Abstract:
PURPOSE:Leg-length changes at total hip arthroplasty (THA) may result from too proximal position of the femoral component, i.e. not being sunk deep enough into the femoral canal due to the size and shape of both medullary canal and implant. Some femoral implants are designed to achieve such fixation in the mediolateral dimension, while others also engage the bone anteroposteriorly. Our aim was to examine the relationship between proximal femoral morphology, osseointegration and leg-length equalization at THA. We asked whether the Dorr classification, femoral cortical index and canal flare index on preoperative radiographs had significant impact on THA aseptic loosening rates and post-operative leg-length discrepancy (LLD). METHODS:Literature review included original articles on proximal femoral morphology with post-operative LLD and other clinical outcomes of THA, published in the last decade. Case reports and biomechanical studies without clinical data were excluded. RESULTS:Higher femoral cortical index and/or canal flare index (corresponding to the Dorr type A) increases the risk of leg lengthening at THA. This is particularly notable in femoral stems with metaphyseal fixation, where high canal flare index has also been linked to osseointegration failure and implant loosening. On the other hand, lower canal flare index (corresponding to the Dorr type C) is more prevalent in the elderly population and increases late periprosthetic fracture rates and stress shielding. Even the most commonly used cementless femoral stems cannot offer optimal fit to intra-/extramedullary geometry or offset restoration in up to 30% of clinical cases. CONCLUSIONS:Femoral morphology can have significant impact on post-operative LLD and osseointegration of cementless THA. Quantitative measurements of the proximal femoral canal may improve the choice of a particular implant and fixation method.
journal_name
Int Orthopjournal_title
International orthopaedicsauthors
Mavčič B,Antolič Vdoi
10.1007/s00264-020-04671-1subject
Has Abstractpub_date
2020-06-22 00:00:00eissn
0341-2695issn
1432-5195pii
10.1007/s00264-020-04671-1pub_type
杂志文章,评审abstract:PURPOSE:Reverse shoulder prostheses have been gaining popularity in recent years. A short metaphyseal stem design will allow bone stock preservation and minimize stem related complications. We examined the clinical and radiographic short-term outcome of a short metaphyseal stem reverse shoulder arthroplasty. METHODS:T...
journal_title:International orthopaedics
pub_type: 杂志文章
doi:10.1007/s00264-014-2328-8
更新日期:2014-06-01 00:00:00
abstract:PURPOSE:The purpose of this study was to evaluate whether femoral antetorsion affects the range of motion (ROM) following total hip arthroplasty (THA) using 3D dynamic analysis. METHODS:Using 3D computed tomography (CT) data of 71 patients (71 hips) who underwent THA, we calculated antetorsion of the femoral neck, fle...
journal_title:International orthopaedics
pub_type: 杂志文章
doi:10.1007/s00264-014-2452-5
更新日期:2015-01-01 00:00:00
abstract::The Mennen plate has been used for osteosynthesis of 5 femoral fractures, 4 of which were at the tip of a prosthesis stem. Union was achieved in 2 fractures, and loss of fixation of the plate in three. ...
journal_title:International orthopaedics
pub_type: 杂志文章
doi:10.1007/s002640050234
更新日期:1998-01-01 00:00:00
abstract::We carried out experiments in rabbits to determine whether treating nerve transplants with gradually increasing concentrations of ethanol, ether and ficin would inhibit the graft-host immune reaction to the allograft. After treatment with ethanol, the basal laminar scaffold of the Schwann cell remained intact and ther...
journal_title:International orthopaedics
pub_type: 杂志文章
doi:10.1007/BF00183371
更新日期:1990-01-01 00:00:00
abstract::Proliferating cell nuclear antigen (PCNA) is one of the cell cycle-related proteins directly involved in DNA synthesis. It is a marker of cellular proliferation and has been shown to correlate with ploidy and proliferative activity of cells. Its expression has been used to estimate the growth fraction of human cancer ...
journal_title:International orthopaedics
pub_type: 杂志文章
doi:10.1007/s002640000147
更新日期:2000-01-01 00:00:00
abstract:BACKGROUND:Periprosthetic tissue cultures, sonication and synovial fluid cultures remain the gold standard for prosthetic joint infection (PJI) diagnosis. However, some 15-20% culture-negative PJI are still reported. Therefore, there is the need for other diagnostic criteria. One point of concern relative to the differ...
journal_title:International orthopaedics
pub_type: 杂志文章
doi:10.1007/s00264-017-3430-5
更新日期:2017-07-01 00:00:00
abstract:PURPOSE:Restoring a neutral mechanical axis in total knee arthroplasty (TKA) (within ±3° of varus/valgus) is associated with superior functional outcome and reduced early implant failure. Using conventional alignment jigs results in malalignment in >20 % of cases. In this study, we investigated the reduction of outlier...
journal_title:International orthopaedics
pub_type: 杂志文章,随机对照试验
doi:10.1007/s00264-014-2529-1
更新日期:2015-03-01 00:00:00
abstract:PURPOSE:The reporting of gait analysis data on operated fractures of the tibial plateau, while extensive for studies of knee osteoarthritis of mostly undisclosed aetiology and ACL deficient knees, is rather limited in literature. METHODS:In the present study we investigated 25 tibial plateau fractures classified as Sc...
journal_title:International orthopaedics
pub_type: 杂志文章
doi:10.1007/s00264-015-2691-0
更新日期:2015-07-01 00:00:00
abstract:PURPOSE:To identify potential risk factors and micro-organisms associated with prosthetic joint infection following primary total knee replacement surgery. HYPOTHESIS OF STUDY:Our hypothesis is that body mass index (BMI), operative time, type of surgery, and order of surgery especially in bilateral simultaneous cases ...
journal_title:International orthopaedics
pub_type: 杂志文章,多中心研究
doi:10.1007/s00264-019-04472-1
更新日期:2020-02-01 00:00:00
abstract::We have reviewed 109 out of 122 operations performed for malunion of the distal radius. An excellent or good result was achieved in 80%, with 3% poor and 7% mediocre. Complications occurred in 12.6%. Accurate assessment of the frontal and sagittal angles of the articular surface of the distal radius was necessary in p...
journal_title:International orthopaedics
pub_type: 杂志文章
doi:10.1007/BF00182984
更新日期:1992-01-01 00:00:00
abstract:PURPOSE:The aim of this study was to determine whether distal locking using an electromagnetic-manual guided distal locking decreases the malrotation rate in femur fractures treated with intramedullary nailing. METHODS:A total of 113 adult patients having unilateral femoral shaft fractures treated using IM nails were ...
journal_title:International orthopaedics
pub_type: 杂志文章
doi:10.1007/s00264-014-2626-1
更新日期:2015-03-01 00:00:00
abstract::Over 10 years, 842 consecutive autopsies on patients dying from a malignant neoplasm were evaluated microscopically to determine the incidence of spinal and skeletal metastases. Vertebral wedging, sclerosis and areas of osteolysis were defined as features of spinal metastases. The incidence was 30.6%, 65% of which aro...
journal_title:International orthopaedics
pub_type: 杂志文章
doi:10.1007/BF00181116
更新日期:1995-01-01 00:00:00
abstract:PURPOSE:To compare the results of two groups of patients affected by osteochondritis dissecans (OCD) of the knee and treated with either osteochondral autologous transplantation (OAT) or bone-cartilage paste grafting (PG). METHODS:A total of 27 patients affected by OCD lesions of the femoral condyles were included: 15...
journal_title:International orthopaedics
pub_type: 杂志文章
doi:10.1007/s00264-020-04804-6
更新日期:2021-02-01 00:00:00
abstract:INTRODUCTION:Talus fractures are not uncommon and one of the serious fractures in the foot and ankle. Peroneal tendon dislocation is one of the commonly missed soft tissue injuries which may have significant impact on the outcomes including persistent pain and swelling. They have been reported to be associated with cal...
journal_title:International orthopaedics
pub_type: 杂志文章
doi:10.1007/s00264-020-04534-9
更新日期:2020-05-01 00:00:00
abstract:PURPOSE:The purpose of this study was to quantify limitations in sagittal ankle range of motion (ROM) at least two years after lateral column lengthening osteotomy of the calcaneus (LLC) and their implications regarding quality of life. METHODS:Fifteen patients with a mean follow-up of 80 ± 27 months after LLC and 15 ...
journal_title:International orthopaedics
pub_type: 杂志文章
doi:10.1007/s00264-020-04526-9
更新日期:2020-06-01 00:00:00
abstract:AIM OF THE STUDY:To determine if pre-operative radiologic minimal joint space width (mJSW) is related to the outcome of total knee arthroplasty (TKA) (primary hypothesis). Likewise, the aim was to test if pre-operative mJSW is related to prosthesis survival (secondary hypothesis). METHODS:A retrospective comparative a...
journal_title:International orthopaedics
pub_type: 杂志文章
doi:10.1007/s00264-018-4185-3
更新日期:2019-08-01 00:00:00
abstract::A case of bilateral habitual dislocation of the patella associated with cleft lip and palate, and short metatarsals, metacarpals and phalanges is reported. The possible cause of habitual dislocation is discussed in the light of 20 cases which have been seen by the author. ...
journal_title:International orthopaedics
pub_type: 杂志文章
doi:10.1007/BF00183358
更新日期:1990-01-01 00:00:00
abstract::We describe a method of quantifying the lateral/medial thrust of the knee which occurs in the early phase of walking. We have used this method to evaluate the effects of wedged insoles on the lateral and medial thrust for normal knees and knees with unicompartment osteoarthritis (OA). A laterally elevated (valgus) ins...
journal_title:International orthopaedics
pub_type: 杂志文章
doi:10.1007/s002640050174
更新日期:1997-01-01 00:00:00
abstract::We measured the size and volume of the femoral broaches and stems supplied with three commercial total hip replacement (THR) systems (JRI Furlong, Biomet Stanmore, and Howmedica Exeter). Using an in vitro method, we created cement mantles that could be directly measured. The broaches supplied with the Biomet Stanmore ...
journal_title:International orthopaedics
pub_type: 杂志文章
doi:10.1007/s00264-003-0509-y
更新日期:2004-02-01 00:00:00
abstract:PURPOSE:Traditionally and since Neer, the humeral side of shoulder arthroplasty consisted of a stemmed component but the real need for stem fixation in total shoulder arthroplasty (TSA) has barely been investigated. The current study evaluated the clinical and radiological outcomes with a stemless TSA. METHODS:Forty-s...
journal_title:International orthopaedics
pub_type: 杂志文章
doi:10.1007/s00264-016-3371-4
更新日期:2017-05-01 00:00:00
abstract::Eleven cases of extra-articular tuberculous osteomyelitis are presented. Eight of the patients were children. Ten were treated by curettage and chemotherapy and the diagnosis proved by histology or positive culture of the tubercle bacillus. One case was diagnosed because she also had tuberculous salpingitis, and she w...
journal_title:International orthopaedics
pub_type: 杂志文章
doi:10.1007/s002640050056
更新日期:1996-01-01 00:00:00
abstract:BACKGROUND:Various open injury scores have been devised to aid the difficult decision of salvage or amputation following open fractures of the lower limb. Our aim of the study was to compare the performance of mangled extremity severity score (MESS), limb salvage index (LSI), orthopaedic trauma association-open fractur...
journal_title:International orthopaedics
pub_type: 杂志文章
doi:10.1007/s00264-020-04538-5
更新日期:2020-09-01 00:00:00
abstract::The aim of this investigation was to examine the effect of short-term immobilization on subchondral cortical and trabecular bone tissue in the rat tibia and to determine whether there was any difference when the knee was immobilized in extension or flexion. Thirty-six male rats were used in this study, and in 18 the k...
journal_title:International orthopaedics
pub_type: 杂志文章
doi:10.1007/BF00266984
更新日期:1988-01-01 00:00:00
abstract:PURPOSE:We reviewed our experience with the management of B2 and B3 femoral periprosthetic fractures using a distally fixed modular femoral stem in 55 patients. METHODS:All periprosthetic fractures were managed immediately after injury without using allograft; 53 hips were available for a mean follow up of 67 months. ...
journal_title:International orthopaedics
pub_type: 杂志文章
doi:10.1007/s00264-011-1371-y
更新日期:2012-05-01 00:00:00
abstract:PURPOSE:To investigate the effect of C3/4 disc degeneration on cervical spondylosis with dizziness (CSD) and to assess the curative effect of anterior cervical decompression and fusion (ACDF) in patients with CSD. METHOD:Four hundred nineteen patients who underwent ACDF for treatment of myelopathy or radiculopathy wer...
journal_title:International orthopaedics
pub_type: 杂志文章
doi:10.1007/s00264-020-04531-y
更新日期:2020-06-01 00:00:00
abstract::Five cases of fracture of the lateral tibial condyle of the split-depression type were treated by elevation of the depressed fragment, bone grafting and cancellous bone screws. During the operation, tantalum markers were inserted into the depressed fragment and the tibial metaphysis for radiographic stereophotogrammet...
journal_title:International orthopaedics
pub_type: 杂志文章
doi:10.1007/BF00192467
更新日期:1994-06-01 00:00:00
abstract::We describe the results of a retrospective analysis of patients with microbiologically proven infection, who underwent revision TKA between 1994 and 2008. Of the 121 patients included in the study, 61 (50%) were male and 60 (50%) were female. The mean age was 71 (range 42-88) years. The most common organisms identifie...
journal_title:International orthopaedics
pub_type: 杂志文章
doi:10.1007/s00264-009-0797-y
更新日期:2010-04-01 00:00:00
abstract:PURPOSE:Although there are various new scaffold-based techniques for cartilage regeneration it remains unclear up to which defect size they can be used. The present study reports of a cell-free collagen type I gel matrix for the treatment of large cartilage defects of the knee after a two-year follow-up. METHODS:Twent...
journal_title:International orthopaedics
pub_type: 杂志文章
doi:10.1007/s00264-015-2695-9
更新日期:2015-12-01 00:00:00
abstract::We applied four published classifications for assessment of heterotopic ossification after total hip arthroplasty (Arcq, Brooker, DeLee and Della Valle [1, 2, 5, 6]. The average incidence of heterotopic ossification varied from 19.8% to 27.7%. The inter-observer reliability of the various classifications was determine...
journal_title:International orthopaedics
pub_type: 杂志文章
doi:10.1007/s00264-004-0603-9
更新日期:2005-06-01 00:00:00
abstract::The aim of our study was to determine the radiographic prevalence of hip and knee osteoarthritis and compare our results with prevalence data reported by other studies, as no similar study had been performed in Hungary previously. Our aim was also to investigate the usefulness of the different radiological scoring met...
journal_title:International orthopaedics
pub_type: 杂志文章
doi:10.1007/s00264-010-1069-6
更新日期:2011-07-01 00:00:00