MyMedR

Stability of cervical spine after one-level corpectomy using different numbers of screws and plate systems

Rosli R, Abdul Kadir MR, Kamarul T

Proc Inst Mech Eng H, 2014 Apr;228(4):342-9.

PMID: 24622982 DOI: 10.1177/0954411914527074

Anterior corpectomy and reconstruction using a plate with locking screws are standard procedures for the treatment of cervical spondylotic myelopathy. Although adding more screws to the construct will normally result in improved fixation stability, several issues need to be considered. Past reports have suggested that increasing the number of screws can result in the increase in spinal rigidity, decreased spine mobility, loss of bone and, possibly, screw loosening. In order to overcome this, options to have constrained, semi-constrained or hybrid screw and plate systems were later introduced. The purpose of this study is to compare the stability achieved by four and two screws using different plate systems after one-level corpectomy with placement of cage. A three-dimensional finite-element model of an intact C1-C7 segment was developed from computer tomography data sets, including the cortical bone, soft tissue and simulated corpectomy fusion at C4-C5. A spinal cage and an anterior cervical plate with different numbers of screws and plate systems were constructed to a fit one-level corpectomy of C5. Moment load of 1.0 N m was applied to the superior surface of C1, with C7 was fixed in all degrees of freedom. The kinematic stability of a two-screw plate was found to be statistically equivalent to a four-screw plate for one-level corpectomy. Thus, it can be a better option of fusion and infers comparable stability after one-level anterior cervical corpectomy, instead of a four-screw plate.

Matched MeSH terms: Reconstructive Surgical Procedures/instrumentation*

Fulltext Soft tissue reconstruction following hemipelvectomy: eight-year experience and literature review

Mat Saad AZ, Halim AS, Faisham WI, Azman WS, Zulmi W

ScientificWorldJournal, 2012;2012:702904.

PMID: 22629187 DOI: 10.1100/2012/702904

Hemipelvectomy is a major surgical procedure that associates with significant morbidity, functional impairment, and psychological and body image problem. Reconstruction of the defect is a challenged since a large amount of composite tissues are needed. We would like to share our eight-year experience with massive pelvic resection and reconstruction.

Matched MeSH terms: Reconstructive Surgical Procedures/instrumentation*

Biomechanical assessment of surgical repair of the mitral valve

Al-Atabi M, Espino DM, Hukins DW, Buchan KG

Proc Inst Mech Eng H, 2012 Apr;226(4):275-87.

PMID: 22611868

Repair of the mitral valve is defined (loosely) as a procedure that alters the valve structure, without replacement, enabling the natural valve itself to continue to perform under the physical conditions to which it is exposed. As the mitral valve is driven by flow and pressure, it should be feasible to analyse and assess its function, failure and repair as a mechanical system. This article reviews the current state of mechanical evaluation of surgical repairs of the failed mitral valve of the heart. This review describes the anatomy and physiology of the mitral valve, followed by the failure of the mitral valve from a mechanical point of view. The surgical methods used to repair failed valves are introduced, while the use of engineering analysis to aid understanding of mitral valve repair is also reviewed. Finally, a section on recommendations for development and future uses of engineering techniques to surgical repair are presented.

Matched MeSH terms: Reconstructive Surgical Procedures/instrumentation

Use of dermal regeneration template (INTEGRA) in reconstructive burn surgery

Sasidaran R, Dorai AA, Sulaiman WA, Halim AS

Med J Malaysia, 2008 Jul;63 Suppl A:29.

PMID: 19024967

We present our two year experience with a dermal regeneration template (INTEGRA) in burn reconstructive surgery for contracture release as well as a reconstructive tool for management of soft tissue loss.

Matched MeSH terms: Reconstructive Surgical Procedures/instrumentation*

Massive Traumatic Skin Defect Successfully Treated with Autologous, Bilayered, Tissue-Engineered MyDerm Skin Substitute: A Case Report

Mohamed Haflah NH, Ng MH, Mohd Yunus MH, Naicker AS, Htwe O, Abdul Razak KA, et al.

JBJS Case Connect, 2018 6 15;8(2):e38.

PMID: 29901479 DOI: 10.2106/JBJS.CC.17.00250

CASE: A 22-year-old man sustained a laceration that measured 180 cm, after debridement, over the anterolateral aspect of the right leg following a road traffic accident. The wound was treated with MyDerm (Universiti Kebangsaan Malaysia), a cell-based, bilayered, bioengineered dermal substitute that contains no animal-derived components and is fully autologous. For its construction, only a small area of skin was harvested from the left groin, which was closed primarily with absorbable sutures.

CONCLUSION: MyDerm is an alternative option for the treatment of a massive skin defect in patients who desire removal of only a negligible amount of skin from the donor site and when use of an autograft is insufficient.

Matched MeSH terms: Reconstructive Surgical Procedures/instrumentation*

Displaying all 5 publications