of open tibia fractures. DESIGN: Retrospective, multicenter. SETTING: Three urban Level-1 trauma centers PATIENTS:: All patients treated with medullary nailing for open diaphyseal tibia fractures (OTA 42) from 2009 to 2015...
September 11, 2017: Journal of Orthopaedic Trauma
https://www.readbyqxmd.com/read/28906016/cxcl10-is-upregulated-in-synovium-and-cartilage-following-articular-fracture
#7
Bridgette D Furman, Collin L Kent, Janet L Huebner, Virginia B Kraus, Amy L McNulty, Farshid Guilak, Steven A Olson
The objective of this study was to investigate the expression of the chemokine CXCL10 and its role in joint tissues following articular fracture. We hypothesized that CXCL10 is upregulated following articular fracture and contributes to cartilage degradation associated with post-traumatic arthritis (PTA). To evaluate CXCL10 expression following articular fracture, gene expression was quantified in synovial tissue from knee joints of C57BL/6 mice that develop PTA following articular fracture, and MRL/MpJ mice that are protected from PTA...
September 14, 2017: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
https://www.readbyqxmd.com/read/28888229/changes-in-ankle-joint-motion-after-supramalleolar-osteotomy-a-cadaveric-model
#8
Hak Jun Kim, Eui Dong Yeo, Im Joo Rhyu, Soon-Hyuck Lee, Yeon Soo Lee, Young Koo Lee
BACKGROUND: Malalignment of the ankle joint has been found after trauma, by neurological disorders, genetic predisposition and other unidentified factors, and results in asymmetrical joint loading. For a medial open wedge supramalleolar osteotomy(SMO), there are some debates as to whether concurrent fibular osteotomy should be performed. We assessed the changes in motion of ankle joint and plantar pressure after supramalleolar osteotomy without fibular osteotomy. METHODS: Ten lower leg specimens below the knee were prepared from fresh-frozen human cadavers...
September 9, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/28884107/giant-cell-tumor-locally-advanced-around-the-knee-treatment-and-literature-review
#9
REVIEW
Ana Valeria Rigollino, Thiago Santos Fernando, Marcos Hajime Tanaka, Marcello Martins Souza
Giant cell tumor (GCT) is a benign bone tumor with aggressive characteristics. They are more prevalent in the third decade of life and demonstrate a preference for locating in the epiphyseal region of long bones. They have a high local recurrence rate, which depends on the type of treatment and initial tumor presentation. The risk of lung metastases is around 3%. Between October 2010 and August 2014, nine patients diagnosed with locally advanced GCT or with pathological fracture to the knee level underwent surgical treatment...
June 2017: Revista Brasileira de Ortopedia
https://www.readbyqxmd.com/read/28875130/ipsilateral-femur-and-tibia-fractures-in-pediatric-patients-a-systematic-review
#10
Jason B Anari, Alexander L Neuwirth, B David Horn, Keith D Baldwin
AIM: To better understand how pediatric floating knee injuries are managed after the wide spread use of new orthopaedic technology. METHODS: We searched EMBASE, COCHRANE and MEDLINE computerized literature databases from the earliest date available in the databases to February 2017 using the following search term including variants and pleural counterparts: Pediatric floating knee. All studies were thoroughly reviewed by multiple authors. Reference lists from all articles were scrutinized to identify any additional studies of interest...
August 18, 2017: World Journal of Orthopedics
https://www.readbyqxmd.com/read/28869116/teriparatide-administration-increases-periprosthetic-bone-mineral-density-after-total-knee-arthroplasty-a-prospective-study
#11
Tatsuya Suzuki, Fumio Sukezaki, Takashi Shibuki, Yoichi Toyoshima, Takashi Nagai, Katsunori Inagaki
BACKGROUND: Teriparatide is a currently available therapeutic agent for osteoporosis. Previous studies have reported that teriparatide affects periprosthetic bone mineral density (BMD) after total knee arthroplasty (TKA). However, little agreement has been reached concerning the treatment of periprosthetic BMD after TKA with teriparatide. Moreover, BMD in the femoral and tibial sides of the joints together has never been examined. We investigated the efficacy of teriparatide to inhibit BMD loss in the femoral and tibial side and considered complications such as migration and periprosthetic fractures after TKA...
July 25, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28869014/-iliac-haematoma-as-a-differential-diagnosis-to-lumbar-disc-herniation
#12
Esben Stistrup Lauritzen, Klaus Kjær Petersen
After a fall without fracture an 83-year-old man who was treated with warfarin was admitted with severe groin pain on the left hip. A few days later he had reduced strength in hip flexion and knee extension, absent patellar tendon reflex, and decreased sensibility of the anterior thigh and the medial lower leg. A magnetic resonance imaging revealed a large haematoma in the left iliac muscle. Iliac haematoma-induced femoral nerve compression neuropathy is a rare condition but should be considered as a differential diagnosis for L4 root compression in patients, who are receiving anticoagulant therapy...
August 14, 2017: Ugeskrift for Laeger
https://www.readbyqxmd.com/read/28856348/knotless-arthroscopic-reduction-and-internal-fixation-of-a-displaced-anterior-cruciate-ligament-tibial-eminence-avulsion-fracture
#13
Jordan A Bley, Ryan J Pomajzl, Patrick A Smith
Generally occurring in the 8- to 14-year-old population, tibial eminence avulsion fractures are a common variant of anterior cruciate ligament ruptures and represent 2% to 5% of all knee injuries in skeletally immature individuals. In this article, we report on a new arthroscopic reduction and internal fixation technique that involves 2 absorbable anchors with adjustable suture-tensioning technology. This technique optimizes reduction and helps surgeons avoid proximal tibial physeal damage, procedure-related morbidity, and additional surgery...
July 2017: American Journal of Orthopedics
https://www.readbyqxmd.com/read/28856026/acute-traumatic-patellar-tendon-rupture-at-the-tibial-tuberosity-attachment-without-avulsion-fracture
#14
Shuichi Miyamoto, Makoto Otsuka, Fumio Hasue, Takayuki Fujiyoshi, Koushirou Kamiya, Hitoshi Kiuchi, Ken Ohara, Atsushi Yunde, Yasunori Toki, Tadashi Tanaka, Junichi Nakamura, Seiji Ohtori
Patellar tendon rupture in children is especially rare. The fact that the area of traumatic rupture has wide variations makes surgical treatment difficult. We present an 11-year-old boy with acute traumatic patellar tendon rupture at the tibial tuberosity attachment without avulsion fracture. Primary end-to-end repair and reinforcement using 1.5 mm stainless steel wires as a surgical strategy were undertaken. Early range of motion began with a functional knee brace and the reinforced stainless wire was removed 3 months after surgery...
2017: Case Reports in Orthopedics
https://www.readbyqxmd.com/read/28854767/open-reduction-and-internal-fixation-of-isolated-posterior-cruciate-ligament-avulsion-fractures-clinical-and-functional-outcome
#15
Sachin Joshi, Chirag Bhatia, Ashwin Gondane, Avinash Rai, Sumer Singh, Shobhit Gupta
Purpose: The posterior cruciate ligament (PCL) presents commonly with avulsion fractures of its tibial attachment. An avulsion fracture of the PCL, if not surgically fixed, may lead to secondary changes in the knee joint. Various fixation techniques have been explored with use of lag screws, steel wires, absorbable screws, suture anchors and straddle nails. The purpose of this study was to evaluate the clinical and functional outcome of open reduction and internal fixation of tibial avulsion injuries of the PCL using cannulated cancellous screws...
September 1, 2017: Knee Surgery & related Research
https://www.readbyqxmd.com/read/28852347/marjolin-s-ulcer-of-the-tibia-with-pelvic-lymph-node-metastasis
#16
Craig C Akoh, Justin Chang, Joseph Buckwalter
Marjolin's ulcer, a form of squamous cell carcinoma, is a rare complication of a chronic wound infection. To date, there have not been any detailed reports of lymphatic spread of Marjolin's ulcer from an extremity. This report describes a 44-year old male with a history of an open tibia fracture at age 15, who presented with chronic osteomyelitis, increasing bloody wound drainage, and an enlarging vascular exophytic masses in the region of drainage. Biopsy of the mass showed squamous cell carcinoma. Initial staging with computed tomography (CT) was negative for metastatic disease...
2017: Iowa Orthopaedic Journal
https://www.readbyqxmd.com/read/28852336/tibial-plateau-fractures-a-new-rank-ordering-method-for-determining-to-what-degree-injury-severity-or-quality-of-reduction-correlate-with-clinical-outcome
#17
Katie Freeman, Jared L Michalson, Donald D Anderson, Thomas D Brown, Thomas A DeCoster, Douglas R Dirschl, Matthew D Karam, J Lawrence Marsh
BACKGROUND: Injury severity may be the most important factor in determining outcome after articular fractures, but there is a surprising paucity of clinical evidence to support this assertion. The purpose of this study was to utilize a new method for rank ordering a group of patient radiographs to assess the effect of injury severity and quality of reduction on patient outcomes after tibial plateau fractures. METHODS: Tibial plateau fractures in 64 patients were treated operatively or non-operatively based on physician preference from standard of care techniques...
2017: Iowa Orthopaedic Journal
https://www.readbyqxmd.com/read/28852332/radiographic-risk-factors-for-interprosthetic-femur-fractures
#18
Jason S Lipof, Ari D Amitai, Kyle T Judd, John T Gorczyca
PURPOSE: Total hip arthroplasty (THA) and total knee arthroplasty (TKA) are among the most common orthopaedic procedures performed in the United States annually. As the number of patients undergoing these procedures increases so too does the incidence of periprosthetic femur fractures. A number of these periprosthetic fractures occur between two ipsilateral implants, so-called interprosthetic fractures. Recent biomechanical data has challenged the importance of these interprosthetic distances, relating that cortical width and osteoporotic bone are more closely correlated with fracture than interprosthetic distance...
2017: Iowa Orthopaedic Journal
https://www.readbyqxmd.com/read/28845005/-treatment-of-patellofemoral-instability-in-adolescent-by-anatomical-double-bundle-medial-patellofemoral-ligament-reconstruction-with-double-suture-anchor-technique
#19
Weihong Zhu, You Chen, Qi Tang, Lele Liao, Ding Li
To explore the clinical outcomes of anatomical double-bundle medial patellofemoral ligament (MPFL) reconstruction with double suture anchor technique in treating patellofemoral instability in adolescent.
 Methods: Twenty-five young people with patellofemoral instability (25 knees) in our department from January 2013 to December 2014 were enrolled for this study. All patients were performed anatomical double-bundle MPFL reconstruction with arthroscopic-assisted suture anchors technique in the patella, and fixed in the femoral socket with absorbable interference screw...
July 28, 2017: Zhong Nan da Xue Xue Bao. Yi Xue Ban, Journal of Central South University. Medical Sciences
https://www.readbyqxmd.com/read/28840154/do-tibial-plateau-fractures-worsen-outcomes-of-knee-ligament-injuries-a-matched-cohort-analysis
#20
Mark E Cinque, Jonathan A Godin, Gilbert Moatshe, Jorge Chahla, Bradley M Kruckeberg, Jonas Pogorzelski, Robert F LaPrade
BACKGROUND: Tibial plateau fractures account for a small portion of all fractures; however, these fractures can pose a surgical challenge when occurring concomitantly with ligament injuries. PURPOSE/HYPOTHESIS: The purpose of this study was to compare 2-year outcomes of soft tissue reconstruction with or without a concomitant tibial plateau fracture and open reduction internal fixation. We hypothesized that patients with a concomitant tibial plateau fracture at the time of soft tissue surgery would have inferior outcomes compared with patients without an associated tibial plateau fracture...
August 2017: Orthopaedic Journal of Sports Medicine
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