1.Reconstruction with Composite Cement Autoclaved Autograft after a Near Total Excision of the Humerus for Osteosarcoma: A Case Report
Pan KL ; Zolqarnain A ; Ong GB
Malaysian Orthopaedic Journal 2009;3(2):55-57
Osteosarcoma occurring in the humerus is often confined to the proximal part, in which case, reconstruction after excision is less daunting. When the tumour spreads down the medullary cavity distally, a total humeral replacement is often required. This is costly and beyond the means of the average patient in a developing country. An amputation is often the procedure of first resort. We report a 13 year old boy with osteosarcoma originating from the left proximal humerus, with involvement of the marrow reaching down to the distal diaphyseal metaphyseal junction, leaving only 6 cm of the distal humerus intact after wide resection. Reconstruction of the defect was done with a composite cement autoclaved autograft fixed to the remaining humerus with a plate. At 40 months of follow up, the patient is well with normal function of the elbow, wrist and hand. Salvaging the limb despite near total involvement of the humerus by high grade osteosarcoma is possible using material available in the average orthopaedic operating room.
Orthopaedic
2.Non-Bacterial Chronic Recurrent Osteomyelitis of the Clavicle
KL Pan ; WH Chan ; GB Ong ; M Zulqarnaen ; DK Norlida
Malaysian Orthopaedic Journal 2012;6(1):57-60
This report details the case of a 12-year-old girl with a
painful, progressive swelling of the medial portion of the
clavicle with no history of trauma or other constitutional
symptoms. All laboratory investigations were normal except
for an elevated erythrocyte sedimentation rate (ESR). Initial plain radiographs showed a destructive lesion with magnetic resonance imaging showing features of malignancy.
Biopsies revealed osteomyelitis, but with negative bacterial cultures and no evidence of malignancy. Treatment with antibiotics did not result in a favourable response. Over time, the swelling increased in size with episodic exacerbations of pain. Follow-up radiographs showed sclerosis and hyperostosis. After five years, this was recognized as non-bacterial chronic recurrent osteomyelitis of the clavicle.
3.Large Volume Osteosarcomas of the Femur Treated with Total Femoral Replacement
Pan KL ; Chan WH ; Shanmugam P ; Ong GB ; Kamaruddin F ; Tan S
Malaysian Orthopaedic Journal 2014;8(1):32-36
Patients with extensive malignancies involving the femur
often require total femoral replacement when their limbs can
be salvaged. Reported series are small and involve
heterogeneity of tumours. We present nine patients with
osteosarcomas of the femur treated at our institution between
2003 and 2010 with a mean follow-up of 27 (6 to 56)
months. Their ages ranged from 9 to 17 (mean 14 years).
They had large volume tumours (mean 911 cm3
) and
presented late with a mean of 5.5 months from the onset of
symptoms to definitive treatment. All patients underwent
resection and total femur replacement. Six patients have
died and two are alive with good function at the time of this
report. One was lost to follow-up. These patients require a
high level of treatment care and have a guarded prognosis
Osteosarcoma