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Rotational femoral osteotomy

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https://www.readbyqxmd.com/read/29733439/proximal-versus-distal-femoral-derotation-osteotomy-in-bilateral-cerebral-palsy
#1
Mirjam Niklasch, Elizabeth R Boyer, Tom Novacheck, Thomas Dreher, Michael Schwartz
AIM: Femoral derotation osteotomy (FDO) can be conducted either proximally or distally to correct internal rotation gait (IRG) and increased anteversion in children with cerebral palsy (CP). Previous studies with limited numbers of participants have presented comparable short-term static and kinematic outcomes for both techniques. The objective of this retrospective multicentre study was to verify this thesis with a larger number of patients. METHOD: In total, 119 children with CP and IRG were included after matching the groups on preoperative mean stance hip rotation: 67 intertrochanteric (proximal group) FDO (average age at surgery 9y [SD 3y]); 52 supracondylar (distal group) FDO (average age at surgery 12y [SD 3y])...
May 7, 2018: Developmental Medicine and Child Neurology
https://www.readbyqxmd.com/read/29720218/the-anteroposterior-axis-of-the-tibia-is-adjusted-to-approximately-a-right-angle-to-the-anterior-pelvic-plane-in-the-standing-position-in-patients-with-hip-dysplasia-similar-to-normal-subjects-a-cross-sectional-study
#2
Norio Imai, Dai Miyasaka, Hayato Suzuki, Kazuki Tsuchiya, Tomoyuki Ito, Izumi Minato, Naoto Endo
BACKGROUND: We previously described that the anteroposterior (AP) axis of the tibia is approximately perpendicular to the transverse axis of the anterior pelvic plane (APP) in the standing position in healthy subjects. The purpose of this study was to investigate the rotational alignment between the APP and clinical epicondylar axis and the AP axis of the tibia relative to pelvic coordination in the standing position in normal subjects and in women with developmental dysplasia of the hip (DDH) to aid decision making for surgeons in the alignment of implants in total hip or knee arthroplasty...
May 2, 2018: Journal of Orthopaedic Surgery and Research
https://www.readbyqxmd.com/read/29704036/evaluation-of-articular-cartilage-following-rotational-acetabular-osteotomy-for-hip-dysplasia-using-t2-mapping-mri
#3
Takeshi Shoji, Takuma Yamasaki, Soutaro Izumi, Mikiya Sawa, Yuji Akiyama, Yuji Yasunaga, Nobuo Adachi
BACKGROUND: Rotational acetabular osteotomy (RAO) is one of the surgical treatments for acetabular dysplasia, and satisfactory results have been reported. We evaluated the postoperative changes of articular cartilage and whether the pre-operative condition of the articular cartilage influences the clinical results using T2 mapping MRI. METHODS: We reviewed 31 hips with early stage osteoarthritis in 31 patients (mean age, 39.6 years), including three men and 28 women who underwent RAO for hip dysplasia...
April 27, 2018: Skeletal Radiology
https://www.readbyqxmd.com/read/29698301/is-there-an-association-between-borderline-to-mild-dysplasia-and-hip-osteoarthritis-analysis-of-ct-osteoabsorptiometry
#4
Tohru Irie, Daisuke Takahashi, Tsuyoshi Asano, Ryuta Arai, Muhammad Alaa Terkawi, Yoichi M Ito, Norimasa Iwasaki
BACKGROUND: The definitive treatment of borderline-to-mild dysplasia remains controversial. A more comprehensive understanding of the etiology of osteoarthritis (OA) and clarification of any possible association between borderline-to-mild dysplasia and the pathogenesis of OA are essential. QUESTIONS/PURPOSES: (1) Does the distribution of acetabular subchondral bone density increase according to dysplasia severity? (2) Is there an association between borderline-to-mild dysplasia and OA pathogenesis? METHODS: We evaluated bilateral hips of patients with developmental dysplasia of the hip who underwent eccentric rotational acetabular osteotomy (ERAO) for inclusion in the dysplasia group and contralateral hips of patients with unilateral idiopathic osteonecrosis of the femoral head (ONFH) who underwent curved intertrochanteric varus osteotomy (CVO) for the control group...
April 23, 2018: Clinical Orthopaedics and related Research
https://www.readbyqxmd.com/read/29660737/treatment-of-a-paediatric-distal-femoral-malunion-deformity
#5
Greta S Pavarotti, Randy J Boudrieau
OBJECTIVE:  The aim of this article was to describe the surgical re-alignment technique and stabilization of a distal femoral deformity in a 6-week-old, male, Foxhound. METHODS:  A healing metaphyseal fracture, resulting in a valgus deformity with internal rotation, was observed just proximal to the distal femoral physis. The deformity was treated by an opening wedge osteotomy with lateral translation and external rotation of the distal epiphysis using a guide-wire technique; a corticocancellous allograft bridged the defect, which was stabilized with a 2...
April 16, 2018: Veterinary and Comparative Orthopaedics and Traumatology: V.C.O.T
https://www.readbyqxmd.com/read/29599025/the-type-of-approach-does-not-influence-tka-component-position-in-revision-total-knee-arthroplasty-a-clinical-study-using-3d-ct
#6
Filippo-Franco Schiapparelli, Felix Amsler, Michael T Hirschmann
BACKGROUND: The influence of the surgical approach on the position of the prosthetic components in revision of total knee arthroplasties (rTKA) is still not clear. This study compared the medial parapatellar approach (MPA) and lateral parapatellar subvastus approach with tibial tubercle osteotomy (LPA). METHODS: Forty-two consecutive patients underwent rTKA from 2006 to 2016 with either MPA (n=21) or LPA (n=21) because of aseptic loosening, infection, malposition or instability (mean follow-up: 41...
March 26, 2018: Knee
https://www.readbyqxmd.com/read/29589046/-surgical-therapy-of-ischiofemoral-impingement-by-lateralizing-intertrochanteric-osteotomy
#7
REVIEW
C Suren, R Burgkart, I J Banke, G Hertel, J Schauwecker, R von Eisenhart-Rothe, H Gollwitzer
OBJECTIVE: Lateralizing, derotating intertrochanteric varus osteotomy to increase the ischiofemoral space to counter painful impingement of the lesser trochanter and the os ischium with resulting entrapment of quadratus femoris muscle. INDICATIONS: Symptomatic ischiofemoral impingement (IFI) caused by Coxa valga et antetorta, Coxa valga or Coxa antetorta, or a short femoral neck. CONTRAINDICATIONS: Anatomic configuration suggestive of IFI in asymptomatic patients...
March 27, 2018: Operative Orthopädie und Traumatologie
https://www.readbyqxmd.com/read/29582942/-fluoroscopic-based-navigation-in-orthopaedic-trauma-a-review-of-a-large-center-s-experience
#8
Yoram A Weil, Meir Liebergall, Rami Mosheiff, Amal Khoury
INTRODUCTION: Computer Assisted Orthopaedic Surgery (CAOS) was introduced in the late 1990's and early 2000's. Since then its application in orthopaedic trauma has been utilized mainly as augmented fluoroscopy for intraoperative navigation. From 2010 our center implemented an advanced system allowing further expansion of this technology. AIMS: The aim of this study was to describe the experience with an advanced fluoroscopic based CAOS system in our center. METHODS: The BrainLabTM Trauma 3...
March 2018: Harefuah
https://www.readbyqxmd.com/read/29509621/the-acetabular-fossa-may-not-be-located-at-the-true-center-of-the-acetabulum-a-detailed-analysis-using-preoperative-ct-images
#9
Hiroki Shimodaira, Keiji Tensho, Yusuke Akaoka, Suguru Koyama, Masaaki Maruyama, Hiroyuki Kato, Naoto Saito
BACKGROUND: The acetabular fossa is thought to be located in the center of the acetabulum, and acetabular reaming in total hip arthroplasty is conventionally performed in the center of the fossa. However, the actual location of the fossa and the influence that hypoplasia or deformity may have on the position of the fossa are unknown. We hypothesized that the fossa is located in the center of the acetabulum, regardless of hypoplasia or deformity. METHODS: Fifty patients with normal hips (normal hip group), 50 patients with dysplasia who underwent rotational acetabular osteotomy (dysplastic hip group), and 46 patients with osteoarthritis who underwent total hip arthroplasty (osteoarthritic hip group) were evaluated by computed tomography (CT) imaging...
March 7, 2018: Journal of Bone and Joint Surgery. American Volume
https://www.readbyqxmd.com/read/29500091/cementless-total-hip-arthroplasty-in-crowe-iii-and-iv-dysplasia-high-hip-center-and-modular-necks
#10
Maurizio Montalti, Francesco Castagnini, Federico Giardina, Enrico Tassinari, Federico Biondi, Aldo Toni
BACKGROUND: Total hip arthroplasty (THA) in severe developmental dysplasia of the hip (DDH) is a challenging procedure. The most used techniques involve anatomic cup positioning, augmentation femoral osteotomy. However, anatomic cup positioning is not always feasible in severe DDH and osteotomy nonunion may ensue. The purpose of the study was to assess the survivorship, the hip score results, the radiological parameters (fixation, loosening, component position) of a large cohort of patients with Crowe III and IV DDH, treated with high hip center and modular necks THAs...
February 2, 2018: Journal of Arthroplasty
https://www.readbyqxmd.com/read/29484472/evaluation-of-the-three-dimensional-bony-coverage-before-and-after-rotational-acetabular-osteotomy
#11
Takeyuki Tanaka, Toru Moro, Yoshio Takatori, Hirofumi Oshima, Hideya Ito, Naohiko Sugita, Mamoru Mitsuishi, Sakae Tanaka
PURPOSE: Rotational acetabular osteotomy is a type of pelvic osteotomy that involves rotation of the acetabular bone to improve the bony coverage of the femoral head for patients with acetabular dysplasia. Favourable post-operative long-term outcomes have been reported in previous studies. However, there is a paucity of published data regarding three-dimensional bony coverage. The present study investigated the three-dimensional bony coverage of the acetabulum covering the femoral head in hips before and after rotational acetabular osteotomy and in normal hips...
February 26, 2018: International Orthopaedics
https://www.readbyqxmd.com/read/29413787/preoperative-hip-rotation-moments-do-not-predict-long-term-development-after-femoral-derotation-osteotomy-in-children-with-cerebral-palsy
#12
Frank Braatz, Thomas Dreher, Sebastian I Wolf, Mirjam Niklasch
BACKGROUND: Femoral derotation osteotomy (FDO) is the standard treatment for internal rotation gait (IRG) in children with cerebral palsy (CP) although high rates of recurrence have been reported recently. Various factors associated with recurrence could be identified, but no predictor named. RESEARCH QUESTIONS: Does FDO lead to a change of internal transversal hip moments? Are preoperative internal transversal hip moments a predictor for recurrence of IRG? METHODS: 41 children with spastic bilateral CP and 72 limbs that received a FDO (10...
March 2018: Gait & Posture
https://www.readbyqxmd.com/read/29395228/defining-the-medial-lateral-axis-of-the-femur-medical-imaging-conventional-and-functional-calibration-methods-lead-to-differences-in-hip-rotation-kinematics-for-children-with-torsional-deformities
#13
Elyse Passmore, H Kerr Graham, Morgan Sangeux
Hip rotation during gait is a major indicator for femoral derotation osteotomy. However, repeatability of hip rotation is poor because of discrepancies in determining the medial-lateral axis of the femur. Combining 3D gait analysis with medical imaging allows in vivo evaluation of current clinical methods. We used the condylar axis, identified from low dose biplanar radiographs (EOS imaging Inc), as our reference to evaluate conventional, functional calibration and freehand 3D ultrasound methods to define the medial-lateral axis in children with lower-limb torsional deformities...
March 1, 2018: Journal of Biomechanics
https://www.readbyqxmd.com/read/29373454/double-oblique-osteotomy-a-technique-for-correction-of-posttraumatic-deformities-of-the-distal-femur
#14
Michael A Miranda, Joseph P DeAngelis, George H Canizares, Jeffery W Mast
OBJECTIVE: To evaluate the outcomes of a double oblique osteotomy for the management of distal femoral malunions and a combination malunion/nonunion. DESIGN: Case series. SETTING: Level 1/2 hospital. PATIENTS/PARTICIPANTS: Ten patients with a mean age of 50 years (range 30-69 years) with posttraumatic deformities of the distal femur. INTERVENTION: A 2-level, length-sparing osteotomy was performed in accordance with a detailed preoperative plan for correction of the mechanical axis in a distal femoral deformity...
February 2018: Journal of Orthopaedic Trauma
https://www.readbyqxmd.com/read/29353743/long-term-development-of-overcorrection-after-femoral-derotation-osteotomy-in-children-with-cerebral-palsy
#15
Mirjam Niklasch, Matthias C Klotz, Sebastian I Wolf, Thomas Dreher
BACKGROUND: Recent studies showed rates of recurrence of internal rotation gait (IRG) after femoral derotation osteotomy (FDO) up to 40%. Some surgeons even advice overcorrection during FDO to avoid a later recurrence. RESEARCH QUESTION: Evaluation of the long-term development of limbs with initial overcorrection after FDO. METHODS: 29 limbs of 20 children (9.9 ± 3.2 years at surgery) with IRG, cerebral palsy (CP) and more than 5° external hip rotation postoperatively were included retrospectively...
March 2018: Gait & Posture
https://www.readbyqxmd.com/read/29338974/usefulness-of-the-grand-piano-sign-for-determining-femoral-rotational-alignment-in-total-knee-arthroplasty
#16
Takaaki Ohmori, Tamon Kabata, Yoshitomo Kajino, Tadashi Taga, Daisuke Inoue, Takashi Yamamoto, Tomoharu Takagi, Junya Yoshitani, Takuro Ueno, Hiroyuki Tsuchiya
BACKGROUND: The "grand-piano sign" is a well-known indicator of proper rotational femoral alignment. We investigated changes in the shape of the femoral anterior cutting plane by changing the rotational alignment, anterior portion depth, and cutting plane flexion angle. METHODS: We simulated various cutting planes after cutting the anterior portion of the femur next to the distal femoral osteotomy in 50 patients with varus knee and also a femoral anterior osteotomy with four degree (S group) and seven degree (T group) flexion angles regarding the mechanical axis...
January 2018: Knee
https://www.readbyqxmd.com/read/29325188/comparison-of-radiographic-measurements-of-the-femur-in-yorkshire-terriers-with-and-without-medial-patellar-luxation
#17
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
#18
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
#19
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
#20
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
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