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https://www.readbyqxmd.com/read/27928730/guided-growth-may-not-be-the-best-option-for-knee-valgus-deformity-in-adolescent-patients-with-morquio-a
#1
D Colmenares-Bonilla, M Vasconcelos-Martinez, J Guerra-Jasso, L Ocampo-Perez
INTRODUCTION: Valgus deformity in knees is a common concern in Morquio-A patients, preceding premature arthrosis and pain leading to walking disability and loss of ambulatory status. Treatment alternative is the guided growth, but this is sometimes not applied on time. Due to short height reached on these patients, not all will benefit from guided growth surgery. PURPOSE: The purpose of this study is to describe early results of physeal osteotomy for acute valgus correction in adolescent patients and those almost at height peak to achieve alignment...
December 7, 2016: Musculoskeletal Surgery
https://www.readbyqxmd.com/read/27922985/video-analysis-of-anterior-cruciate-ligament-acl-injuries-a-systematic-review
#2
Victor R Carlson, Frances T Sheehan, Barry P Boden
BACKGROUND: As the most viable method for investigating in vivo anterior cruciate ligament (ACL) rupture, video analysis is critical for understanding ACL injury mechanisms and advancing preventative training programs. Despite the limited number of published studies involving video analysis, much has been gained through evaluating actual injury scenarios. METHODS: Studies meeting criteria for this systematic review were collected by performing a broad search of the ACL literature with use of variations and combinations of video recordings and ACL injuries...
November 29, 2016: JBJS Reviews
https://www.readbyqxmd.com/read/27919583/comparison-of-total-hip-arthroplasty-with-and-without-femoral-shortening-osteotomy-for-unilateral-mild-to-moderate-high-hip-dislocation
#3
Huiwu Li, Jiawei Xu, Xinhua Qu, Yuanqing Mao, Kerong Dai, Zhenan Zhu
BACKGROUND: This study compares the outcome between THA with and without femoral shortening osteotomy for unilateral mild to moderate high hip dislocation in developmental dysplasia of the hip patients. METHODS: The data on 42 hips in 42 patients who had undergone THA for unilateral mild to moderate high hip dislocation were retrospectively reviewed after being prospectively collected. In 22 patients, hips were reduced by soft tissue release and direct leverage using an elevator, without the osteotomy...
August 26, 2016: Journal of Arthroplasty
https://www.readbyqxmd.com/read/27915458/acl-deficiency-and-varus-osteoarthritis-high-tibial-osteotomy-alone-or-combined-with-acl-reconstruction
#4
Julian Mehl, Jochen Paul, Matthias J Feucht, Gerrit Bode, Andreas B Imhoff, Norbert P Südkamp, Stefan Hinterwimmer
INTRODUCTION: This study investigates the mid- to long-term clinical and radiological outcome in patients with symptomatic varus osteoarthritis (OA) and deficiency of the anterior cruciate ligament (ACL) and analyzes whether there are differences between isolated high tibial osteotomy (HTO) or combined single-stage HTO and ACL reconstruction (ACLR). METHODS: 26 patients who underwent HTO alone (group 1) and 26 patients who underwent single-stage HTO and ACLR (group 2) because of varus OA and ACL deficiency were examined at a mean of 5...
December 3, 2016: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/27915405/long-term-functional-outcomes-and-knee-alignment-of-computer-assisted-navigated-total-knee-arthroplasty
#5
V Sardana, J M Burzynski, M Khan, N Stone, B S Weening, P K Zalzal
INTRODUCTION: This retrospective study examined the relationship between the mechanical axis throughout a functional arc of motion and functional outcome scores in patients undergoing computer-assisted navigation-based total knee arthroplasty (CAN-TKA) at 6-year follow-up. MATERIALS AND METHODS: The Stryker eNact Precision Knee Navigation System was utilized to obtain pre- and postoperative alignment measurements throughout the functional arc of motion. Patients were contacted via telephone and asked to complete the Short Form-12 and Western Ontario and McMaster Universities, which have been demonstrated to be reliable, valid, and sensitive assessment tools in this patient population...
December 3, 2016: Musculoskeletal Surgery
https://www.readbyqxmd.com/read/27913269/the-structure-organisation-and-perioperative-management-of-ambulatory-surgery-and-anaesthesia-in-france-methodology-of-the-sfar-opera-study
#6
Pierre Albaladejo, Frédéric Aubrun, Charles-Marc Samama, Laurent Jouffroy, Marc Beaussier, Dan Benhamou, Pauline Romegoux, Kristina Skaare, Jean Luc Bosson, Claude Ecoffey
The organization of health care establishments and perioperative care are essential for ensuring the quality of care and safety of patients undergoing outpatient surgery. In order to correctly inventory these organizations and practices, in 2013-2014, the French Society of Anaesthesia and Intensive Care organized an extensive practical survey in French ambulatory surgery units entitled the "OPERA" study (Organisation PERiopératoire de l'anesthésie en chirurgie Ambulatoire). From among all of the ambulatory surgery centres listed by the Agences Régionales de Santé [Regional Health Agencies, France], 206 public and private centres were randomly selected...
November 29, 2016: Anaesthesia, Critical Care & Pain Medicine
https://www.readbyqxmd.com/read/27904720/clinical-results-of-lateral-unicompartmental-knee-arthroplasty-minimum-2-year-follow-up
#7
Kyung Tae Kim, Song Lee, Jeehyoung Kim, Jin Woo Kim, Min Su Kang
BACKGROUND: We investigated the clinical results and early complications after lateral unicompartmental knee arthroplasty (UKA) using the Zimmer unicompartmental high-flex knee (ZUK) prosthesis with a minimum follow-up of 2 years. METHODS: Twenty-seven patients (30 cases) who underwent lateral UKA with the ZUK prosthesis between January 2011 and February 2014 were selected for this study. The mean age of the patients was 63.3 years at the time of surgery, and the mean followup was 3 years and 2 months (range, 24 to 48 months)...
December 2016: Clinics in Orthopedic 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
#8
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/27894181/total-knee-arthroplasty-for-severe-flexion-contracture-in-rheumatoid-arthritis-knees
#9
Youn Soo Hwang, Kyu Pill Moon, Kyung Taek Kim, Jin Wan Kim, Won Seok Park
Flexion contracture deformities, as well as severe varus and valgus deformities of the knee joint, accompany osteoarthritis or rheumatoid arthritis (RA). In particular, severe flexion contracture deformity of the knee joint is often found in patients with RA, which renders them nonambulatory. This report describes a 26-year-old female patient diagnosed with RA 10 years ago. She had chronic joint pain, severe flexion contracture, valgus deformity in both knees, and limited range of motion in both knees and became nonambulatory...
December 1, 2016: Knee Surgery & related Research
https://www.readbyqxmd.com/read/27894175/comparison-of-cable-method-and-miniaci-method-using-picture-archiving-and-communication-system-in-preoperative-planning-for-open-wedge-high-tibial-osteotomy
#10
Seong-Dae Yoon, GuoFeng Zhang, Hee-June Kim, Byoung-Joo Lee, Hee-Soo Kyung
Purpose: The purpose was to compare the accuracy of Miniaci method using picture archiving and communication system (PACS) with a cable method in high tibial osteotomy (HTO). Materials and Methods: This study analyzed 47 patients (52 knees) with varus deformity and medial osteoarthritis. From 2007 to 2013, patients underwent HTO using either a cable method (20 knees) or Miniaci method based on a PACS image (32 knees). In the cable method, the 62.5% point of the mediolateral tibial plateau width was located using an electrocautery cord under fluoroscopy (cable group)...
December 1, 2016: Knee Surgery & related Research
https://www.readbyqxmd.com/read/27894172/the-spect-ct-evaluation-of-compartmental-changes-after-open-wedge-high-tibial-osteotomy
#11
Tae Won Kim, Byung Kag Kim, Dong Whan Kim, Jae Ang Sim, Beom Koo Lee, Yong Seuk Lee
Purpose: The purpose of this study was to evaluate compartmental changes using combined single-photon emission computerized tomography and conventional computerized tomography (SPECT/CT) after open wedge high tibial osteotomy (OWHTO) for providing clinical guidance for proper correction. Materials and Methods: Analysis was performed using SPECT/CT from around 1 year after surgery on 22 patients who underwent OWHTO. Postoperative mechanical axis was measured and classified into 3 groups: group I (varus), group II (0°-3° valgus), and group III (>3° valgus)...
December 1, 2016: Knee Surgery & related Research
https://www.readbyqxmd.com/read/27886399/simulation-of-total-knee-arthroplasty-in-5%C3%A2-or-7%C3%A2-valgus-a-study-of-gap-imbalances-and-changes-in-limb-and-knee-alignments-from-native
#12
Stephanie Gu, Stephen M Howell, Maury L Hull
This study calculated the frequency of occurrence of gap imbalances between medial and lateral compartments at 0° flexion and within a compartment between 0° and 90° flexion, and changes in limb and knee alignment from native after computer simulation of TKA with the knee set 5° or 7° valgus at 0° flexion. TKA was simulated on forty-nine 3D bone models of native limbs. At 0° flexion, the femoral component was set 5° or 7° valgus from the anatomic axis of the femur, and the tibial component was set 0° to the tibial anatomic axis...
November 25, 2016: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
https://www.readbyqxmd.com/read/27884055/the-association-of-forefoot-varus-deformity-with-patellofemoral-cartilage-damage-in-older-adult-cadavers
#13
Rebecca S Lufler, Joshua J Stefanik, Jingbo Niu, F Kip Sawyer, Todd M Hoagland, K Douglas Gross
INTRODUCTION: Forefoot alignment may contribute to patellofemoral joint (PFJ) osteoarthritis (OA) via its influence on the closed chain kinematics of the lower limb. The purpose of this cadaveric study was to investigate the relationship between forefoot varus and ipsilateral cartilage damage in the medial and lateral PFJ. MATERIALS AND METHODS: Forefoot alignment measurements were obtained from the feet of 25 cadavers (n=50). Cartilage damage in the medial and lateral PFJ of each knee was scored using the Outerbridge scale...
November 24, 2016: Anatomical Record: Advances in Integrative Anatomy and Evolutionary Biology
https://www.readbyqxmd.com/read/27876498/associated-lateral-medial-knee-instability-and-its-relevant-factors-in-anterior-cruciate-ligament-injured-knees
#14
Arata Yuuki, Takeshi Muneta, Toshiyuki Ohara, Ichiro Sekiya, Hideyuki Koga
BACKGROUND: Associations of lateral/medial knee instability with anterior cruciate ligament (ACL) injury have not been thoroughly investigated. The purposes of this study were to investigate whether lateral/medial knee instability is associated with ACL injury, and to clarify relevant factors for lateral/medial knee instability in ACL-injured knees. METHODS: One hundred and nineteen patients with unilateral ACL-injured knees were included. Lateral/medial knee instability was assessed with varus/valgus stress X-ray examination for both injured and uninjured knees by measuring varus/valgus angle, lateral/medial joint opening, and lateral/medial joint opening index...
November 19, 2016: Journal of Orthopaedic Science: Official Journal of the Japanese Orthopaedic Association
https://www.readbyqxmd.com/read/27869622/acl-deficiency-increases-forces-on-the-medial-femoral-condyle-and-the-lateral-meniscus-with-applied-rotatory-loads
#15
Lucas S McDonald, James Boorman-Padgett, Robert Kent, Kyle Stone, Thomas L Wickiewicz, Andrew D Pearle, Carl W Imhauser
BACKGROUND: The articular surfaces and menisci act with the anterior cruciate ligament (ACL) to stabilize the knee joint. Their role in resisting applied rotatory loads characteristic of instability events is unclear despite commonly observed damage to these intra-articular structures in the acute and chronic ACL injury settings. METHODS: Ten fresh-frozen human cadaveric knees were mounted to a robotic manipulator. Combined valgus and internal rotation torques were applied in the presence and absence of a 300-N compressive load...
October 19, 2016: Journal of Bone and Joint Surgery. American Volume
https://www.readbyqxmd.com/read/27866885/surgical-planning-for-flexor-digitorum-longus-tendon-transfers-an-anatomic-study
#16
Jeffrey E McAlister, Shyler L DeMill, Eric So, Christopher F Hyer
Posterior tibial tendon dysfunction is often coupled with various degrees of hindfoot valgus and equinus. Preoperative planning is essential to appropriate procedure choice and surgical efficiency. The purpose of the present study was to assess the anatomy at the harvest site for flexor digitorum longus tendon transfer, specifically at the master knot of Henry. Thirty fresh-frozen below-the-knee cadavers were used for dissection. A standard anatomic approach was performed for posterior tibial tendon debridement and flexor digitorum longus tendon transfer...
November 17, 2016: Journal of Foot and Ankle Surgery: Official Publication of the American College of Foot and Ankle Surgeons
https://www.readbyqxmd.com/read/27865479/evaluation-of-knee-functional-calibration-with-and-without-the-effect-of-soft-tissue-artefact
#17
Morgan Sangeux, Arnaud Barré, Kamiar Aminian
Functional calibration methods were devised to improve repeatability and accuracy of the knee flexion-extension axis, which is used to define the medio-lateral axis of the femur coordinate system in gait analysis. Repeatability of functional calibration methods has been studied extensively in healthy individuals, but not accuracy in the absence of a benchmark knee axis. We captured bi-plane fluoroscopy data of the knee joint in 17 subjects with unilateral total knee arthroplasty during treadmill walking. The prosthesis provided a benchmark knee axis to evaluate the functional calibration methods...
November 2, 2016: Journal of Biomechanics
https://www.readbyqxmd.com/read/27861256/nonmodifiable-risk-factors-for-anterior-cruciate-ligament-injury
#18
Meghan J Price, Maria Tuca, Frank A Cordasco, Daniel W Green
PURPOSE OF REVIEW: As anterior cruciate ligament (ACL) injury is becoming increasingly prevalent in the population of active children and young adolescents, it is crucial to be aware of both the modifiable and nonmodifiable factors that place this population at increased ACL injury risk. Historically, there has not been a definitive consensus on all of these risk factors-particularly the nonmodifiable ones. RECENT FINDINGS: The present review has accumulated the most recent evidence for the nonmodifiable risk factors in ACL injury focusing particularly on female gender, generalized joint laxity, knee recurvatum, increased lateral tibial slope, decreased intercondylar notch width, structural lower extremity valgus, limb length discrepancy, family history, and history of contralateral knee ACL injury...
November 16, 2016: Current Opinion in Pediatrics
https://www.readbyqxmd.com/read/27859544/lateral-soft-tissue-structures-contribute-to-cruciate-retaining-total-knee-arthroplasty-stability
#19
Kiron K Athwal, Hadi El Daou, Breck Lord, Andrew J Davies, William Manning, Ferdinando Rodriguez Y Baena, David J Deehan, Andrew A Amis
Little information is available to surgeons regarding how the lateral structures prevent instability in the replaced knee. The aim of this study was to quantify the lateral soft-tissue contributions to stability following cruciate-retaining total knee arthroplasty (CR TKA). Nine cadaveric knees were tested in a robotic system at full extension, 30°, 60°, and 90° flexion angles. In both native and CR implanted states, ±90 N anterior-posterior force, ±8 Nm varus-valgus, and ±5 Nm internal-external torque were applied...
November 9, 2016: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
https://www.readbyqxmd.com/read/27857502/comparison-of-closing-wedge-and-opening-wedge-high-tibial-osteotomies-for-medial-compartment-osteoarthritis-of-knee-in-asian-population-mid-term-follow-up
#20
Sanjay Agarwala, Anshul Sobti, Siddhant Naik, Sameer Chaudhari
BACKGROUND: Valgus high tibial osteotomy (HTO) is a well-established treatment option for patients with early osteoarthritis of the medial compartment of the knee. It is achievable with either open-wedge or closed-wedge technique. The aim of the study was to compare the radiological and clinical outcomes following HTO done with open- and closed-wedge techniques. MATERIAL AND METHODS: Two groups of patients undergoing HTO and fixation with locking plates were compared...
October 2016: Journal of Clinical Orthopaedics and Trauma
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