Amputation Traumatic Fanampiana Voalohany, Tourniquets ary Fitahirizana Tapaka¶

Ny amputation traumatique (ny fanapahana tanteraka na ampahany amin'ny rantsantanana, ankihibe, tanana, sandry, rantsantongotra, tongotra, na tongotra amin'ny tsofa herinaratra, milina fanontam-pirinty indostrialy, auger fiompiana, milina fanasan-damba, fianjeran'ny fiarakodia, na fipoahana) dia miteraka vonjy taitra roa mifanandrify amin'ny fotoana mahakivy: mamonjy ny ain'ny marary amin'ny ain'ny marary mikraoba sy maratra mafy. afaka miraikitra indray (mamboly) azy**. Hatramin'ny nanombohan'ny fambolena voalohany tamin'ny rantsambatana sy ankihiben-tànan'olombelona voalohany tamin'ny taona 1960, ny microchirurgie mikraoba maoderina dia nahafahana nanjaitra lalan-dra kely kokoa noho ny 1 milimetatra (0,04 santimetatra) ny savaivony ary namerina ny asa niavaka tamin'ny ankihibe, rantsantanana, tanana, sandry, loha, sofina ary orona.

Na izany aza, raha toa ny rantsantanana iray na tanana tapaka dia azo ampidirina tsara ao amin'ny efitrano fandidiana, dia miankina tanteraka amin'ny fomba itondran'ny mpitazana sy ny mpamaly voalohany ny fototarazo nandeha ra sy ny tapany tapaka nandritra ny 15 minitra voalohany teo amin'ilay toerana. Ny lesoka roa mahatsiravina izay manimba tanteraka ny ampahany amin'ny vatana tapaka alohan'ny hahatongavany any amin'ny hopitaly dia mametraka ilay faritra tapaka mivantana eo amin'ny ranomandry na ao anaty ranomandry (izay mampivaingana sy manapotika ny lalan-dra mikroskopika, miteraka iatrogenic frostbite necrosis) ary manatsoboka ilay tapany tapaka ao anaty siny misy rano, saline, na antiseptika). Ny fahafantarana hoe rahoviana no hampiharana tourniquet windlass ara-barotra mifanohitra amin'ny fitafy fanerena eo amin'ny fototarazo, ny fomba fametahana ** tapany ("akaiky") tsy misy fanodikodinana ny tetezana hoditra sisa tavela, ary ny fomba hanangonana ny Two-Bag Moist-Cold Preservation System dia mamonjy aina sy rantsambatana.

Ataovy izao izao¶

1. **Antsoy avy hatrany ny laharana vonjy taitra eo an-toerana ary mangataha mpitsabo mpanampy Advanced Life Support (ALS). laharana vonjy maika. Ambarao mazava tsara fa manana amputation traumatique ianao mba hahafahan'ny EMS mitondra ny marary any amin'ny foibe trauma miaraka amin'ny fahaiza-manao fanodinana microvascular.
2. Tsio ny marary alohan'ny hihazana ilay tapany: fehezo aloha ny fandehanan-dra amin'ny fotony.
3. Ho an'ny rantsantanana, ankihibe, na tànana: Asandrato ny tanana eo ambonin'ny haavon'ny fo ary tsindriana mafy amin'ny tadin-drà ny tanana mandritra ny 5 ka hatramin'ny 10 minitra tsy tapaka. (Aza asiana tady fingotra, tady, na tadin-kiraro na oviana na oviana eo amin'ny fototry ny rantsan-tànana mandeha ra, satria ny rantsantanana dia mamandrika rà venous, manosihosy ny nerve nomerika, ary manimba ny fotony.)
4. Ho an'ny fanapahana ny tanany, ny sandriny, ny feny, na ny tongotra ambany (na ny fitsindronan'ny arterial tsy voafehy): Ampiharo avy hatrany ny windlass ara-barotra tourniquet (toy ny CAT na SOFTT-W) 5 hatramin'ny 7 santimetatra (2 hatramin'ny 3 santimetatra) eo ambonin'ny foto-pototry ny tapa-kazo (aza atsahatra mihitsy ny lohalika na ny lohalika). soraty ny fotoana marina eo amin'ny andilany.
5. Raha tapaka ny rantsantanana na ny rantsambatana (mbola mipetaka amin'ny hoditra, tendon, na hozatra), dia aza tapahina na esorina mihitsy. Ampifanaraho moramora amin'ny toerana anatomika voajanahary ilay faritra mihantona mba tsy hikorontana na hihodinkodina ny lalan-drà sisa ao anatin'ny tetezana hoditra, sarony amin'ny gauze tsy misy rano matimaty ny rantsambatana.
6. ** Tehirizo ny ampahany amin'ny vatana tapaka tanteraka amin'ny alàlan'ny "Fomba mangatsiaka mangatsiaka roa-kitapo" (4 degre Celsius / 39 degre Fahrenheit ny mari-pana kendrena):**
7. Dingana A (Sasana moramora raha maloto ihany): Raha latsaka ao anaty loto na vovobony ilay rantsantanana na tanana tapaka, dia kobanina moramora mandritra ny segondra vitsy miaraka amin'ny saline normal sterile (0,9% sodium chloride) na rano fisotro madio anaty tavoahangy (aza mikosoka mihitsy, ary aza mampiasa savony, alikaola, peroxyde, na iodine).
8. Dingana B (kitapo anatiny): Afangaroy amin'ny gasy sterile natsofoka kely (mando, tsy mitete) miaraka amin'ny saline normal sterile ilay tapany voatapaka, apetraho ao anaty harona plastika madio, maina, tsy misy rano ** harona plastika misy zipo ambony**, tsindriana ny rivotra tafahoatra, ary asio tombo-kase tsara.
9. Dingana C (Fandroana Slush ivelany): Apetraho ao anatin'ny ** fitoeran-javatra ivelany faharoa na kitapo feno ranomandry SY rano mangotraka 50/50 ny harona plastika voaisy tombo-kase** (mijanona ho azy amin'ny 4 degre Celsius / 39 degre Fahrenheit tsy misy hatsiaka ny fandroana ranomandry).
10. Aza apetraka mivantana eo ambonin'ny ranomandry ny rantsantanana na rantsambatana tapaka, AZA atao anaty ranomandry maina, ary AZA alentika mivantana amin'ny rano na sira. Ny fifandraisana mivantana amin'ny ranomandry dia mampivaingana ny sela velona ary miantoka ny tsy fahombiazan'ny fambolena.
11. Ataovy mandry ny marary (na apetraka amin'ny tanana maratra), tena NPO (tsy misy na inona na inona amin'ny vava), ary fonosina bodofotsy mafana. Asio ny anaran'ilay marary sy ny ora marina naratra ny kitapo ivelany, ary ataovy azo antoka fa tafiditra ao anatin'ny fiara mpamonjy voina ny kitapo mangatsiaka ** miaraka amin'ny marary**.

Hazo fanapaha-kevitra vonjy maika ho an'ny amputation traumatika tanteraka sy ampahany¶

flowchart TD
    Start["Complete or Partial Traumatic Amputation<br/>(Finger, Thumb, Hand, Arm, Toe, Foot, Leg, Ear, Nose, or Scalp)"]
    CallEMS["Call Emergency Medical Services (ALS Paramedics) Immediately<br/>Priority 1: Treat the Patient and Control Stump Hemorrhage First"]
    PartialCheck{"Is the Body Part COMPLETELY Detached<br/>or PARTIALLY Attached by a Skin/Tissue Bridge?"}
    PartialCare["PARTIAL ('NEAR') AMPUTATION PROTOCOL<br/>1. NEVER cut or sever the remaining skin/tendon bridge<br/>2. Control bleeding with firm direct pressure (or proximal tourniquet if arterial)<br/>3. Gently untwist/align part into natural anatomical position<br/>4. Cover wound with sterile saline-moistened gauze + bulky pad<br/>5. Splint limb securely; if part is completely cold/white, place cool pack<br/>   OUTSIDE a thick dry towel barrier distal to wound without freezing"]
    StumpLevel{"COMPLETE AMPUTATION: What Level of the Limb is Severed?"}
    MajorStump["MAJOR LIMB AMPUTATION (Hand, Wrist, Forearm, Upper Arm, Foot, Leg, Thigh)<br/>1. Apply Commercial Windlass Tourniquet 5-7 cm (2-3 in) ABOVE stump<br/>   (Even if arterial spasm temporarily hides spurting)<br/>2. Tighten until all bleeding stops and record exact time<br/>3. Cover raw stump end with sterile saline-moistened gauze + dry bulky dressing"]
    DigitStump["DIGIT OR FACIAL AMPUTATION (Finger, Thumb, Toe, Ear, Nose)<br/>1. Elevate hand/foot above heart level<br/>2. Apply firm direct pressure to stump with thick sterile gauze for 5-10 min<br/>3. Wrap snug pressure bandage around hand/stump<br/>4. NEVER put a rubber band or string tourniquet around the base of a finger"]
    PartCare["TWO-BAG MOIST-COLD PRESERVATION OF SEVERED PART<br/>1. Gently rinse off gross dirt with sterile saline (DO NOT scrub or use soap)<br/>2. Wrap part in sterile gauze lightly dampened with sterile normal saline<br/>3. Seal wrapped part inside a dry, watertight plastic bag (Bag 1)<br/>4. Place Bag 1 into a mixture of Crushed Ice + Water (4 deg C / 39 deg F) (Bag 2)<br/>5. NEVER touch part directly to ice; NEVER use dry ice; NEVER soak in liquid"]
    Transport["Keep Patient Warm, Calm, and Strictly NPO (Nothing by Mouth)<br/>Send labeled cooled part in the SAME ambulance with the patient"]

    Start --> CallEMS
    CallEMS --> PartialCheck
    PartialCheck -->|Partially Attached| PartialCare
    PartialCheck -->|Completely Detached| StumpLevel
    StumpLevel -->|Major Limb / Uncontrolled Arterial| MajorStump
    StumpLevel -->|Finger, Thumb, Toe, Ear, Nose| DigitStump
    MajorStump --> PartCare
    DigitStump --> PartCare
    PartialCare --> Transport
    PartCare --> Transport

Windows Time Ischemia Mafana vs. Mangatsiaka: Nahoana no manova ny famantaranandro ny fampangatsiahana rantsantanana iray vs¶

Mandra-pahoviana ny ampahany amin'ny vatana tapaka no velona tsy misy rà mandriaka alohan'ny hahafatesan'ny selany (ischemic necrosis)? Ny valiny dia miankina amin'ny zava-misy biolojika lehibe iray: raha misy hozatry ny taolana ny ampahany amin'ny vatana.

• Ny hozatry ny taolana (izay mameno ny sandriny, ny sandriny ambony, ny feny, ny tongotra ambany, ary ny felatana) dia mitaky oksizenina metabolika be dia be. Amin'ny mari-pana ao amin'ny efitrano (ischemia mafana), ny hozatra skeletal tapaka dia manomboka maty tsy azo iverenana intsony ary mamoaka potasioma sy myoglobin misy poizina rehefa afaka 4 hatramin'ny 6 ora.
• Ny rantsantanana sy ny ankihibe (isa), mifanohitra amin'izany, misy hozatra taolana ZERO. Ny hozatra izay manetsika ny rantsan-tànanao dia mipetraka eo amin'ny sandrinao sy ny felatananao, misintona amin'ny rantsantanana amin'ny tady fotsy lava (tendons). Satria taolana, hozatra, nerveuses, lalan-dra, tavy ary hoditra (izay manana oksizenina metabolika ambany dia ambany avokoa) ny rantsantanana iray, dia azo ambolena tsara ny rantsantanana na ankihibe efa mangatsiaka tsara hatramin'ny 12 ora aorian'ny ischemia mafana, na hatramin'ny 24 ora (ary amin'ny tranga voarakitra 30+ ora) rehefa voatahiry ao amin'ny 4 degre Celsius (39 degre)

Mechanisms of amputation: Why a Guillotine Cut is easier to replant than an Avulsion or Crush¶

Microsurgeons examine how the part was severed because the mechanism determines how many centimeters of damaged artery must be trimmed or replaced with a vein graft:

1. Sharp ("Guillotine") Amputation: Caused by a chef's knife, sheet metal, guillotine paper cutter, glass pane, or machete. The skin, bone, tendons, nerves, and arteries are sliced cleanly in a single narrow plane with minimal bruising on either side. Carries the highest replantation success rate (85% to 92%).
2. Local Crush Amputation: Caused by a heavy steel beam, log splitter, car door, or hydraulic press dropping onto a finger or hand. The blood vessels are crushed over a 1-to-3-centimeter (0.5-to-1.2-inch) zone, requiring surgical vessel trimming and shortening of the bone or interposition vein grafts.
3. Avulsion (Pull-Off) or "Ring Avulsion" Amputation: Caused when a limb is caught in a rotating auger, rope, PTO shaft, or when a wedding ring catches on a ladder, fence, or truck bed as the person jumps down, stripping the skin, nerves, and long coiled ribbons of digital arteries out of the finger like pulling off a glove. Even though the bone may still be intact inside a "degloved" ring avulsion, the microscopic inner lining (tunica intima) of the arteries is stretched and torn several centimeters up into the palm (the "Red Ribbon Sign" on the side of the vessel), requiring complex microsurgical vein transfers.

Step-by-step technique: Caring for the Patient and the Stump¶

Step 1: Control bleeding on the Stump (Direct Pressure vs. Windlass Tourniquet)¶

1. For Finger, Thumb, or Toe Amputations:
2. Have the patient sit or lie down and elevate the injured hand or foot above heart level.
3. Place a thick stack of sterile gauze pads directly over the bleeding stump and press firmly with your gloved fingers for 5 to 10 minutes without peeking.
4. Once active spurting subsides, wrap a snug (not constricting) sterile roller bandage over the stump and hand.
5. Why you must NEVER tie a rubber band, string, hair tie, or clamping forceps onto a bleeding finger stump: Every digital artery runs side-by-side with the digital nerve in a tiny neurovascular bundle less than 2 millimeters wide. Clamping a hemostat blindly into a finger stump or tying a tight rubber band around the base of a finger crushes the digital nerve and healthy artery segment that the microsurgeon needs to sew the finger back on, and can cause gangrene of the remaining finger stump. Direct pressure and elevation will control 99 percent of digital amputations.
6. For Major Limb Amputations (Hand, Wrist, Forearm, Arm, Foot, Leg, Thigh):
7. Immediately apply a commercial windlass tourniquet (CAT, SOFTT-W, or SAM XT) 5 to 7 centimeters (2 to 3 inches) proximal (above) the amputation wound directly onto bare skin if possible.
8. Never place a tourniquet over the elbow or knee joint (where the two forearm or lower-leg bones shield the interosseous arteries from compression); if the amputation is just below the knee or elbow, place the tourniquet right above the knee or elbow on the single thigh or upper-arm bone.
9. Tighten the windlass until all bright red bleeding stops completely, secure the rod in the clip, and write the exact time of application on the tourniquet label and on the patient's forehead.
10. Cover the raw end of the stump with a sterile gauze pad moistened with sterile normal saline, topped with a dry bulky trauma dressing and wrapped snugly to protect the exposed bone and nerve ends from the air.

Step 2: Managing a Partial ("Near" or Incomplete) Amputation¶

When a saw, lawnmower, or crash leaves a finger, hand, or foot hanging by a bridge of skin, muscle, or tendon: 1. Never complete the amputation: Even a 1-centimeter (0.4-inch) strip of intact skin on the back of a finger often contains the dorsal veins and lymphatic vessels needed to drain blood from the finger after the surgeon repairs the palm-side artery. Cutting that skin bridge destroys the venous drainage and can doom the finger. 2. Gently untwist and align: If the partially severed hand, foot, or finger is twisted 90 or 180 degrees or folded backward, gently lift and support it back into its normal anatomical alignment so the blood vessels inside the skin bridge are unkinked. 3. Dress and splint: Cover the open laceration and exposed bone with sterile saline-moistened gauze, pad generously around the digit or limb with dry sterile dressings, and splint the entire hand/wrist or foot/ankle on a padded board or malleable splint so it cannot flop or twist during transport. 4. How do you cool a PARTIALLY amputated part that has no blood flow? If the partially attached hand or finger beyond the cut is completely white, cold, and pulseless (meaning the artery is severed and only skin/tendon remains attached), wrap the splinted part in a thick dry sterile dressing and towel first, and lay a cool pack outside the thick towel barrier next to the ischemic part so it stays gently cool without freezing either the part or the living skin bridge.

Step-by-step technique: The "Two-Bag Moist-Cold Method" for Severed Parts¶

Every person at the scene should know how to package a completely severed finger, thumb, hand, ear, nose, scalp, or tooth/bone fragment so it arrives at the hospital in peak biological condition:

Step 1: Locate and gently handle the severed part¶

• Assign a bystander to search the scene for ALL severed parts (if multiple fingers were cut by a saw, check inside work gloves, on the saw table, or in clothing folds: even a severely mangled finger that cannot be replanted itself is extraordinarily valuable to a microsurgeon as a "spare-parts bank" to harvest matching nerves, arteries, veins, skin, or bone grafts to save the patient's thumb or other fingers).
• Pick up the part with clean medical gloves. Never pinch or pull on delicate dangling blood vessels or nerve threads trailing from the cut end.

Step 2: Rinse gently ONLY if grossly contaminated (Never Scrub)¶

• If the part is clean, do not wash it.
• If it is covered in dirt, grass, or sawdust, hold it gently and pour a gentle stream of sterile 0.9% normal saline (or clean bottled drinking water if saline is unavailable) over it to float away loose debris.
• Never scrub, brush, or wipe the cut surface, and never touch the severed part with soap, rubbing alcohol, hydrogen peroxide, povidone-iodine (Betadine), chlorhexidine, or tap water baths. Antiseptics chemically cauterize and kill the delicate endothelial cells lining the microscopic arteries.

Step 3: Wrap in a Damp (Not Dripping) Sterile Gauze Layer¶

• Take a sterile gauze pad or clean lint-free cloth and moisten it with sterile normal saline (or clean potable water), then wring out the excess liquid so the gauze is lightly damp, NOT soaking wet.
• Wrap the damp gauze completely around the severed finger or limb. This damp layer prevents air desiccation while acting as an insulating cushion inside the bag.

Step 4: Seal Inside Watertight Bag #1 (The Dry Inner Barrier)¶

• Place the gauze-wrapped body part inside a clean, watertight zip-top plastic bag (or a sterile specimen cup/container for a fingertip, ear, or nose; or a clean heavy-duty plastic trash bag for a forearm or foot).
• Gently press out excess air and seal the bag completely watertight so no melting water from the outside can leak in and soak the tissue.

Step 5: Submerge Bag #1 into Bag #2 Containing a 50/50 Ice-and-Water Slush Bath¶

• Take a second larger plastic bag, bucket, or cooler and fill it with roughly equal parts regular crushed/cubed ice AND cold tap water (an ice-water slush bath).
• Place the sealed Bag #1 inside Bag #2 so it floats in the ice-water mixture.

Step 6: Label and Transport Together¶

• Write the patient's full name, the body part, and the exact time of the amputation on a piece of tape on the outside of Bag #2.
• Keep the patient warm (wrapped in blankets to prevent systemic hypothermia and vasospasm), strictly NPO (nothing by mouth) so emergency anesthesia can begin immediately, and send the cooled severed part in the exact same ambulance with the patient.

Special amputation scenarios: Scalp, Ear, Nose, Pediatric Fingertips, and Why Nicotine/Caffeine Must Be Avoided¶

1. Scalp Avulsions, Severed Ears, Noses, and Lips¶

When long hair gets caught in industrial machinery or a dog bite or crash severs an ear, nose, or lip: * Scalp Avulsion: The scalp has one of the richest arterial networks in the body and bleeds profusely. Control scalp bleeding with firm direct pressure and a snug head wrap, and preserve the entire avulsed scalp (including the hair) using the exact same Two-Bag Moist-Cold Method. Microsurgeons can reconnect a single superficial temporal artery and vein to restore the entire hair-bearing scalp. * Ears, Noses, and Lips: Preserve every detached piece of cartilage and skin using the Two-Bag Moist-Cold Method. Even if microvascular anastomosis of a tiny ear vessel is not possible, plastic surgeons use the preserved cartilage framework for composite reconstruction.

2. Pediatric Fingertip Amputations (Car Doors and Hinges)¶

Young children frequently suffer fingertip amputations when a heavy door slams on their finger: * Children have extraordinary regenerative and microvascular healing capacity. Even a tiny fingertip cap severed beyond the last knuckle (distal phalanx) in a child can often be reattached as a composite graft or microsurgical replant if cooled properly in a damp gauze inside a sealed bag on an ice-water bath.

3. Absolute Prohibition on Smoking, Nicotine, Vaping, and Caffeine¶

In the prehospital setting and for weeks after replantation surgery, the patient must be strictly instructed: zero cigarettes, zero nicotine vapes or pouches, and zero caffeine: * Nicotine is one of the most potent peripheral arterial vasoconstrictors known. Taking even a single puff of a cigarette or vape triggers violent spasm of the repaired 0.8-millimeter digital arteries, dropping blood flow to the replanted finger by more than 80 percent and causing immediate thrombosis and death of the reattached part. * For the exact same reason, keep the patient's core body warm with blankets in the ambulance; shivering and cold exposure trigger sympathetic vasoconstriction in the hands and feet.

Calm, methodical hemorrhage control and proper two-bag cold preservation give microsurgeons the best possible chance to restore a person's hand or limb. Consider taking a certified first aid and Stop the Bleed course through your national Red Cross or Red Crescent society, the American College of Surgeons, or St John Ambulance.

Frequently asked questions¶

Sources checked¶

• American Society for Surgery of the Hand (ASSH, United States): Clinical Guidelines on Emergency Care for Amputated Digits, Hands, and Limbs (The Two-Bag Preservation Protocol and Replantation Indications).
• British Society for Surgery of the Hand (BSSH) & British Association of Plastic, Reconstructive and Aesthetic Surgeons (BAPRAS, United Kingdom): Standards for Management of Major Upper Extremity Trauma and Amputation Replantation.
• American College of Surgeons (ACS, United States): Stop the Bleed & Advanced Trauma Life Support (ATLS): Extremity Hemorrhage Control, Windlass Tourniquets, and Traumatic Amputation Triage.
• Committee on Tactical Combat Casualty Care (CoTCCC / Joint Trauma System, United States): TCCC Guidelines: Tourniquet Application for Traumatic Amputations.
• International Federation of Red Cross and Red Crescent Societies (IFRC, International): International First Aid, Resuscitation, and Education Guidelines: Amputations and Severe Bleeding.

Mpitarika mifandraika¶

• Fanaraha-maso ny fandehanan-dra mafy sy tourniquets
• Varavarana misokatra (tambajotra) sy fisarahana
• Ny ratra amin'ny ratra sy ny fanekena ny syndrome compartment
• Shock recognition and emergency care
• Fahamendrehana nify sy nify tapaka
• Emergency numbers and international dispatch