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Rotational femoral osteotomy

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https://www.readbyqxmd.com/read/29325188/comparison-of-radiographic-measurements-of-the-femur-in-yorkshire-terriers-with-and-without-medial-patellar-luxation
#1
Michal Žilinčík, Marián Hluchý, Ladislav Takáč, Valent Ledecký
OBJECTIVE:  This article aimed to compare measurements of anatomical angles of the femurs, based on radiography, in Yorkshire Terriers without or with various grades of medial patellar luxation (MPL) based on radiography. METHODS:  The skeletally mature Yorkshire Terrier dogs without MPL and with various grades of MPL were included in this prospective study. Cases with other orthopaedic disorders were excluded. For inclusion of the dog, it was required that standardized digital radiographs of both femurs in craniocaudal and axial directions were available...
January 2018: Veterinary and Comparative Orthopaedics and Traumatology: V.C.O.T
https://www.readbyqxmd.com/read/29316952/risk-factor-analysis-for-postoperative-complications-requiring-revision-surgery-after-transtrochanteric-rotational-osteotomy-for-osteonecrosis-of-the-femoral-head
#2
Kazuyuki Karasuyama, Goro Motomura, Satoshi Ikemura, Jun-Ichi Fukushi, Satoshi Hamai, Kazuhiko Sonoda, Yusuke Kubo, Takuaki Yamamoto, Yasuharu Nakashima
BACKGROUND: This study investigated the risk factors for postoperative complications requiring revision surgery within 3 years after transtrochanteric rotational osteotomy (TRO) for osteonecrosis of the femoral head (ONFH). METHODS: We reviewed 127 patients (147 hips) who underwent TRO (anterior or posterior rotational osteotomy) for ONFH between January 2002 and December 2014. Two patients were lost to follow-up, and five patients with progression of femoral head collapse requiring a salvage procedure such as total hip arthroplasty within 3 years after TRO were excluded...
January 10, 2018: Journal of Orthopaedic Surgery and Research
https://www.readbyqxmd.com/read/29284442/how-to-avoid-unintended-valgus-alignment-in-distal-femoral-derotational-osteotomy-for-treatment-of-femoral-torsional-malalignment-a-concept-study
#3
Florian B Imhoff, Bastian Scheiderer, Philip Zakko, Elifho Obopilwe, Franz Liska, Andreas B Imhoff, Augustus D Mazzocca, Robert A Arciero, Knut Beitzel
BACKGROUND: Defining the optimal cutting plane for derotational osteotomy at the distal femur for correction of torsion in cases of patellofemoral instability is still challenging. This preliminary study investigates changes of frontal alignment by a simplified trigonometrical model and demonstrates a surgical guidance technique with the use of femur cadavers. The hypothesis was that regardless of midshaft bowing, a cutting plane perpendicular to the virtual anatomic shaft axis avoids unintended valgus malalignment due to derotation...
December 29, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/29216705/-functional-results-of-open-wedge-osteotomies-in-lower-limb-angular-deformities-in-teenagers
#4
C Orellana-Reta, L A Valdez-Jiménez
OBJECTIVE: The aim of this study was to evaluate the functional and radiographic results of adolescent patients with angular deformities of the pelvic limbs treated with an open wedge osteotomy system. MATERIAL AND METHODS: Observational, prospective, analytical and cross-sectional study of patients with angular deformity of the pelvic limbs treated with an open wedge osteotomy. We made a radiographic evaluation of the femorotibial angle, MAD angle, lower limb discrepancy, and pre- and postoperative degrees of the rotational center of deformity (CORA), as well as a telephone survey of the postoperative functional evaluation IKDC 2000...
May 2017: Acta Ortopédica Mexicana
https://www.readbyqxmd.com/read/29201204/a-rabbit-model-of-implant-related-osteomyelitis-inoculated-with-biofilm-after-open-femoral-fracture
#5
Xiang Zhang, Yun-Fei Ma, Lei Wang, Nan Jiang, Cheng-He Qin, Yan-Jun Hu, Bin Yu
Currently, animal models used in research on implant-associated osteomyelitis primarily use intramedullary fixation and initial inoculum of planktonic bacterial cells. However, these techniques have certain limitations, including lack of rotational stability and instable inoculation. To improve these models, the present study aimed to establish a novel rabbit model of implant-associated osteomyelitis using biofilm as the initial inoculum following plate fixation of the femoral fracture. A total of 24 New Zealand White rabbits were randomly divided into two equal groups...
November 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29080951/morphological-variation-of-the-anterior-inferior-iliac-spine-affects-hip-range-of-motion-in-flexion-after-rotational-acetabular-osteotomy
#6
Hidetoshi Hamada, Masaki Takao, Takashi Sakai, Nobuhiko Sugano
PURPOSE: Reduced range of motion (ROM) in flexion and internal rotation are associated with impaired activities of daily living (ADL) after rotational acetabular osteotomy (RAO). This study focused on the morphological variation of the anterior inferior iliac spine in developmental dysplasia of the hip (DDH) and its impact on post-operative bony ROM after RAO. This study aimed to investigate the association between bony ROM after RAO and pre-operative morphological factors of the pelvis and femur, including a positional variation of the anterior inferior iliac spine...
October 28, 2017: International Orthopaedics
https://www.readbyqxmd.com/read/29021887/a-modified-technique-of-fixation-for-proximal-femoral-valgus-osteotomy-in-abnormal-bone-a-report-of-two-cases
#7
S Logheswaren, A R Sulaiman, I Munajat
The ideal size of intramedullary device to fix corrective osteotomy of proximal femur in abnormal bone in children and small patients may not be easily available. We report the successful use of Rush rod in combination with multiple Kirschner wires to fix the corrective osteotomy of coxa vara and shepherd crook deformity in two patients with osteogenesis imperfecta and fibrous dysplasia. The union was achieved on time, neck shaft angle and rotation were maintained.
July 2017: Malaysian Orthopaedic Journal
https://www.readbyqxmd.com/read/28945686/an-anatomic-study-on-whether-femoral-version-originates-in-the-neck-or-the-shaft
#8
Hunter D Archibald, Kathleen F Petro, Raymond W Liu
BACKGROUND: Femoral anteversion is generally asymptomatic but can result in lower extremity issues like patellofemoral instability and pain. Surgical correction of anteversion can be performed proximal, mid shaft or distal. A better understanding of the specific location of the rotational deformity can help guide the optimal location of the osteotomy. In this study we examine the contribution of the femoral neck and shaft to total femoral version. METHODS: We studied 590 pairs of well-preserved cadaveric femurs...
September 22, 2017: Journal of Pediatric Orthopedics
https://www.readbyqxmd.com/read/28808753/segmental-torsion-assessment-is-a-reliable-method-for-in-depth-analysis-of-femoral-alignment-in-computer-tomography
#9
Peter Wilhelm Ferlic, Armin Runer, Christopher Seeber, Maria Thöni, Gerd Seitlinger, Michael Christian Liebensteiner
PURPOSE: De-rotational osteotomies are indicated in patients with pathologic femoral torsion. However, there is disagreement whether an osteotomy should be performed proximally or distally. Conventionally only the total torsion is measured, which does not allow differentiation between a torsional deformity located in the proximal or distal metaphysis or the diaphysis. The aim of this study is to validate a new multi-level measurement protocol for evaluation of the magnitude of torsion of the respective femoral segments in CT...
August 14, 2017: International Orthopaedics
https://www.readbyqxmd.com/read/28782700/effects-of-intertrochanteric-osteotomy-plane-and-preoperative-femoral-anteversion-on-the-postoperative-morphology-of-the-proximal-femur-in-transtrochanteric-anterior-rotational-osteotomy-3d-ct-based-simulation-study
#10
K Sonoda, G Motomura, S Ikemura, Y Kubo, T Yamamoto, Y Nakashima
BACKGROUND: Transtrochanteric anterior rotational osteotomy (ARO) is joint-preserving surgery for patients with osteonecrosis of the femoral head (ONFH). During ARO, femoral neck-shaft varus angulation by changing intertrochanteric osteotomy plane is often designed to obtain a sufficient postoperative intact ratio. However, the effect of intertrochanteric osteotomy plane on postoperative femoral anteversion has not been well examined. Therefore, we performed a simulation study of ARO to determine how intertrochanteric osteotomy plane and preoperative femoral anteversion affect both femoral neck-shaft varus angle and postoperative femoral anteversion...
August 3, 2017: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://www.readbyqxmd.com/read/28777285/3d-modeling-of-lower-extremities-with-biplanar-radiographs-reliability-of-measures-on-subsequent-examinations
#11
David E Westberry, Ashley M Carpenter
BACKGROUND: Biplanar radiography with 3-dimensional (3D) modeling (EOS) provides a comprehensive assessment of lower limb alignment in an upright weight-bearing position with less radiation than conventional radiography. A study was performed to assess the consistency and reliability of 2 lower extremity 3D biplanar radiograph models created at least 1 year apart in a pediatric population. METHODS: All patients who had 2 lower extremity radiographic evaluations with EOS performed at visits a minimum of 1 year apart were reviewed...
August 2, 2017: Journal of Pediatric Orthopedics
https://www.readbyqxmd.com/read/28749032/hip-internal-rotation-in-cerebral-palsy-does-femoral-derotation-osteotomy-influence-abductor-insufficiency
#12
Bruno Dohin
No abstract text is available yet for this article.
September 2017: Developmental Medicine and Child Neurology
https://www.readbyqxmd.com/read/28715039/erratum-to-computed-tomographic-evaluation-of-femoral-and-tibial-conformation-in-english-staffordshire-bull-terriers-with-and-without-congenital-medial-patellar-luxation
#13
Mark Newman, Katja Voss
OBJECTIVE: To compare hindlimb conformation of English Staffordshire Bull Terriers with and without medial patellar luxation using computed tomography. METHODS: Hindlimb computed tomography (CT) was performed on six English Staffordshire Bull Terriers with grade II or III medial patellar luxation, and six without medial patellar luxation. Inclination angle, femoral condyle trochanteric angle, anteversion angle (AA), distal anteversion angle (DAA), proximal anteversion angle (PAA), femoral varus angle (FVA), tibial valgus angle (TVA), and tibial torsion angle (TTA) were measured...
July 10, 2017: Veterinary and Comparative Orthopaedics and Traumatology: V.C.O.T
https://www.readbyqxmd.com/read/28678149/periacetabular-quadruple-osteotomy-of-the-pelvis-in-older-children-computed-tomography-scan-analysis-of-acetabular-retroversion-and-anterior-overcoverage-of-the-hip-preventing-femoral-acetabular-impingement
#14
Roger Jawish, Hassan Najdi, Ali Krayan
The periacetabular quadruple osteotomy of the pelvis (QOP), with the osteotomy of ischial spine to release the sacrospinal ligament, is reserved for older children with low potential of remodeling. Different parameters were studied with computed tomography (CT) scan before (pre-OH) and after surgery (post-OH) and for nonoperated hip (NOH). The study determined an optimal method to avoid retroversion and excessive anterior coverage. Fifteen QOP were performed in 13 patients, ranging in age from 10 to 15 years...
July 3, 2017: Journal of Pediatric Orthopedics. Part B
https://www.readbyqxmd.com/read/28675371/proximal-femoral-derotation-osteotomy-for-idiopathic-excessive-femoral-anteversion-and-intoeing-gait
#15
Gohar Naqvi, Kuldeep Stohr, Andreas Rehm
AIM: The purpose of this study is to assess the symptoms caused by excessive femoral anteversion and the outcomes of femoral derotation osteotomy. METHODS: We reviewed data on patients who underwent proximal femoral derotation osteotomy for symptomatic intoeing gait caused by femoral anteversion. Only symptomatic patients were considered for corrective derotation osteotomy. Degree of femoral anteversion was confirmed on computed tomography (CT) scan. RESULTS: Thirty-five extremities were operated in 21 patients with an average age of 13...
2017: SICOT-J
https://www.readbyqxmd.com/read/28660621/changes-in-hip-abductor-moment-3-or-more-years-after-femoral-derotation-osteotomy-among-individuals-with-cerebral-palsy
#16
Elizabeth R Boyer, Tom F Novacheck, Michael H Schwartz
AIM: To examine the effect of femoral derotation osteotomy (FDO) on dimensionless hip abductor moment during gait in children with cerebral palsy. METHODS: We retrospectively analyzed data from independent ambulators within our database. Postoperative visits 1 year (short-term) and at least 3 years (mid-term) were analyzed. We estimated the coronal plane hip abductor moment arm based on musculoskeletal modeling that accounted for anteversion and hip rotation. RESULTS: There were 140 individuals with a short-term analysis (77 males, 63 females; age at surgery 9y 11mo [range 4y 5mo-17y 5mo]) and 29 with mid-term analysis (15 males, 14 females; age at surgery 8y 7mo [range 4y 5mo-13y 1mo])...
September 2017: Developmental Medicine and Child Neurology
https://www.readbyqxmd.com/read/28660434/decortication-and-osteotomy-for-the-correction-of-multiplanar-deformity-in-the-treatment-of-malunion-in-adult-diaphyseal-femoral-deformity-a-case-series-and-technique-description
#17
S Middleton, R W Walker, M Norton
AIM: To review patients that have undergone correction of a symptomatic femoral malunion using osteotomy combined with decortication. METHODS: A retrospective review of all patients who have undergone decortication and multiplanar osteotomy, looking at the pre-operative deformity, correction achieved, time to union and complications. RESULTS: Seven patients underwent correction under the senior author from 2003 to 2012. Average age was 46 years (range 32-60 years)...
June 28, 2017: European Journal of Orthopaedic Surgery & Traumatology: Orthopédie Traumatologie
https://www.readbyqxmd.com/read/28634093/total-hip-arthroplasty-after-transtrochanteric-rotational-osteotomy-for-osteonecrosis-of-the-femoral-head-a-mean-10-year-follow-up
#18
Yusuke Osawa, Taisuke Seki, Daigo Morita, Yasuhiko Takegami, Toshiaki Okura, Naoki Ishiguro
BACKGROUND: The objective of the present study was to investigate clinical, quality of life, and radiographic outcomes of patients who underwent total hip arthroplasty (THA) after transtrochanteric rotational osteotomy (TRO) for osteonecrosis of the femoral head (ONFH). METHODS: We performed a case-control study. The participants were 29 patients (34 hips) who underwent THA after TRO (TRO group). These patients had a mean age at surgery of 51.6 years (range, 30-72 years) and underwent postoperative follow-up for a mean period of 10...
May 18, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28630740/the-effects-of-hip-abduction-on-sciatic-nerve-biomechanics-during-terminal-hip-flexion
#19
Hal David Martin, Anthony N Khoury, Ricardo Schroder, Juan Gomez-Hoyos, Samrat Yeramaneni, Manoj Reddy, Ian James Palmer
Terminal hip flexion contributes to increased strain in peripheral nerves at the level of the hip joint. The effects of hip abduction and femoral version on sciatic nerve biomechanics are not well understood. A decrease in sciatic nerve strain will be observed during terminal hip flexion and hip abduction, independent of femoral version. Six un-embalmed human cadavers were utilized. Three Differential Variable Reluctance Transducers (DVRTs) sensors were placed on the sciatic nerve while the leg was flexed to 70° with a combination of - 10°, 0°, 20° and 40° adduction/abduction...
July 2017: Journal of Hip Preservation Surgery
https://www.readbyqxmd.com/read/28630736/abnormal-femoral-antetorsion-a-subtrochanteric-deformity
#20
Guy Waisbrod, Florian Schiebel, Martin Beck
Femoral rotational malalignment is associated with pain and functional disability and may be a contributing factor to hip impingement as well as to instability. In general, the deformity can be addressed surgically by rotational osteotomy. However, the anatomic location of the deformity is debated. The goal of the present study was to narrow down the anatomic site of deformity using the lesser trochanter (LT) as an additional landmark. One hundred and eight patients underwent computer tomography (CT)-based rotational analysis of their lower extremities...
July 2017: Journal of Hip Preservation Surgery
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