Abstract:
PURPOSES:To examine radiographically the component motion in a bipolar prosthesis and to determine whether the self-centering mechanism really works in vivo. METHODS:38 patients with 41 bipolar hip endoprostheses (30 for coxarthrosis and 11 for osteonecrosis of femoral head) were included in this study. Two radiographs of each case were taken to evaluate the self-centering mechanism. The first anteroposterior radiograph of both hip joints was taken at the maximum abduction while the patient standing on the endoprosthetic leg. The second radiograph was taken after the patient returned to neutral position while standing on 2 legs. In the present study, the order in which the radiographs were taken differed from previously reported studies. The radiographs were analysed using the method similar to that of Drinker and Murray. The adductive motion from abduction to a neutral position is within the range of inner bearing oscillation. RESULTS:The outer head alignment changed from 23 degrees to 12 degrees in the patients with osteonecrosis. However, the valgus position of the outer head (36 degrees) remained unchanged in the patients with coxarthrosis standing on 2 legs in the neutral position. CONCLUSION:The self-centering mechanism of the bipolar endoprosthesis functioned in the patients with osteonecrosis, but did not work in the coxarthrosis group.
journal_name
J Orthop Surg (Hong Kong)journal_title
Journal of orthopaedic surgery (Hong Kong)authors
Tsumura H,Kaku N,Torisu Tdoi
10.1177/230949900501300108subject
Has Abstractpub_date
2005-04-01 00:00:00pages
46-51issue
1eissn
1022-5536issn
2309-4990journal_volume
13pub_type
杂志文章abstract:PURPOSE:To evaluate the mid-term outcome of anterior cruciate ligament (ACL) reconstruction using the medial third of the patellar tendon as the bone-patellar tendon-bone (BPTB) graft. METHODS:79 men (34 right knees and 45 left knees) aged 20 to 52 (mean, 28) years underwent ACL reconstruction using the medial third o...
journal_title:Journal of orthopaedic surgery (Hong Kong)
pub_type: 杂志文章
doi:10.1177/230949901101900219
更新日期:2011-08-01 00:00:00
abstract::PURPOSE. To compare the rates of joint hypermobility in patients with and without anterior cruciate ligament (ACL) injury. METHODS. Records of 135 men and 75 women (mean age, 24.6 years) who underwent ACL reconstructions were reviewed and compared with 55 male and 35 female controls with no knee injury. Joint hypermob...
journal_title:Journal of orthopaedic surgery (Hong Kong)
pub_type: 杂志文章
doi:10.1177/230949901302100213
更新日期:2013-08-01 00:00:00
abstract:BACKGROUND:In vivo three-dimensional (3D) kinematics of the scapula after reverse total shoulder arthroplasty (rTSA) have been sparsely investigated. The aim of this study was to analyze static and dynamic kinematic alterations of the scapula after rTSA in vivo with the use of computer-aided 3D reconstruction program. ...
journal_title:Journal of orthopaedic surgery (Hong Kong)
pub_type: 杂志文章
doi:10.1177/2309499020921979
更新日期:2020-01-01 00:00:00
abstract::Due to accurate preoperative imaging techniques, early diagnosis and effective chemotherapy, many tumors arising in the metaphyseo-diaphyseal regions of long bones can be segmentally resected with joint preservation. The intercalary resection of malignant bone tumor results in a bone defect which can represent a chall...
journal_title:Journal of orthopaedic surgery (Hong Kong)
pub_type: 杂志文章,评审
doi:10.1177/2309499019832970
更新日期:2019-01-01 00:00:00
abstract:PURPOSE:To assess the clinical outcome of unreamed intramedullary interlocking nailing in open fractures of tibia, and to evaluate the incidence of complications in these open fractures as a result of the unreamed intramedullary nailing. METHODS:Between June 1999 and May 2000, a total of 60 cases of open tibial shaft ...
journal_title:Journal of orthopaedic surgery (Hong Kong)
pub_type: 杂志文章
doi:10.1177/230949900401200215
更新日期:2004-12-01 00:00:00
abstract::Pigmented villonodular synovitis of the elbow is rare and even rarer in children. We report a case of pigmented villonodular synovitis of the elbow in a 6-year-old girl who underwent total synovectomy after the diagnosis was confirmed by biopsy. The osteochondral defect at the olecranon was filled with calcium phospha...
journal_title:Journal of orthopaedic surgery (Hong Kong)
pub_type: 杂志文章
doi:10.1177/230949900701500124
更新日期:2007-04-01 00:00:00
abstract:PURPOSE:Expandable endoprosthesis allows limb salvage in children with an option to leading a better life. However, the revision rate and implant-related complications impose as a limitation in the skeletal immature. This study investigates the functional outcomes and complications related to expandable endoprosthesis ...
journal_title:Journal of orthopaedic surgery (Hong Kong)
pub_type: 杂志文章
doi:10.1177/2309499019850313
更新日期:2019-05-01 00:00:00
abstract:BACKGROUND:Sports injury prevention training programs have been reported to be effective in decreasing the incidence of injuries. The aim of this study was to evaluate the effects of a 6-month training period, using part 2 of the FIFA11+ program (the Fédération Internationale de Football), on the activation and strengt...
journal_title:Journal of orthopaedic surgery (Hong Kong)
pub_type: 杂志文章
doi:10.1177/2309499019891541
更新日期:2020-01-01 00:00:00
abstract:PURPOSE:To report on 14 consecutive cases of occipitocervical fixation. METHODS:Records of 8 men and 6 women aged 40 to 81 (mean, 57) years who underwent occipitocervical fixation and were followed up for a minimum of 2 years were retrospectively reviewed. Neurological grading was assessed before and after surgery usi...
journal_title:Journal of orthopaedic surgery (Hong Kong)
pub_type: 杂志文章
doi:10.1177/230949900701500317
更新日期:2007-12-01 00:00:00
abstract::Tears of the triangular fibrocartilage complex (TFCC) often lead to chronic wrist pain. The commonly used 2-needle outside-in and inside-out suturing techniques require an extra incision to tie the sutures subcutaneously. We use a practical and cost-effective arthroscopic technique for treatment of peripheral Palmer t...
journal_title:Journal of orthopaedic surgery (Hong Kong)
pub_type: 杂志文章
doi:10.1177/230949900901700224
更新日期:2009-08-01 00:00:00
abstract:PURPOSE:This study aims at sharing our experience as how to obtain and identify axial view image of the acetabular anterior column in patients. METHODS:Pelvic computed tomography data of six normal adults were used to reconstruct three-dimensional (3D) models. The transparency of each 3D model was downgraded at the vi...
journal_title:Journal of orthopaedic surgery (Hong Kong)
pub_type: 杂志文章
doi:10.1177/2309499016685012
更新日期:2017-01-01 00:00:00
abstract:PURPOSE:To assess the correlation between low back pain and a high-intensity zone (HIZ) of the lumbar disc in Indian patients. METHODS:200 patients with low back and/or leg pain underwent magnetic resonance imaging of the lumbosacral spine. The location and severity of pain and disability were assessed using the pain ...
journal_title:Journal of orthopaedic surgery (Hong Kong)
pub_type: 杂志文章
doi:10.1177/230949900901700214
更新日期:2009-08-01 00:00:00
abstract:PURPOSE:To review the outcome of acetabular revision with bone grafting and cementation for aseptic loosening after primary Charnley low-friction hip arthroplasty with structural bulk autografts in 15 patients. METHODS:Records were reviewed for 3 men and 12 women aged 31 to 72 (mean, 53) years who underwent acetabular...
journal_title:Journal of orthopaedic surgery (Hong Kong)
pub_type: 杂志文章
doi:10.1177/1602400311
更新日期:2016-12-01 00:00:00
abstract::We report on a 30-year-old haemophilic man with a pelvic pseudotumour compressing adjacent structures causing pain and swelling and destruction of surrounding soft tissues and bones. He underwent evacuation of the pseudotumour, acetabular reconstruction using the Harrington procedure, and total hip arthroplasty. ...
journal_title:Journal of orthopaedic surgery (Hong Kong)
pub_type: 杂志文章
doi:10.1177/230949901402200232
更新日期:2014-08-01 00:00:00
abstract:BACKGROUND:First metatarsophalangeal joint (MTPJ) arthrodesis is a common treatment modality for hallux rigidus with successful outcomes. However, the effect of arthrodesis on flexor digitorum longus (FDL) is poorly understood. The purpose of this study was to investigate this effect in a biomechanical model. METHODS:...
journal_title:Journal of orthopaedic surgery (Hong Kong)
pub_type: 杂志文章
doi:10.1177/2309499019826325
更新日期:2019-01-01 00:00:00
abstract:PURPOSE:To assess the effectiveness of sympathetic skin response in evaluating peripheral sympathetic nerve activity of patients with spinal cord injury, and to report on the basic properties of sympathetic skin response. METHODS:Sympathetic skin response evoked by electrical stimulation was recorded from the palms an...
journal_title:Journal of orthopaedic surgery (Hong Kong)
pub_type: 杂志文章
doi:10.1177/230949900401200108
更新日期:2004-06-01 00:00:00
abstract:PURPOSE:To compare outcomes of anterior spinal fusion (ASF) versus laminoplasty for cervical spondylotic myelopathy (CSM). METHODS:Records of 26 women and 37 men aged 34 to 83 (mean, 67) years who underwent ASF or laminoplasty for CSM were reviewed. Patient demographics, duration of symptoms, pre- and post-operative J...
journal_title:Journal of orthopaedic surgery (Hong Kong)
pub_type: 杂志文章
doi:10.1177/230949900901700303
更新日期:2009-12-01 00:00:00
abstract::Acetabular wedge augmentation is a useful technique and is recommended in situations where cup revision is likely to be excessively difficult. Numerous augmentation designs that improve the stability of the hip are now available in the market. Occasionally, however, these devices are not readily available, particularl...
journal_title:Journal of orthopaedic surgery (Hong Kong)
pub_type: 杂志文章
doi:10.1177/230949900501300221
更新日期:2005-08-01 00:00:00
abstract:PURPOSE:To report outcomes in 6 patients with the terrible triad of the elbow treated with our modified protocol. METHODS:6 men aged 26 to 54 years underwent surgery for the terrible triad of the elbow by a single surgeon. All the patients had a displaced comminuted fracture of the radius, posterior dislocation of the...
journal_title:Journal of orthopaedic surgery (Hong Kong)
pub_type: 杂志文章
doi:10.1177/230949900901700108
更新日期:2009-04-01 00:00:00
abstract:PURPOSE:To compare quality of life, knee function, and physical activity in 33 elderly women with or without early-stage knee osteoarthritis (OA). METHODS:33 Japanese elderly women (mean age, 66 years) with (n=18) or without (n=15) early-stage knee OA symptoms (knee pain and decreased range of motion [ROM]) were recru...
journal_title:Journal of orthopaedic surgery (Hong Kong)
pub_type: 杂志文章
doi:10.1177/230949901001800107
更新日期:2010-04-01 00:00:00
abstract:PURPOSE:To examine possible causes of publication bias in the orthopaedic literature so as to avoid inappropriate clinical decisions based on reviews of the literature. METHODS:Two reviewers independently reviewed abstracts presented to the 1999 American Academy of Orthopaedic Surgeons annual meeting. Data pertaining ...
journal_title:Journal of orthopaedic surgery (Hong Kong)
pub_type: 杂志文章
doi:10.1177/230949900701500114
更新日期:2007-04-01 00:00:00
abstract:BACKGROUND:Juvenile hallux valgus (JHV) frequently results in an impaired quality of life because of pain and deformity. We used a validated clinical score to investigate the efficacy of lateral hemiepiphysiodesis of the first metatarsal base as a treatment for JHV. METHODS:We conducted a prospective, nonrandomized, s...
journal_title:Journal of orthopaedic surgery (Hong Kong)
pub_type: 临床试验,杂志文章
doi:10.1177/2309499018801135
更新日期:2018-05-01 00:00:00
abstract:PURPOSE:To evaluate the correlation between survival and tumour characteristics in 23 patients with chondrosarcoma. METHODS:Records of 15 men and 8 women aged 14 to 66 (mean, 37) years who were diagnosed with primary (n=19) or secondary (n=4) chondrosarcoma of the axial skeleton (n=8), proximal extremity (n=9), or dis...
journal_title:Journal of orthopaedic surgery (Hong Kong)
pub_type: 杂志文章
doi:10.1177/230949901502300323
更新日期:2015-12-01 00:00:00
abstract:PURPOSE:To compare mid-term outcomes of hemi-resurfacing arthroplasty (HRA) and total resurfacing arthroplasty (TRA). METHODS:Seven men and 5 women (16 hips) aged 33 to 72 (mean, 50) years underwent HRA, whereas 7 men and 3 women (16 hips) aged 23 to 52 (mean, 40) years underwent metal-on-metal TRA; all were for osteo...
journal_title:Journal of orthopaedic surgery (Hong Kong)
pub_type: 杂志文章
doi:10.1177/230949901101900209
更新日期:2011-08-01 00:00:00
abstract::We present 4 cases of facet cyst haematoma in the ligamentum flavum of the lumbar spine. All patients presented with a one-to-3-month history of back pain or numbness in the legs, and sudden neurological deterioration. One also developed cauda equina syndrome and another developed radiculopathy. In all cases, magnetic...
journal_title:Journal of orthopaedic surgery (Hong Kong)
pub_type: 杂志文章
doi:10.1177/230949900901700118
更新日期:2009-04-01 00:00:00
abstract:PURPOSE:To report the trends in the incidence of typical and atypical femoral fractures (AFF) in patients aged >50 years from 2009 to 2014 and in the prescription of bisphosphonates for osteoporosis from 2001 to 2013 in Australia. METHODS:175 patients aged >50 years presenting to our hospital with an AO type 32 femora...
journal_title:Journal of orthopaedic surgery (Hong Kong)
pub_type: 杂志文章
doi:10.1177/230949901602400110
更新日期:2016-04-01 00:00:00
abstract::A subcapital femoral neck fracture complicating a healed trochanteric fracture is rare. Such cases are managed in a rather heterogeneous manner, i.e. there exists a mixture of cases treated by either fixed angle devices or dynamic compression screws. We describe 5 patients who developed subcapital femoral neck fractur...
journal_title:Journal of orthopaedic surgery (Hong Kong)
pub_type: 杂志文章
doi:10.1177/230949900701500224
更新日期:2007-08-01 00:00:00
abstract:PURPOSE:To review treatment results of 29 patients with haemodynamically unstable pelvic fractures after implementation of a standardised multidisciplinary protocol. METHODS:Records of 14 men and 15 women aged 14 to 84 (mean, 46) years who were treated for haemodynamically unstable closed (n=27) or open (n=2) pelvic f...
journal_title:Journal of orthopaedic surgery (Hong Kong)
pub_type: 杂志文章
doi:10.1177/230949901402200212
更新日期:2014-08-01 00:00:00
abstract:PURPOSE:To assess the compression and flexural strength of bone cement mixed with 0 ml, 1 ml, or 2 ml of blood. METHODS:High viscosity polymethyl methacrylate (PMMA) loaded with or without gentamicin was used. Blood was collected from total knee arthroplasty patients. In the same operating room, one pack of cement eac...
journal_title:Journal of orthopaedic surgery (Hong Kong)
pub_type: 杂志文章
doi:10.1177/1602400223
更新日期:2016-08-01 00:00:00
abstract:PURPOSE:The purpose of this study was to evaluate the implication of gait speed, which is a prerequisite for the diagnosis of sarcopenia in older patients with lumbar spinal stenosis (LSS). METHODS:This study was conducted in a total of 235 patients with LSS who underwent surgical treatment. The state of sarcopenia an...
journal_title:Journal of orthopaedic surgery (Hong Kong)
pub_type: 杂志文章
doi:10.1177/2309499020918422
更新日期:2020-01-01 00:00:00