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 each was mixed with 0 ml (control), 1 ml, or 2 ml of blood for 1 minute during the dough phase. The dough was extruded into cylindrical and rectangular moulds for 20 minutes of setting, and then cured in phosphate buffered saline at 37±1ºC for 7 days. The samples were visually inspected for fractures and areas of weakness, and then scanned using microcomputed tomography. 48 gentamicin-loaded and 59 non-gentamicin-loaded samples mixed with 0 ml (control), 1 ml, or 2 ml of blood were randomised for flexural and compression strength testing; each group had at least 6 samples. RESULTS:In samples loaded with or without gentamicin, the flexural and compressive strength was highest in controls, followed by samples mixed with 1 ml or 2 ml of blood. In samples mixed with 2 ml of blood, the flexural strength fell below the standard of 50 MPa. In samples mixed with 2 ml of blood and all gentamicin-loaded samples, the compressive strength fell below the standard of 70 MPa. Microcomputed tomography revealed areas of voids and pores indicating the presence of laminations and partitions within. CONCLUSION:The biomechanical strength of PMMA contaminated with blood may decrease. Precautions such as saline lavage, pack drying the bone, change of gloves, and prompt insertion of the implant should be taken to prevent blood from contaminating bone cement.
journal_name
J Orthop Surg (Hong Kong)journal_title
Journal of orthopaedic surgery (Hong Kong)authors
Tan JH,Koh BT,Ramruttun AK,Wang Wdoi
10.1177/1602400223subject
Has Abstractpub_date
2016-08-01 00:00:00pages
240-4issue
2eissn
1022-5536issn
2309-4990journal_volume
24pub_type
杂志文章abstract::The incidence of anterior cruciate ligament reconstruction (ACLR) is continuously increasing. As a result so has the need for revision ACLR, which unfortunately has worse functional outcomes and rate of return to sport. Revision ACLR can be performed as a single stage or in two stages. The latter is recommended in the...
journal_title:Journal of orthopaedic surgery (Hong Kong)
pub_type: 杂志文章
doi:10.1177/2309499019857736
更新日期:2019-05-01 00:00:00
abstract:INTRODUCTION:The aim of this study was to analyze the survival of the Echelon® femoral stems in revision hip surgeries in patients with Paprosky I-IIIA femoral defects. PATIENTS AND METHODS:Sixty-six patients (70 hips) who underwent revision hip surgery with at least 3 years of follow-up data were included in the stud...
journal_title:Journal of orthopaedic surgery (Hong Kong)
pub_type: 杂志文章
doi:10.1177/2309499018783906
更新日期:2018-05-01 00:00:00
abstract:PURPOSE:The purpose of this article is to explore the real-life practice of clinical management of humeral shaft fracture associated with traumatic radial nerve palsy among orthopedic trauma surgeons. METHODS:Two hundred seventy-nine orthopedic surgeons worldwide reviewed 10 real cases of a humeral shaft fracture asso...
journal_title:Journal of orthopaedic surgery (Hong Kong)
pub_type: 杂志文章,多中心研究
doi:10.1177/2309499017727914
更新日期:2017-09-01 00:00:00
abstract:PURPOSE:To evaluate the relationship between posterolateral reconstruction, abductor muscle strength, and femoral offset following total hip arthroplasty. METHODS:Of 28 patients (56 limbs) we assessed, 12 underwent posterolateral reconstruction (reconstruction group) and 16 did not (non-reconstruction group). Isometri...
journal_title:Journal of orthopaedic surgery (Hong Kong)
pub_type: 杂志文章
doi:10.1177/230949900401200205
更新日期:2004-12-01 00:00:00
abstract::Rhinosporidiosis is a chronic granulomatous fungal disease caused by Rhinosporidiosis seeberi. It usually affects the mucocutaneous tissue of the nose; bone involvement is rare. We report the clinical features, diagnosis, and management of rhinosporidiosis involving the face, forehead, and right foot. As antimicrobial...
journal_title:Journal of orthopaedic surgery (Hong Kong)
pub_type: 杂志文章
doi:10.1177/230949900801600123
更新日期:2008-04-01 00:00:00
abstract::Intramedullary devices have been developed to reduce the problems associated with Kirschner (K)-wire fixation in proximal interphalangeal joint (PIPJ) arthrodesis. The purpose of this systematic review is to compare the surgical outcomes of K-wires versus novel internal fixation devices in PIPJ arthrodesis in claw/ham...
journal_title:Journal of orthopaedic surgery (Hong Kong)
pub_type: 杂志文章
doi:10.1177/2309499020911168
更新日期:2020-01-01 00:00:00
abstract:PURPOSE:To assess the effectiveness of a turnbuckle orthosis as a means of improving the range of motion in patients with elbow stiffness. METHODS:17 males and 11 females aged 8 to 68 (mean, 32) years underwent static progressive stretching using a turnbuckle orthosis for elbow stiffness secondary to trauma or surgery...
journal_title:Journal of orthopaedic surgery (Hong Kong)
pub_type: 杂志文章
doi:10.1177/230949901001800117
更新日期:2010-04-01 00:00:00
abstract:PURPOSE:To evaluate the role of sympathetic skin response (SSR) and three-phase bone scintigraphy (TPBS) in the diagnosis of complex regional pain syndrome (CRPS). METHODS:60 patients with CRPS of the hand were recruited. TPBS was performed using a bolus injection of 20 mCi of Tc-99m methylene diphosphonate in an ante...
journal_title:Journal of orthopaedic surgery (Hong Kong)
pub_type: 杂志文章
doi:10.1177/230949900601400310
更新日期:2006-12-01 00:00:00
abstract:PURPOSE:To examine the effectiveness of a multidisciplinary rehabilitation programme for patients with chronic low back pain in Hong Kong, and to identify factors associated with work resumption. METHODS:57 men and 8 women aged 20 to 56 (mean, 39) years who had a more than 3-month history of low back pain and were unr...
journal_title:Journal of orthopaedic surgery (Hong Kong)
pub_type: 杂志文章
doi:10.1177/230949901001800201
更新日期:2010-08-01 00:00:00
abstract::Cervical endoscopic spinal surgery (CESS) is now regularly performed in some centres in the Far East, yet rarely in Europe and the United States. This review describes the application of CESS through anterior and posterior approaches with analysis of the available evidence supporting current techniques. An electronic ...
journal_title:Journal of orthopaedic surgery (Hong Kong)
pub_type: 杂志文章,评审
doi:10.1177/2309499018758520
更新日期:2018-01-01 00:00:00
abstract:BACKGROUND:Our hypothesis is to utilize a simple suture-guiding device for minimally invasive repair of Achilles tendon without any extra cost with a minimal risk of rerupture. The purpose of this study is to investigate the results of our minimally invasive technique for Achilles tendon repair using a simple ovarian c...
journal_title:Journal of orthopaedic surgery (Hong Kong)
pub_type: 杂志文章
doi:10.1177/2309499017739484
更新日期:2017-09-01 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 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:PURPOSE:To assess the criterion validity, repeatability, and the missing value protocol of the reduced Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) function scale ('reduced scale'). METHODS:Three separate studies were performed: a cross-over study to compare the full- and reduced-scale scores...
journal_title:Journal of orthopaedic surgery (Hong Kong)
pub_type: 杂志文章
doi:10.1177/230949900801600113
更新日期:2008-04-01 00:00:00
abstract:PURPOSE:To assess the clinical results of pelvic reconstruction using a saddle prosthesis following limb salvage operation for periacetabular tumour. METHODS:12 patients with sarcoma and 4 with metastasis involving the pelvis were treated using the saddle prosthesis between 1995 and 2003 inclusive. Wide pelvic resecti...
journal_title:Journal of orthopaedic surgery (Hong Kong)
pub_type: 杂志文章
doi:10.1177/230949900601400210
更新日期:2006-08-01 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: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::Isolated pisiform dislocation is rare. We present one such case in a 20-year-old man occurring after a direct injury to the wrist. After an initial delay in diagnosis and unsuccessful closed reduction, he underwent resection of the pisiform. At 12-month follow-up, he had full range of movement of the wrist and no resi...
journal_title:Journal of orthopaedic surgery (Hong Kong)
pub_type: 杂志文章
doi:10.1177/230949901001800329
更新日期:2010-12-01 00:00:00
abstract::Neck manipulation is associated with spinal cord injury. However, occurrence of such cases is infrequent. This article presents a 33-year-old gentleman who sustained acute tetraplegia after neck manipulation. The aim of this case report is to create awareness that vigorous neck manipulation could cause injury to the s...
journal_title:Journal of orthopaedic surgery (Hong Kong)
pub_type: 杂志文章
doi:10.1177/2309499017690459
更新日期:2017-01-01 00:00:00
abstract:PURPOSE:To examine the long-term effects of hip arthrodesis in terms of gait adaptations. METHODS:Motion analysis was performed on 9 patients who underwent unilateral hip arthrodesis between 1979 and 1991. A standard clinical gait analysis 3-dimensional model for the lower limb was used to calculate the effect of the ...
journal_title:Journal of orthopaedic surgery (Hong Kong)
pub_type: 杂志文章
doi:10.1177/230949900301100209
更新日期:2003-12-01 00:00:00
abstract:PURPOSE:To evaluate our hospital protocol of low-dose vitamin K titration for preoperative warfarin reversal for early hip fracture surgery. METHODS:Records of 16 men and 33 women aged 63 to 93 (mean, 81) years who were taking warfarin for atrial fibrillation (n=40), venous thromboembolism (n=9), cerebrovascular accid...
journal_title:Journal of orthopaedic surgery (Hong Kong)
pub_type: 杂志文章
doi:10.1177/230949901502300108
更新日期:2015-04-01 00:00:00
abstract:PURPOSE:Osteochondral impaction grafting to manage isolated chondral defects in femoral condyles usually uses a metal punch to impact the grafts into predrilled cavities. Damage to the chondrocytes during impaction is a concern, however, and new methods are being sought to minimise the damage. We studied if impaction w...
journal_title:Journal of orthopaedic surgery (Hong Kong)
pub_type: 杂志文章
doi:10.1177/230949900201000211
更新日期:2002-12-01 00:00:00
abstract::Restricted hip movement along with femoroacetabular impingement (FAI) has been reported to be an important risk factor in anterior cruciate ligament (ACL) injury. We performed a literature review assessing the evidence that FAI, or restricted hip movement, contributes to the likelihood of sustaining an ACL injury to p...
journal_title:Journal of orthopaedic surgery (Hong Kong)
pub_type: 杂志文章,评审
doi:10.1177/2309499018799520
更新日期:2018-05-01 00:00:00
abstract:BACKGROUND:Recently, several in vitro biomechanical studies that used dual small locking plate fixation for humeral shaft fractures have investigated. However, in vivo studies about dual plate fixation for humeral shaft fractures are limited. The purpose of our study was to report the outcomes of dual small plating for...
journal_title:Journal of orthopaedic surgery (Hong Kong)
pub_type: 杂志文章
doi:10.1177/2309499019839608
更新日期:2019-05-01 00:00:00
abstract::We describe a modified surgical technique developed to enhance the classical irrigation and debridement procedure to improve the possibilities of retaining an infected total knee arthroplasty. This technique, debridement antibiotic pearls and retention of the implant (DAPRI), aims to remove the intra-articular biofilm...
journal_title:Journal of orthopaedic surgery (Hong Kong)
pub_type: 杂志文章
doi:10.1177/2309499019874413
更新日期:2019-09-01 00:00:00
abstract:PURPOSE:Hoffa fractures are uncommon intra-articular fractures of femoral condyle in coronal plane. The purpose of our study is to assess radiologic and functional outcome in operatively treated Hoffa fractures. METHODS:We retrospectively reviewed 32 patients of isolated Hoffa fracture from January 2010 to March 2015....
journal_title:Journal of orthopaedic surgery (Hong Kong)
pub_type: 杂志文章
doi:10.1177/2309499017718928
更新日期:2017-05-01 00:00:00
abstract:PURPOSE:To determine risk factors of venous thromboembolism (VTE) in Indian patients undergoing surgery for pelvic-acetabular fractures. METHODS:48 men and 8 women aged 17 to 61 (mean, 36) years who underwent open reduction and internal fixation for pelvic-acetabular fractures were evaluated for VTE in the postoperati...
journal_title:Journal of orthopaedic surgery (Hong Kong)
pub_type: 杂志文章
doi:10.1177/230949901101900105
更新日期:2011-04-01 00:00:00
abstract:INTRODUCTION:The purpose of this retrospective study was to investigate the possible short-term benefit of a single intra-articular corticosteroid injection in those patients treated with physiotherapy when compared to a group of patients undergoing physiotherapy only (PT only). METHODS:A retrospective chart review wa...
journal_title:Journal of orthopaedic surgery (Hong Kong)
pub_type: 杂志文章
doi:10.1177/2309499017690463
更新日期:2017-01-01 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: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