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https://www.readbyqxmd.com/read/27902166/is-intramedullary-nailing-applicable-for-distal-tibial-fractures-with-ankle-joint-extension
#1
Ozan Beytemür, Cem Albay, Oktay Adanır, Serdar Yüksel, Mehmet Akif Güleç
OBJECTIVES: This study aims to evaluate the functional and radiographic results and treatment complications of AO/OTA (Arbeitsgemeinschaft fur Osteosynthesefragen/Orthopaedic Trauma Association) type 43C1 and C2 fractures treated with intramedullary nailing. PATIENTS AND METHODS: We retrospectively evaluated 35 AO/OTA type 43C1 and C2 patients (26 males, 9 females; mean age 39.8±16.9 years; range 19 to 82 years) treated with intramedullary nailing. Two interfragmentary screws out of nail were applied in 10 patients (29%), while one interfragmentary screw out of nail was applied in 17 patients (49%)...
December 2016: Eklem Hastalıkları Ve Cerrahisi, Joint Diseases & related Surgery
https://www.readbyqxmd.com/read/27896394/the-orientation-of-the-surgical-epicondylar-axis-varies-in-varus-and-non-varus-knees-in-the-coronal-plane
#2
Yunjie Zhang, Xiaofeng Wang, Yunchao Shao, Qing Xia
PURPOSE: To investigate the orientations of the surgical epicondylar axis (SEA) of varus and non-varus knees in the coronal plane. METHODS: One-hundred and sixty-two knees from 81 Chinese patients undergoing total knee arthroplasty (TKA) were retrospectively investigated. The angle between the medial side of the femoral mechanical axis and the SEA (MA-SEA), as well as the physiological valgus angle, was measured in the coronal plane using three-dimensional reconstruction...
November 28, 2016: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/27894173/open-wedge-high-tibial-osteotomy-and-combined-arthroscopic-surgery-in-severe-medial-osteoarthritis-and-varus-malalignment-minimum-5-year-results
#3
Moon-Jib Yoo, Yong-Eun Shin
Purpose: To evaluate the radiologic and functional outcomes of medial open wedge high tibial osteotomy (HTO) combined with arthroscopic procedure in patients with medial osteoarthritis. Materials and Methods: From June 1996 to March 2010, 26 patients (32 knees) who underwent medial open wedge osteotomy and arthroscopic operation for medial osteoarthritis were retrospectively reviewed. Measurements included hip-knee-ankle (HKA) angle, femorotibial angle, medial proximal tibial angle, posterior tibial slope angle, and Kellgren-Lawrence grade...
December 1, 2016: Knee Surgery & related Research
https://www.readbyqxmd.com/read/27856802/optimization-of-hindfoot-alignment-radiography
#4
Chonglin Yang, Xiangyang Xu, Mu Hu, Bibo Wang, Yuan Zhu, Jinhao Liu
BACKGROUND: Cobey and Buck described methods to evaluate hindfoot alignment, but it is still unclear which method is better and easier to perform in clinical practice. PURPOSE: To evaluate the optimal method for radiography of hindfoot alignment. MATERIAL AND METHODS: We randomly selected 50 patients visiting the foot and ankle surgery outpatient department who underwent hindfoot alignment radiography between 1 July and 31 August 2015. Radiographs were taken using both Cobey's and Buck's methods...
November 17, 2016: Acta Radiologica
https://www.readbyqxmd.com/read/27856127/radiographic-assessment-of-knee-ankle-alignment-after-total-knee-arthroplasty-for-varus-and-valgus-knee-osteoarthritis
#5
Fuqiang Gao, Jinhui Ma, Wei Sun, Wanshou Guo, Zirong Li, Weiguo Wang
BACKGROUND: There are unanswered questions about knee-ankle alignment after total knee arthroplasty (TKA) for varus and valgus osteoarthritis (OA) of the knee. The aim of this retrospective study was to assess knee-ankle alignment after TKA. METHODS: The study consisted of 149 patients who had undergone TKA due to varus and valgus knee OA. The alignment and angles in the selected knees and ankles were measured on full-length standing anteroposterior radiographs, both pre-operatively and post-operatively...
November 14, 2016: Knee
https://www.readbyqxmd.com/read/27844117/are-advanced-three-dimensional-imaging-studies-always-needed-to-measure-the-coronal-knee-alignment-of-the-lower-extremity
#6
Jean Yves Lazennec, Quentin Chometon, Dominique Folinais, Christopher B Robbins, Aidin Eslam Pour
BACKGROUND: Coronal malalignment of the lower extremity is closely related to the onset and progression of osteoarthritis. Restoring satisfactory alignment after tibial osteotomy improves the long-term success of this conservative surgery. The purpose of our study was to determine (1) if there is a difference between two-dimensional (2D) and 3D measurements of the hip-knee-ankle (HKA) angle between the mechanical axes of the femur and the tibia, (2) which parameter most affects 2D-3D HKA measurement, and (3) the percentage of patients who are at risk of error in HKA measurement...
November 14, 2016: International Orthopaedics
https://www.readbyqxmd.com/read/27843798/chronic-ankle-instability-current-perspectives
#7
REVIEW
Omar A Al-Mohrej, Nader S Al-Kenani
Ankle sprain is reported to be among the most common recurrent injuries. About 20% of acute ankle sprain patients develop chronic ankle instability. The failure of functional rehabilitation after acute ankle sprain leads to the development of chronic ankle instability. Differentiation between functional and anatomical ankle instability is very essential to guide the proper treatment. Stability testing by varus stress test and anterior drawer test should be carried out. Subtalar instability is an important pathology that is commonly by passed during the assessment of chronic ankle instability...
October 2016: Avicenna Journal of Medicine
https://www.readbyqxmd.com/read/27830485/lateral-compartment-osteophytes-are-not-associated-with-lateral-compartment-cartilage-degeneration-in-arthritic-varus-knees
#8
Wenzel Waldstein, Maximilian F Kasparek, Martin Faschingbauer, Reinhard Windhager, Friedrich Boettner
BACKGROUND: Progression of arthritis in the lateral compartment is one of the main failure modes of unicompartmental knee arthroplasty (UKA). The decision regarding whether to perform a medial UKA sometimes is made based on whether lateral-compartment osteophytes are visible on plain radiographs obtained before surgery, but it is not clear whether the presence of lateral-compartment osteophytes signifies that the cartilage in the lateral compartment is arthritic. QUESTIONS/PURPOSES: (1) Is the presence of lateral compartment osteophytes associated with biomechanical properties of lateral-compartment cartilage, and (2) are osteophytes in the lateral compartment associated with particular histologic features of cartilage in the lateral compartment? METHODS: Between May 2010 and January 2012, we performed 201 TKAs for varus osteoarthritis confirmed on standardized AP hip-to-ankle standing radiographs...
November 9, 2016: Clinical Orthopaedics and related Research
https://www.readbyqxmd.com/read/27829727/windswept-deformities-an-indication-to-individualise-valgus-correction-angle-during-total-knee-arthroplasty
#9
Gautam M Shetty, Arun Mullaji, Ahmed Adel Khalifa, Abhik Ray
PURPOSE: We aimed to determine variation in femoral valgus correction angle (VCA) between the two limbs in a patient with windswept deformity undergoing total knee arthroplasty (TKA). METHODS: Femoral VCA was measured on full-length, hip-to-ankle, standing radiographs and was compared between the varus and the valgus limbs in 66 patients with windswept deformities. RESULTS: The mean VCA in varus knees was significantly higher compared to mean VCA in valgus knees (p = 0...
March 2017: Journal of Orthopaedics
https://www.readbyqxmd.com/read/27810026/does-osteoarthritis-of-the-ankle-joint-progress-after-triple-arthrodesis-a-midterm-prospective-outcome-study
#10
Chris A M Aarts, Petra J C Heesterbeek, Perry E M Jaspers, Mark Stegeman, Jan Willem K Louwerens
BACKGROUND: Debate exists regarding the effect of triple fusion on the development of osteoarthritis (OA) of the ankle joint. The midterm outcome after triple arthrodesis and the prevalence of OA following triple arthrodesis are reported in this study. The role of alignment in the development of OA was investigated. METHODS: Seventy five patients (87 feet) were evaluated in 2003 and of these, 48 patients (55 feet) were available for second evaluation in 2008. X-rays of the ankles and feet were made prior to surgery, in 2003 and in 2008, and the level of osteoarthritis (OA) was graded with the Kellgren and Lawrence score...
December 2016: Foot and Ankle Surgery: Official Journal of the European Society of Foot and Ankle Surgeons
https://www.readbyqxmd.com/read/27794622/mobile-bearing-medial-unicompartmental-knee-arthroplasty-restores-limb-alignment-comparable-to-that-of-the-unaffected-contralateral-limb
#11
Arun B Mullaji, Siddharth Shah, Gautam M Shetty
Background and purpose - Medial unicompartmental knee arthroplasty (UKA) is undertaken in patients with a passively correctable varus deformity. We investigated whether restoration of natural soft tissue tension would result in a lower limb alignment similar to that of the contralateral unaffected lower limb after mobile-bearing medial UKA. Patients and methods - In this retrospective study, hip-knee-ankle (HKA) angle, position of the weight-bearing axis (WBA), and knee joint line obliquity (KJLO) after mobile-bearing medial UKA was compared with that of the unaffected (clinically and radiologically) contralateral lower limb in 123 patients...
October 31, 2016: Acta Orthopaedica
https://www.readbyqxmd.com/read/27776517/the-role-of-fibular-for-supramalleolar-osteotomy-in-treatment-of-varus-ankle-arthritis-a-biomechanical-and-clinical-study
#12
Hongmou Zhao, Xiaojun Liang, Yi Li, Guangrong Yu, Wenxin Niu, Yan Zhang
BACKGROUND: Supramalleolar osteotomy (SMOT) is a well-accepted treatment method for mid-stage varus ankle osteoarthritis (OA). However, few studies have examined the role of fibular osteotomy in SMOT. The objective of the current study was to compare the biomechanical and clinical outcomes of SMOT with and without fibular osteotomy. METHODS: Eight cadaveric lower legs with 10° varus/valgus SMOT models were tested using a Tekscan ankle sensor. Tibiotalar joint contact with and without fibular osteotomy conditions were compared...
October 24, 2016: Journal of Orthopaedic Surgery and Research
https://www.readbyqxmd.com/read/27743081/how-does-lower-leg-alignment-differ-between-soccer-players-other-athletes-and-non-athletic-controls
#13
William Colyn, Rintje Agricola, Nele Arnout, Jan A N Verhaar, Johan Bellemans
PURPOSE: The influence of type and intensity of sports during growth on knee alignment was investigated. The second aim was to ascertain whether the distal femur or proximal tibia contribute most to knee alignment. Also, the influence of field position and leg dominancy on knee alignment in soccer players was audited. METHODS: Standardized full-leg standing digital radiographs were obtained from 100 males and 100 females on which 8 different alignment parameters were measured...
October 14, 2016: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/27676772/prosthesis-alignment-and-knee-valgus-in-individual-with-fibula-hemimelia-study-case
#14
Marie Laberge-Malo, Xavier Rodrigue, Céline Goyette, Annie Pouliot-Laforte, Audrey Parent, Isabelle Marcoux, Laurent Ballaz
OBJECTIVE: Fibula hemimelia is a congenital malformation of the lower limbs that is associated to aplasia or hypoplasia of the fibula. This condition is characterized by knee valgus which tends to increase over years in children walking with a below knee prosthesis. However, few recommendations are available regarding the optimal prosthesis alignment for amputated children with fibula hemimelia. The aim of this case study was to compare different prosthesis alignments and to assess their impact on knee joint moment in the frontal plane during walking...
September 2016: Annals of Physical and Rehabilitation Medicine
https://www.readbyqxmd.com/read/27667532/intraoperative-fluoroscopic-assessment-of-limb-alignment-is-a-reliable-predictor-for-postoperative-limb-alignment-in-biplanar-medial-opening-wedge-high-tibial-osteotomy
#15
Ki-Mo Jang, Jong-Hee Lee, Il Youp Cho, Bong-Kyung Park, Seung-Beom Han
BACKGROUND: The purpose of this study was to assess the reliability of pre-, intra operative, and postoperative limb alignment measurements and investigate the correlation between the measurements in biplanar medial opening-wedge high tibial osteotomy. METHODS: This study enrolled 59 knees undergoing biplanar opening-wedge high tibial osteotomy for primary medial osteoarthritis with varus deformity. Preoperative and postoperative standing lower leg radiographs and intraoperative fluoroscopic images were taken...
August 27, 2016: Journal of Arthroplasty
https://www.readbyqxmd.com/read/27649973/determining-the-cost-savings-threshold-and-alignment-accuracy-of-patient-specific-instrumentation-in-total-ankle-replacements
#16
Kamran S Hamid, Andrew P Matson, Benedict U Nwachukwu, Daniel J Scott, Richard C Mather, James K DeOrio
BACKGROUND: Traditional intraoperative referencing for total ankle replacements (TARs) involves multiple steps and fluoroscopic guidance to determine mechanical alignment. Recent adoption of patient-specific instrumentation (PSI) allows for referencing to be determined preoperatively, resulting in less steps and potentially decreased operative time. We hypothesized that usage of PSI would result in decreased operating room time that would offset the additional cost of PSI compared with standard referencing (SR)...
September 20, 2016: Foot & Ankle International
https://www.readbyqxmd.com/read/27535554/discrepancy-of-alignment-in-different-weight-bearing-conditions-before-and-after-high-tibial-osteotomy
#17
Joon Ho Wang, Jung Min Shin, Hyun Ho Kim, Seung-Hoon Kang, Byung Hoon Lee
PURPOSE: To evaluate the differences in the amount of varus malalignment and valgus (over) correction in relation to three different weight bearing conditions from whole leg AP radiographs (single-limb (SL) stance, double-limb (DL) stance, supine position (S)) before and after high tibial osteotomy (HTO), and to evaluate which alignment parameters affect the changes for patients in three different weight bearing conditions. METHODS: A total of 40 consecutive patients (43 knees) with varus osteoarthritis underwent navigation assisted open wedge HTO...
August 18, 2016: International Orthopaedics
https://www.readbyqxmd.com/read/27482015/component-alignment-and-clinical-outcome-following-total-knee-arthroplasty-a-randomised-controlled-trial-comparing-an-intramedullary-alignment-system-with-patient-specific-instrumentation
#18
H J T A M Huijbregts, R J K Khan, D P Fick, M J Hall, S A Punwar, E Sorensen, M J Reid, S Dalle Vedove, S Haebich
AIMS: We conducted a randomised controlled trial to assess the accuracy of positioning and alignment of the components in total knee arthroplasty (TKA), comparing those undertaken using standard intramedullary cutting jigs and those with patient-specific instruments (PSI). PATIENTS AND METHODS: There were 64 TKAs in the standard group and 69 in the PSI group. The post-operative hip-knee-ankle (HKA) angle and positioning was investigated using CT scans. Deviation of > 3° from the planned position was regarded as an outlier...
August 2016: Bone & Joint Journal
https://www.readbyqxmd.com/read/27477702/the-effect-of-tibiotalar-alignment-on-coronal-plane-mechanics-following-total-ankle-replacement
#19
A Jordan Grier, Abigail C Schmitt, Samuel B Adams, Robin M Queen
BACKGROUND: Gait mechanics following total ankle replacement (TAR) have reported improved ankle motion following surgery. However, no studies have addressed the impact of preoperative radiographic tibiotalar alignment on post-TAR gait mechanics. We therefore investigated whether preoperative tibiotalar alignment (varus, valgus, or neutral) resulted in significantly different coronal plane mechanics or ground reaction forces post-TAR. METHODS: We conducted a non-randomized study of 93 consecutive end-stage ankle arthritis patients...
July 2016: Gait & Posture
https://www.readbyqxmd.com/read/27472925/a-modified-and-enhanced-test-setup-for-biomechanical-investigations-of-the-hindfoot-for-example-in-tibiotalocalcaneal-arthrodesis
#20
Julia Evers, Martin Schulze, Dominic Gehweiler, Martin Lakemeier, Michael J Raschke, Dirk Wähnert, Sabine Ochman
BACKGROUND: Tibiotalocalcaneal arthrodesis (TTCA) using intramedullary nails is a salvage procedure for many diseases in the ankle and subtalar joint. Despite "newly described intramedullary nails" with specific anatomical shapes there still remain major complications regarding this procedure. The following study presents a modified biomechanical test setup for investigations of the hindfoot. METHODS: Nine fresh-frozen specimens from below the human knee were anaysed using the Hindfoot Arthrodesis Nail (Synthes) instrument...
2016: BMC Musculoskeletal Disorders
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