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Knee osteotomy

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https://www.readbyqxmd.com/read/28100411/comparison-of-mid-term-results-between-conversion-total-knee-arthroplasties-following-closed-wedge-high-tibial-osteotomy-and-primary-total-knee-arthroplasties-a-matched-pair-study-including-patellar-symptom-and-position
#1
Dae Kyung Bae, Sang Jun Song, Cheol Hee Park, Hu Liang, Jung Kwon Bae
BACKGROUND: The purpose of this study was to compare mid-term clinical and radiographic results of conversion total knee arthroplasties (TKA) following a closed-wedge high tibial osteotomy (HTO) and primary TKAs. METHODS: A total of 32 conversion TKAs (29 patients) were compared with a matched control group of patients who had undergone primary TKA. The clinical results were evaluated using the Knee Society Knee and Function score, the Western Ontario and McMaster Universities score, patella score, and range of motion (ROM)...
January 16, 2017: Journal of Orthopaedic Science: Official Journal of the Japanese Orthopaedic Association
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/28094687/successful-management-of-femoral-trauma-in-a-through-knee-amputee-with-a-previous-malunited-fracture-implications-and-functional-outcome
#3
Beth Lineham, Paul Harwood, Peter Giannoudis
BACKGROUND: After amputation patients are more likely to injure their residual limb. An injury of a previously amputated limb, especially if the residuum is not anatomically normal, poses a dilemma for management. Case Description and Methods: This case report discusses a femoral fracture sustained proximal to a through-knee amputation. Findings and outcomes: The fracture was at the site of a malunited fracture. A shortening osteotomy with bone graft was undertaken to improve alignment and prosthetic fit and remove poor-quality bone...
January 1, 2017: Prosthetics and Orthotics International
https://www.readbyqxmd.com/read/28074440/distal-femoral-extension-and-shortening-osteotomy-as-a-part-of-multilevel-surgery-in-children-with-cerebral-palsy
#4
Matthias C M Klotz, Klemens Hirsch, Daniel Heitzmann, Michael W Maier, Sebastien Hagmann, Thomas Dreher
BACKGROUND: There are several reports describing an increase in anterior pelvic tilt after hamstring lengthening in children with cerebral palsy (CP). Distal femoral extension and shortening osteotomy (DFESO) is an alternative treatment for correction of fl exed knee gait, but investigations analyzing outcome and infl uence on adjacent joint are few in the literature. The purpose of this study was to analyze the influence of DFESO on knee and pelvis in children with CP. Furthermore, it was of interest if an additional patellar tendon advancement (PA) infl uences outcome...
December 23, 2016: World Journal of Pediatrics: WJP
https://www.readbyqxmd.com/read/28060180/new-single-stage-double-osteotomy-for-late-presenting-infantile-tibia-vara-a-comprehensive-approach
#5
Edward Abraham, David Toby, Michelle Welborn, Cory W Helder, Angela Murphy
BACKGROUND: Successful surgical treatment of late-presenting infantile tibia vara (ITV) patient requires the correction of oblique deformities. The purpose of this study was to report on a new comprehensive approach to correct and prevent recurrence of these deformities with a single procedure. METHODS: Medical records of 23 consecutive children (7 to 18 y) with advanced ITV (29 knees) were retrospectively reviewed after a mean of 7.3 years postoperatively (range, 2 to 22 y)...
January 5, 2017: Journal of Pediatric Orthopedics
https://www.readbyqxmd.com/read/28053258/ankle-joint-pressure-changes-in-high-tibial-and-distal-femoral-osteotomies-a-cadaver-study
#6
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/28043753/medial-open-wedge-high-tibial-osteotomy-may-adversely-affect-the-patellofemoral-joint
#7
Kang-Il Kim, Dong-Kyoon Kim, Sang-Jun Song, Sang-Hak Lee, Dae-Kyung Bae
PURPOSE: To evaluate 2-stage arthroscopic findings of the patellofemoral joint before and after medial open-wedge high tibial osteotomy (HTO) and verify whether the patellofemoral joint would be influenced by medial open-wedge HTO. METHODS: We prospectively reviewed 114 cases of medial open-wedge HTO for the treatment of osteoarthritis with a varus knee. First-look arthroscopy was performed during HTO. The mean age at the time of HTO was 56.34 ± 5.4 years (range, 40-69 years)...
December 30, 2016: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/28032705/surgical-technique-of-total-knee-arthroplasty-without-soft-tissue-balance
#8
Hong-Tao Xu, Jiang-Tao Dong, Juan Wang, Shi-Jun Gao
Total knee arthroplasty (TKA) without soft tissue balance can create a balanced knee to a mechanical axis of near neutral with bone cuts, and remove osteophytes thoroughly. In this study, the authors present detailed steps for performing TKA. The attached video demonstrates the TKA procedure. The patient is a 77-year-old man who had suffered from knee pain for 12 years. Physical examination showed the Apley test to be positive and that the range of motion (ROM) decreased. An X-ray filmed at the positive lateral of the knee joint and the double lower extremity revealed a progression of degenerative osteoarthritis with genu varum...
November 2016: Orthopaedic Surgery
https://www.readbyqxmd.com/read/28032697/patient-specific-orthopaedic-implants
#9
REVIEW
Jack M Haglin, Adam E M Eltorai, Joseph A Gil, Stephen E Marcaccio, Juliana Botero-Hincapie, Alan H Daniels
Patient-specific orthopaedic implants are emerging as a clinically promising treatment option for a growing number of conditions to better match an individual's anatomy. Patient-specific implant (PSI) technology aims to reduce overall procedural costs, minimize surgical time, and maximize patient outcomes by achieving better biomechanical implant fit. With this commercially-available technology, computed tomography or magnetic resonance images can be used in conjunction with specialized computer programs to create preoperative patient-specific surgical plans and to develop custom cutting guides from 3-D reconstructed images of patient anatomy...
November 2016: Orthopaedic Surgery
https://www.readbyqxmd.com/read/28028569/functional-testing-and-return-to-sport-following-stabilization-surgery-for-recurrent-lateral-patellar-instability-in-competitive-athletes
#10
Aaron J Krych, Michael P O'Malley, Nick R Johnson, Rohith Mohan, Timothy E Hewett, Michael J Stuart, Diane L Dahm
PURPOSE: Medial patellofemoral ligament (MPFL) reconstruction and tibial tubercle osteotomy are commonly used to treat recurrent lateral patellar instability, yet there are limited available data on return to sport (RTS) following these procedures. The purpose of this study is to evaluate patient factors associated with excellent functional outcomes, including successful RTS, following surgical stabilization including MPFL reconstruction in competitive athletes with recurrent lateral patellar instability...
December 27, 2016: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28005100/total-knee-arthroplasty-with-retained-tibial-implants-the-role-of-minimally-invasive-hardware-removal
#11
Gregory M Georgiadis, William C Skakun
Patients with retained tibial implants may later undergo total knee arthroplasty (TKA) after tibial osteotomy or fracture. Previous knee surgery can increase the rate of complications of joint replacement. Surgical scars may not be in optimal position for hardware removal and arthroplasty. The need for multiple incisions or larger subcutaneous skin flaps in at-risk areas may increase the possibility of wound complications and infection. In this article, we report 3 cases in which a patient who had knee arthrosis and retained tibial implants underwent single-stage conversion to TKA...
November 2016: American Journal of Orthopedics
https://www.readbyqxmd.com/read/28004177/torsional-osteotomies-of-the-tibia-in-patellofemoral-dysbalance
#12
Jörg Dickschas, Aliki Tassika, Christoph Lutter, Jörg Harrer, Wolf Strecker
BACKGROUND AND PURPOSE: Anterior knee pain or patellofemoral instability is common symptom of patellofemoral dysbalance or maltracking. Tibial torsional deformities can be the reason of this pathology. After appropriate diagnostic investigation, the treatment of choice is a torsional osteotomy. This study addresses the diagnostic investigation, treatment, and the outcome of torsional osteotomies of the tibia. Does this treatment result in patellofemoral stability and provide pain relief? METHODS: Forty-nine tibial torsional osteotomies were included...
December 21, 2016: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/27999505/osteochondral-allograft-transplantation-for-femoral-trochlear-dysplasia
#13
Dharmpal V Vansadia, James R Heltsley, Scott Montgomery, Misty Suri, Deryk G Jones
BACKGROUND: The risk factors for patellofemoral joint instability include laxity of medial patellar restraints, abnormal limb geometry, femoral and tibial malrotation, patella alta, and trochlear dysplasia. Femoral trochlear dysplasia is characterized by a hypoplastic or shallow trochlear groove. CASE REPORT: We report the case of a 31-year-old female with trochlear dysplasia and recurrent patella dislocations, laxity of the medial patellofemoral ligament (MPFL), and high-grade chondromalacia of the trochlea and the patella...
2016: Ochsner Journal
https://www.readbyqxmd.com/read/27988165/increased-femoral-anteversion-influence-over-surgically-treated-recurrent-patellar-instability-patients
#14
Carlos Eduardo Franciozi, Luiz Felipe Ambra, Leonardo José Bernardes Albertoni, Pedro Debieux, Fernando Cury Rezende, Mauricio Ayres de Oliveira, Marcio de Castro Ferreira, Marcus Vinícius Malheiros Luzo
PURPOSE: To verify the influence that increased femoral anteversion (FA) has on patients with recurrent patellar instability (RPI) treated by anteromedialization tibial tubercle osteotomy (TTO) combined with medial patellofemoral ligament reconstruction (MPFLR) and to present the midterm outcomes of these patients. METHODS: From January 2008 to August 2013, skeletally mature patients with RPI and tibial tubercle (TT)-trochlear groove (TG) ≥ 17 mm who underwent anteromedialization TTO combined with MPFLR were evaluated for J sign, patellar glide, apprehension test, increased FA, Caton index, trochlea dysplasia, TT-TG, Kujala, International Knee Documentation Committee subjective knee evaluation form, and Tegner...
December 14, 2016: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/27984689/-congenital-knee-dislocation-case-report
#15
C Arvinius, R Luque, C Díaz-Ceacero, F Marco
Congenital knee dislocation is an infrequent condition with unknown etiology. In some cases it occurs as an isolated condition, while in others it coexists with associated conditions or syndromes. The treatment of congenital knee dislocation is driven by the severity and flexibility of the deformity. The literature includes from serial casting or the Pavlik harness to quadriceps tendon plasty or femoral osteotomies. We report herein the case of a congenital dislocation treated with serial casting with a good outcome...
May 2016: Acta Ortopédica Mexicana
https://www.readbyqxmd.com/read/27984448/novel-spiked-washer-repair-is-biomechanically-superior-to-suture-and-bone-tunnels-for-arcuate-fracture-repair
#16
Saman Vojdani, Laviel Fernandez, Jian Jiao, Tyler Enders, Steven Ortiz, Liangjun Lin, Yi-Xian Qin, David E Komatsu, James Penna, Charles J Ruotolo
OBJECTIVES: Injuries to the posterolateral corner (PLC) of the knee can lead to chronic degenerative changes, external rotation instability, and varus instability if not repaired adequately. A proximal fibula avulsion fracture, referred to as an arcuate fracture, has been described in the literature, but a definitive repair technique has yet to be described. The objective of this study is to present a novel arcuate fracture repair technique, utilizing a spiked-washer with an intramedullary screw, and to compare its biomechanical integrity to a previously described suture and bone tunnel method...
November 16, 2016: Journal of Orthopaedic Trauma
https://www.readbyqxmd.com/read/27957592/-lateral-unicompartmental-knee-arthroplasty-a-challenge
#17
T Walker, P R Aldinger, M R Streit, T Gotterbarm
OBJECTIVE: Joint surface replacement in the lateral compartment by unicondylar knee arthroplasty. INDICATIONS: Lateral unicompartmental osteoarthritis of the knee joint, avascular necrosis of the lateral femoral condyle. CONTRAINDICATIONS: Full thickness cartilage defect in the central part of the medial compartment or in the medial aspect of the patellofemoral joint. Instability/contracture of cruciate and collateral ligaments, valgus deformity >15°, valgus deformity not passively correctable, flexion deformity >15°, an intraoperative flexion <100°, failed upper tibial osteotomy, rheumatoid arthritis...
December 12, 2016: Operative Orthopädie und Traumatologie
https://www.readbyqxmd.com/read/27928730/guided-growth-may-not-be-the-best-option-for-knee-valgus-deformity-in-adolescent-patients-with-morquio-a
#18
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/27919671/supracondylar-femoral-osteotomy-and-knee-joint-replacement-during-the-same-surgical-procedure-in-a-type-a-haemophiliac-patient-with-knee-flexion-deformity-and-ankylosis
#19
Jose Luis Osma Rueda, Alejandra Oliveros Vargas, Cristian David Sosa
BACKGROUND: Haemophilia A is the cause of diverse musculoskeletal disorders such as ankylosis, arthritis and associated angular deformity. There are few reported cases in patients with haemophilia A in which simultaneous supracondylar femoral osteotomy and knee joint replacement has been performed to treat knee angular deformity and ankylosis. Here we present the case of an 18year old male patient, with an evolution of two years, who was unable to walk due to the presence of an untreated supracondylar fracture in the left femur and ipsilateral haemophilic arthropathy which led him to develop an ankylosis in flexion close to 70°...
December 2, 2016: Knee
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
#20
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
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