Safety Data Sheet - National University of Singapore

Foot and Ankle Dissection GuideLandmarks:-Lateral malleolus-Medial malleolus-TA and EHL tendons-Base of 5th MTApproaches:-Lateral approach to fibulaPosition:Supine with bump under ipsilateral sideIncision:Longitudinal incision directly over the fibula (mid line or slightly posterior depending onplate)Incise the peroneal sheathRetract the tendons anteriorly and elevate the periosteum off of boneapprox 7-10 cm prox to the distal tip of the fibula you will encounter SPN-Posterolateral approach to tibiaPosition:Lateral with the affected side away from the table, or proneIncision:Palpate the lateral Achilles and the peroneal tendonsMake a longitudinal incision lateral to the Achilles tendonIdentify the Achilles facia and the peroneal faciaIncise the deep facia and develop a plane between peroneus brevis and FHLIncise the FHL along its lateral origin, down to boneIncise the periosteum of the tibia and expose the boneDistally you will encounter the PITFL and the transverse and posterior TFLsIf you incise these ligaments you will expose the postlat joint capsule-Posteromedial approach to AchillesPosition:Supine in figure four, or lateral with injured side nearest table, or proneIncision:Palpate Achilles and make a longitudinal incision through skin medial to tendonIncise the deep facia which is encountered firstIdentify FHL, it is the only muscle with muscle fibers near the ankleRetract FHL along with the NV bundle mediallyNow you can identify and expose the Achilles tendon for repairAdditionally, you can retract the Achilles laterally and expose the postmed ankle joint-Medial approach to medial malleolusPosition:Supine, bump contralateral sideIncision:May go anterior or posterior to medial malleolusAnterior approach allows visualization of anteromedial ankle joint and talar domePosterior approach allows visualization of posterior margin of tibia

Personal protective equipmentEye/face protectionUse equipment for eye protection tested and approved under appropriate government standardssuch as NIOSH (US) or EN 166(EU).Skin protectionHandle with gloves. Gloves must be inspected prior to use. Use proper glove removal technique(without touching glove's outer surface) to avoid skin contact with this product. Dispose ofcontaminated gloves after use in accordance with applicable laws and good laboratory practices.Wash and dry hands.The selected protective gloves have to satisfy the specifications of EU Directive 89/686/EEC and thestandard EN 374 derived from it.Body ProtectionChoose body protection in relation to its type, to the concentration and amount of dangeroussubstances, and to the specific work-place., The type of protective equipment must be selectedaccording to the concentration and amount of the dangerous substance at the specific workplace.Respiratory protectionRespiratory protection is not required. Where protection from nuisance levels of dusts are desired,use type N95 (US) or type P1 (EN 143) dust masks. Use respirators and components tested andapproved under appropriate government standards such as NIOSH (US) or CEN (EU).9. PHYSICAL AND CHEMICAL PROPERTIES9.1 Information on basic physical and chemical propertiesa) Appearance Form: powderColour: whiteb) Odour no data availablec) Odour Threshold no data availabled) pH no data availablee) Melting point/freezingpointf) Initial boiling point andboiling rangeno data availableno data availableg) Flash point no data availableh) Evaporation rate no data availablei) Flammability (solid, gas) no data availablej) Upper/lowerflammability orexplosive limitsno data availablek) Vapour pressure no data availablel) Vapour density no data availablem) Relative density no data availablen) Water solubility no data availableo) Partition coefficient: n-octanol/waterp) Autoignitiontemperatureq) Decompositiontemperatureno data availableno data availableno data availabler) Viscosity no data availableSigma - A8960 Page 3 of 6

10. STABILITY AND REACTIVITY10.1 Reactivityno data available10.2 Chemical stabilityno data available10.3 Possibility of hazardous reactionsno data available10.4 Conditions to avoidno data available10.5 Incompatible materialsStrong oxidizing agents10.6 Hazardous decomposition productsOther decomposition products - no data available11. TOXICOLOGICAL INFORMATION11.1 Information on toxicological effectsAcute toxicityno data availableSkin corrosion/irritationno data availableSerious eye damage/eye irritationno data availableRespiratory or skin sensitizationno data availableGerm cell mutagenicityno data availableCarcinogenicityIARC:Reproductive toxicityno data availableNo component of this product present at levels greater than or equal to 0.1% is identified asprobable, possible or confirmed human carcinogen by IARC.Specific target organ toxicity - single exposureno data availableSpecific target organ toxicity - repeated exposureno data availableAspiration hazardno data availablePotential health effectsInhalationIngestionSkinEyesMay be harmful if inhaled. May cause respiratory tract irritation.May be harmful if swallowed.May be harmful if absorbed through skin. May cause skin irritation.May cause eye irritation.Signs and Symptoms of ExposureTo the best of our knowledge, the chemical, physical, and toxicological properties have not been thoroughlyinvestigated.Additional InformationRTECS: Not availableSigma - A8960 Page 4 of 6

12. ECOLOGICAL INFORMATION12.1 Toxicityno data available12.2 Persistence and degradabilityno data available12.3 Bioaccumulative potentialno data available12.4 Mobility in soilno data available12.5 Results of PBT and vPvB assessmentno data available12.6 Other adverse effectsno data available13. DISPOSAL CONSIDERATIONS13.1 Waste treatment methodsProductOffer surplus and non-recyclable solutions to a licensed disposal company.Contaminated packagingDispose of as unused product.14. TRANSPORT INFORMATION14.1 UN numberADR/RID: - IMDG: - IATA: -14.2 UN proper shipping nameADR/RID: Not dangerous goodsIMDG: Not dangerous goodsIATA: Not dangerous goods14.3 Transport hazard class(es)ADR/RID: - IMDG: - IATA: -14.4 Packaging groupADR/RID: - IMDG: - IATA: -14.5 Environmental hazardsADR/RID: no IMDG Marine pollutant: no IATA: no14.6 Special precautions for userno data available15. REGULATORY INFORMATION15.1 Safety, health and environmental regulations/legislation specific for the substance or mixtureNotification statusAICS:DSL:ENCS:IECSC:Not in compliance with the inventory - L-Ascorbic acid, 2-(dihydrogenphosphate), magnesium salt hydrateThis product contains the following components that are not on the CanadianDSL nor NDSL lists. - L-Ascorbic acid, 2-(dihydrogen phosphate), magnesiumsalt hydrateOn the inventory, or in compliance with the inventoryOn the inventory, or in compliance with the inventorySigma - A8960 Page 5 of 6

ISHL:KECI:NZIoC:PICCS:Not in compliance with the inventory - L-Ascorbic acid, 2-(dihydrogenphosphate), magnesium salt hydrateNot in compliance with the inventory - L-Ascorbic acid, 2-(dihydrogenphosphate), magnesium salt hydrateNot in compliance with the inventory - L-Ascorbic acid, 2-(dihydrogenphosphate), magnesium salt hydrateNot in compliance with the inventory - L-Ascorbic acid, 2-(dihydrogenphosphate), magnesium salt hydrate16. OTHER INFORMATIONFurther informationCopyright 2011 Sigma-Aldrich Co. License granted to make unlimited paper copies for internal use only.The above information is believed to be correct but does not purport to be all inclusive and shall be usedonly as a guide. The information in this document is based on the present state of our knowledge and isapplicable to the product with regard to appropriate safety precautions. It does not represent anyguarantee of the properties of the product. Sigma-Aldrich Co., shall not be held liable for any damageresulting from handling or from contact with the above product. See reverse side of invoice or packing slipfor additional terms and conditions of sale.Sigma - A8960 Page 6 of 6