Displaying publications 1 - 20 of 141 in total

Abstract:
Sort:
  1. Zairul-Nizam ZF, Badaruddin BS
    J Orthop Surg (Hong Kong), 2006 Aug;14(2):216-8.
    PMID: 16914793
    Infection following total knee arthroplasty can be devastating. Even with established treatment protocols, eradication of the infection may not be feasible. We report 2 patients who required above-knee amputation to eradicate recalcitrant infection.
    Matched MeSH terms: Arthroplasty, Replacement, Knee*
  2. Zainul-Abidin S, Lim B, Bin-Abd-Razak HR, Gatot C, Allen JC, Koh J, et al.
    Malays Orthop J, 2019 Jul;13(2):28-34.
    PMID: 31467648 DOI: 10.5704/MOJ.1907.005
    Introduction: Periprosthetic fractures are a devastating complication following total knee arthroplasty. Little is known about the effect of mechanical factors on the incidence of periprosthetic fractures. The aim of this study was to examine the correlation between pre-operative mechanical factors, like side of surgery, coronal alignment and pre-operative range of motion and intra-operative factors, and the incidence of a periprosthetic fracture, following primary total knee arthroplasty (TKA). Materials and Methods: Forty-two patients with periprosthetic fractures (PPF) after primary TKA were identified from our hospital arthroplasty registry. These patients were matched two-to-one for gender and age at primary knee arthroplasty to 84 patients without PPF. The incidence of periprosthetic fracture with regards to laterality, coronal alignment and pre-operative range of motion was analysed. Intra-operative factors like implant type, patellar resurfacing and notching were also analysed using logistic regression. Results: Coronal alignment, pre-operative range of motion and patella resurfacing were not significant predictors of periprosthetic fractures. Anterior femoral notching was found to be significantly higher in the fracture group with an odds ratio of 17. Left sided surgery was also significantly higher in the periprosthetic fracture group. Conclusion: Periprosthetic fractures are 17 times more likely to occur in a knee with anterior femoral notching. Preoperative factors like coronal alignment and poor preoperative range of motion do not seem to increase the risk of periprosthetic fractures after TKA.
    Matched MeSH terms: Arthroplasty, Replacement, Knee
  3. Yong KS, Kareem BA, Ruslan GN, Harwant S
    Med J Malaysia, 2001 Jun;56 Suppl C:57-60.
    PMID: 11814251 MyJurnal
    Sixty-seven primary THR surgeries in 57 patients between January 1992 and December 1998 were reviewed after a mean follow-up of 35.9 months. The rate of superficial and deep wound infections were 11.9% and 1.5% respectively. The most common organism in superficial wound infection was Staphylococcus aureus. The factors that were significantly associated with superficial wound infection were diabetes mellitus (p= 0.0230) obesity (p=0.0088). The patients who developed superficial wound infection have a significantly longer duration of surgery compared to patients without infection (p=0.014). However, there was no significant difference between the mean age among patients with and without superficial wound infection (p=0.814).
    Matched MeSH terms: Arthroplasty, Replacement, Hip/adverse effects*; Arthroplasty, Replacement, Hip/statistics & numerical data*
  4. Yong CK, Choon DS, Soon HC
    J Orthop Surg (Hong Kong), 2008 Aug;16(2):197-200.
    PMID: 18725672
    To present midterm results of Duracon total knee arthroplasty (TKA) performed between 1991 and 2001.
    Matched MeSH terms: Arthroplasty, Replacement, Knee/methods*
  5. Yoga, R., Sivapathasundaram, N., Suresh, C.
    Malays Orthop J, 2009;3(1):72-77.
    MyJurnal
    We evaluated the efficacy of a cement gun to improve the depth of cement penetration in total knee arthroplasty. Ninety-one consecutive patients from two hospitals were recruited for this study. For Group I cement was applied to the tibial baseplate and the proximal tibia with fingers. Group 2 had similar application of cement to the tibial baseplate but cement was pressurized into the proximal tibia using a cement gun.. The knee was kept extended until the cement hardened. Standard post-operative x-rays were reviewed to assess cement penetration into the proximal tibia. The mean cement penetration was 2.1 mm in Group 1 and 3.1 mm in Group 2 and the difference was statistically significant. The use of the cement gun improves cement penetration into the proximal tibia and facilitates early stability of the implant fixation to the bone.
    Matched MeSH terms: Arthroplasty, Replacement, Knee
  6. Yoga, R., Sivapathasundaram, N., Suresh, C.
    Malays Orthop J, 2009;3(1):78-80.
    MyJurnal
    The posterior slope of the tibial plateau is an important feature to preserve during knee replacement. The correct slope aids in the amount of flexion and determines if the knee will be loose on flexion. This is a study on the posterior tibial plateau slope based on preoperative and postoperative radiographs of 100 consecutive patients who had total knee replacements. The average posterior slope of the tibia plateau was 10.1 degrees. There is a tendency for patients with higher pre-operative posterior tibial plateau slope to have higher post-operative posterior tibial plate slope.
    Matched MeSH terms: Arthroplasty, Replacement, Knee
  7. Yeo QY, Lye DC, Sathappan SS
    Med J Malaysia, 2015 Feb;70(1):54-6.
    PMID: 26032534
    Intra-articular therapies, such as steroid injection, viscosupplement injection and acupuncture, are common non-surgical options for patients with osteoarthritis of the knee. With any intra-articular injection or acupuncture procedure, there is a potential for inoculation with bacteria leading to possible knee infection. The authors report a patient who incurred an acute infection found after a total knee arthroplasty attributed to prior acupuncture procedure done as part of conservative treatment.
    Matched MeSH terms: Arthroplasty, Replacement
  8. Yeap SS, Nur Fazirah MFR, Nur Aisyah C, Zahari Sham SY, Samsudin IN, C Thambiah S, et al.
    Osteoporos Sarcopenia, 2017 Jun;3(2):112-116.
    PMID: 30775514 DOI: 10.1016/j.afos.2017.05.001
    Objective: Following an osteoporotic fracture, pharmacological treatment is recommended to increase bone mineral density and prevent future fractures. However, the rate of starting treatment after an osteoporotic hip fracture remains low. The objective of this study was to survey the treatment rate following a low-trauma hip fracture at a tertiary private hospital in Malaysia over a period of 5 years.

    Methods: The computerised hospital discharge records were searched using the terms "hip," "femur," "femoral," "trochanteric," "fracture," or "total hip replacement" for all patients over the age of 50, admitted between 2010 and 2014. The medical charts were obtained and manually searched for demographic data and treatment information. Hip operations done for non-low-trauma-related fracture and arthritis were excluded.

    Results: Three hundred seventy patients over the age of 50 years were admitted with a hip fracture, of which 258 (69.7%) were low trauma, presumed osteoporotic, hip fractures. The median age was 79.0 years (interquartile range [IQR], 12.0). Following a hip fracture, 36.8% (95 of 258) of the patients received treatment, but out of these, 24.2% (23 of 95) were on calcium/vitamin D only. The median duration of treatment was 1 month (IQR, 2.5). In 2010, 56.7% of the patients received treatment, significantly more than subsequent years 2011-2014, where approximately only 30% received treatment.

    Conclusions: Following a low-trauma hip fracture, approximately 72% of patients were not started on active antiosteoporosis therapy. Of those who were, the median duration of treatment was 1 month. This represents a missed opportunity for the prevention of future fractures.
    Matched MeSH terms: Arthroplasty, Replacement, Hip
  9. Yeap SS, Abu Amin SR, Baharuddin H, Koh KC, Lee JK, Lee VKM, et al.
    BMC Musculoskelet Disord, 2021 Jun 04;22(1):514.
    PMID: 34088302 DOI: 10.1186/s12891-021-04381-8
    BACKGROUND: The 2013 Malaysian Clinical Practice Guidelines on the Management of Osteoarthritis (OA) recommend a linear step-up approach to manage knee OA. However, patients with knee OA often require a multimodal approach to address OA-related pain symptoms and functional limitations. This consensus aimed to provide doctors with an updated set of evidence-based, clinical experience-guided recommendations to manage knee OA.

    METHODS: A multi-speciality expert panel consisting of nine Malaysian physicians from different healthcare settings who manage a diverse OA patient population was convened. Using a combination of the ADAPTE process and modified Delphi method, the panel reviewed current evidence on the management of knee OA and synthesised a set of nine recommendations on the management of knee OA, supported by an algorithm that summarises the consensus' core messages.

    RESULTS: A multimodal intervention strategy is the mainstay of OA management and the choice of any single or multimodal intervention may vary over the course of the disease. Overall, a non-pharmacological core treatment set of patient education, weight loss and exercise is recommended for all patients. When pharmacotherapy is indicated, symptomatic slow-acting drugs for osteoarthritis are recommended at the early stage of disease, and they can be paired with physical therapy as background treatment. Concurrent advanced pharmacotherapy that includes non-steroidal anti-inflammatory drugs, intraarticular injections and short-term weak opioids can be considered if patients do not respond sufficiently to background treatment. Patients with severe symptomatic knee OA should be considered for knee replacement surgery. Management should begin with specific treatments with the least systemic exposure or toxicity, and the choice of treatment should be determined as a shared decision between patients and their team of healthcare providers.

    CONCLUSIONS: This consensus presents nine recommendations that advocate an algorithmic approach in the management of patients living with knee OA. They are applicable to patients receiving treatment from primary to tertiary care providers in Malaysia as well as other countries.

    Matched MeSH terms: Arthroplasty, Replacement, Knee*
  10. Yeap JS, Yeap JK, Ruslan NG
    Med J Malaysia, 1999 Dec;54(4):539.
    PMID: 11072481
    Matched MeSH terms: Arthroplasty, Replacement, Hip
  11. Yazid DM, Lim CY, Chopra S
    Malays Orthop J, 2010;4(3):7-10.
    MyJurnal
    This study was undertaken to investigate the outcome of traumatic intracapsular neck of femur fractures treated with total hip arthroplasty (THA). Patients aged >=60 years who underwent THA for traumatic intracapsular neck of femur fractures from January 2005 to March 2009 were included in the study. Telephone or personal interviews were conducted. There were 49 patients identified within the study period. The mean age was 74.12 years. Most patients were females 81.6%), with a male: female ratio of 1: 4.4. In total, 29 patients were available for outcome scoring. The one-month mortality rate was 4.1%, and the one-year mortality rate was 20.5%. Of the 29 patients 82.8% obtained a Zukerman Functional Outcome Score of good (80 – 100) and 13.8% obtained a score of fair (60 – 80). THA for the treatment of traumatic neck of femur fractures in elderly is a good option with 96.6% of patients obtaining a satisfactory functional outcome, with acceptable morbidity and mortality statistics.
    Matched MeSH terms: Arthroplasty, Replacement, Hip
  12. Wui NB, Ahmad Anuar MA, Abdul Wahid AM
    Malays J Med Sci, 2020 Jul;27(4):64-71.
    PMID: 32863746 MyJurnal DOI: 10.21315/mjms2020.27.4.6
    Background: The management of fractures around the knee in the elderly population can be challenging due to the complexity of the patients and the fracture characteristics. In this study, we aimed to investigate the short-term outcome of elderly patients who had fractures around the knee and who were treated with primary total knee arthroplasty. The study included patients who were at least 70 years old with poor bone quality and who presented with a fracture around the knee that would be difficult to treat with open reduction and internal fixation (ORIF) as well as patients who were at least 55 years old presenting with severe concomitant knee osteoarthritis.

    Methods: This is a cross-sectional study in which all the elderly patients who underwent early primary total knee replacement due to trauma around the knee at the Segamat Hospital between January 2015 and June 2019 were identified. Data were collected from clinical and operative notes. The clinical outcomes of these patients were evaluated by the range of motion of the knee and the Knee Society Score (KSS).

    Results: Ten patients were identified to have undergone this procedure. Six patients sustained supracondylar femur fractures, two patients had tibial plateau fractures and two patients had concurrent supracondylar femur and tibial plateau fractures. The mean follow-up duration was 22.3 ± 13.9 months, the mean knee score was 87.7 ± 10.0 and the mean functional knee score was 56 ± 41.9.

    Conclusion: In this cohort, good short-term outcomes close to pre-fracture condition was noted in patients who did not suffer from any complications during the post-operative period. Two patients who had surgical site infection had lower functional knee scores. Another two patients with lower knee scores experienced surgical site infection of the distal tibia and contralateral fixed flexion deformity of the knee. Early primary total knee replacement remains a viable option in treating fractures around the knee in the elderly. Infection, which in this study affected 20% of the patients, is the main deterring factor in performing this procedure.

    Matched MeSH terms: Arthroplasty, Replacement, Knee
  13. Wei R, Lim CY, Yang Y, Tang XD, Yan TQ, Yang RL, et al.
    Orthop Surg, 2021 Apr;13(2):553-562.
    PMID: 33665985 DOI: 10.1111/os.12918
    OBJECTIVES: This study aims to: (i) evaluate the outcome of patients with Harrington class III lesions who were treated according to Harrington classification; (ii) propose a modified surgical classification for Harrington class III lesions; and (iii) assess the efficiency of the proposed modified classification.

    METHODS: This study composes two phases. During phase 1 (2006 to 2011), the clinical data of 16 patients with Harrington class III lesions who were treated by intralesional excision followed by reconstruction of antegrade/retrograde Steinmann pins/screws with cemented total hip arthroplasty (Harrington/modified Harrington procedure) were retrospectively reviewed and further analyzed synthetically to design a modified surgical classification system. In phase 2 (2013 to 2019), 62 patients with Harrington class III lesions were classified and surgically treated according to our modified classification. Functional outcome was assessed using the Musculoskeletal Tumor Society (MSTS) 93 scoring system. The outcome of local control was described using 2-year recurrence-free survival (RFS). Owing to the limited sample size, we considered P 

    Matched MeSH terms: Arthroplasty, Replacement, Hip
  14. Wazir,N.N., Ravindran, T., Mukundala, V.V., Choon, S.K.
    Malays Orthop J, 2007;1(2):21-23.
    MyJurnal
    In 1977, a female patient, aged 31y, presented with histiocytosis X in the right pelvis and was treated with radiotherapy. She presented again in 1999 at the age of 53y with a similar problem at the same location this time also involving the acetabulum. The affected right hip was treated with cemented total hip replacement. Two years postoperatively, the patient was pain free with no evidence of local recurrence or loosening of implant, thus demonstrating that total hip replacement is a viable treatment option for histiocytosis involving the hip.
    Matched MeSH terms: Arthroplasty, Replacement, Hip
  15. Wazir NN, Mukundala VV, Choon DS
    J Orthop Surg (Hong Kong), 2006 Apr;14(1):43-6.
    PMID: 16598086 DOI: 10.1177/230949900601400110
    PURPOSE: To evaluate the short-term clinical and functional outcomes of total hip arthroplasty performed for physiologically active elderly patients with Garden type-3 or -4 femoral neck fracture.
    METHODS: Records of 47 consecutive patients (40 female, 7 male) with type-3 or -4 femoral neck fracture (Garden classification) who underwent cemented total hip arthroplasty at our hospital during January 1999 to December 2002 were reviewed. Radiological and clinical (Harris functional hip score and Oxford hip score) assessments of 38 patients were measured with a mean follow-up period of 21 months (range, 4-48 months).
    RESULTS: The mean age of the 47 patients was 75 years (range, 62-89 years). Records of 9 patients were excluded because of death, lost to follow-up, and development of deep infection that necessitated implant removal and excision arthroplasty. The mean Harris hip score of the 38 patients was 83 (range, 59-97), whereas the mean Oxford hip score was 25.2 (range, 14-33). Pain in the hips was absent in 30 patients, 6 had slight pain occasionally, and 2 patients had mild-to-moderate hip discomfort. No signs of aseptic loosening or change in implant position were noted on radiographic assessment. Two cases of dislocation were reduced by closed reduction. Two patients had deep wound infection and were treated with debridement, implant removal, and conversion to girdle stone.
    CONCLUSION: This short-term study showed that total hip arthroplasty for femoral neck fracture had good postoperative results in functional hip and pain scores. More attention should be paid to coexisting medical illness (e.g. diabetes mellitus, hypertension, and ischaemic heart disease) and prevention of infection.
    Matched MeSH terms: Arthroplasty, Replacement, Hip*
  16. Wazir NN, Shan Y, Mukundala VV, Gunalan R
    Singapore Med J, 2007 May;48(5):e138-40.
    PMID: 17453086
    Two cases of dislocation of total knee arthroplasty presented to us within the same week. The first patient is a 71-year-old woman who underwent bilateral primary total knee arthroplasty. The left knee dislocated three weeks after the surgery. Due to failure of conservative measures, she underwent revision total knee arthroplasty. The other patient is a 72-year-old woman presenting ten years after primary total knee arthroplasty, with a traumatic dislocation of the knee joint. She was treated as an outpatient with closed manipulative reduction.
    Matched MeSH terms: Arthroplasty, Replacement, Knee*
  17. Wam, B.L., Chee, E.K., Ewe, T.W.
    Malays Orthop J, 2010;4(3):11-15.
    MyJurnal
    The PROSTALAC (PROSThesis Antibiotic Loaded Acrylic Cement) functional spacer is made with antibiotic-loaded acrylic cement. We use it as an interim spacer in two-stage exchange arthroplasty in cases of infected total knee or total hip replacement. PROSTALAC allows continuous rehabilitation between stages as it maintains good alignment and stability of the joint with a reasonable range of movement. It also helps to maintain the soft-tissue planes, thereby facilitating the second-stage procedure. We report here early outcomes of the use of PROSTALAC in 5 patients - 3 in total knee replacements, 1 in a total hip replacement and 1 in a bipolar hemiarthroplasty.
    Matched MeSH terms: Arthroplasty, Replacement, Hip; Arthroplasty, Replacement, Knee
  18. Wahab AHA, Saad APM, Syahrom A, Kadir MRA
    Comput Methods Biomech Biomed Engin, 2020 Apr;23(5):182-190.
    PMID: 31910663 DOI: 10.1080/10255842.2019.1709828
    Glenoid perforation is not the intended consequence of the surgery and must be avoided. The analysis on biomechanical aspect of glenoid vault perforation remains unknown. The purpose of this study is to determine the impact of glenoid perforation towards stress distribution and micromotion at the interfaces. Eight glenoid implant models had been constructed with various size, number and type of fixation. A load of 750 N was applied to centre, superior-anterior and superior-posterior area. Implant perforation had minimal impact on stress distribution and micromotion at the interfaces. However, cement survival rate for implant without perforation was the highest with a difference of up to 37% compared to other perforated models. Besides that, implant fixation and high stresses at the implant had more of an impact on implant instability than implant perforation. As a conclusion, glenoid perforation did not influence the stress distribution and micromotion, but, it reduced cement survival rate and increase the stress critical volume.
    Matched MeSH terms: Arthroplasty, Replacement, Shoulder*
  19. Ude Chinedu Cletus, Azizi Miskon, Ruszymah Idrus
    Sains Malaysiana, 2018;47(11):2757-2767.
    Despite remarkable mechanical durability and strength, hyaline cartilage has very limited capacity for self-repair when injured and over time, may degenerate to osteoarthritis. We evaluated the most significant mile stones attained, in the pursuit of cure for cartilage defects and osteoarthritis. The basic treatment options include: Natural or physical therapy, medications, nutritional supplements, nutriceuticals and chondroprotective agents. Next are repairs and replacements, which include surgical procedures: Debridement/chondroplasty, microfracturing, mosaicplasty, periosteum transplantation, osteochondral autografting and allografting, high tibial osteotomy and total knee arthroplasty. But, current trend has shifted from repair, replacement, to most recently regeneration. Regenerations include the cell and gene therapies. While cell therapy involves the use of cells isolated from different tissues to cause regeneration of cartilage; gene therapy involves the selection of appropriate gene and optimal vector to incorporate cDNA. There has been much positivity reported with big animal models, which has led to several ongoing clinical trials. Translations of these findings hold high promises, though not without inherent regulatory hurdles. Considering the initial success rates, there are increasing hopes of realizing these treatments from bench to bedsides. Significant improvements in the treatment of cartilage degenerations and osteoarthritis have been made so far, but no gold standard delineated.
    Matched MeSH terms: Arthroplasty, Replacement, Knee
  20. Tomar L, Govil G, Dhawan P
    Malays Orthop J, 2021 Mar;15(1):128-131.
    PMID: 33880160 DOI: 10.5704/MOJ.2103.020
    Salvage total hip arthroplasty (THA) may be required to manage femoral neck fracture implant failures, avascular necrosis and secondary hip arthritis. Cannulated cancellous screws can become stripped or incarcerated during the initial implantation and pose hardware removal issues. We present a novel technique for safe screw removal in a 62-year-old female patient with a painful right hip. She had undergone cancellous screw fixation for a fracture of the neck of femur ten years ago. There was avascular necrosis with screw cut out leading to secondary hip arthritis necessitating THA. Intra-operatively cannulated cancellous screw along the inferior femoral neck region was incarcerated. After posterior dislocation of the head, the neck was osteotomised, and the screw threads were exposed for possible extraction. However, the thickened femoral neck region with solid cortical bone prevented the screw disengagement in either direction. The screw along the femoral trochanter region was cut with a Harrington cutter and the remaining screw disengaged with careful removal of bony spicules and controlled anticlockwise rotations, to remove the screw in around fifteen minutes. Arthroplasty could be completed uneventfully thereafter. We could remove the screw while avoiding an iatrogenic fracture along the calcar region and excessive bone loss along the screw track. The femoral canal remained uncompromised. The anticipation of a difficult implant removal with a thorough understanding of the devices and techniques, is an invaluable asset to the operating surgeon. With a simple tool and novel technique in a difficult situation, we can save on operating time and minimise complications.
    Matched MeSH terms: Arthroplasty, Replacement, Hip
Filters
Contact Us

Please provide feedback to Administrator (afdal@afpm.org.my)

External Links