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General Surgery

Dautrey Procedure

The Dautrey procedure is a surgical intervention aimed at preventing dislocation of the temporomandibular joint (TMJ) by creating a mechanical obstacle that restricts abnormal forward translation of the condylar head. This technique is particularly beneficial for patients who experience recurrent TMJ dislocations or subluxations, especially when conservative management strategies have proven ineffective.

  1. Indications:

    • The Dautrey procedure is indicated for patients with a history of recurrent TMJ dislocations. It is particularly useful when conservative treatments, such as physical therapy or splint therapy, have failed to provide adequate stabilization of the joint.
  2. Surgical Technique:

    • Osteotomy of the Zygomatic Arch: The procedure begins with an osteotomy, which involves surgically cutting the zygomatic arch, the bony structure that forms the prominence of the cheek.
    • Depressing the Zygomatic Arch: After the osteotomy, the zygomatic arch is depressed in front of the condylar head. This depression creates a physical barrier that acts as an obstacle to the forward movement of the condylar head during jaw opening or excessive movement.
    • Stabilization: The newly positioned zygomatic arch limits the range of motion of the condylar head, thereby reducing the risk of dislocation during functional activities such as chewing or speaking.
  3. Mechanism of Action:

    • By altering the position of the zygomatic arch, the Dautrey procedure effectively changes the biomechanics of the TMJ. The new position of the zygomatic arch prevents the condylar head from translating too far forward, which is a common cause of dislocation.
  4. Postoperative Care:

    • Following the procedure, patients may require a period of recovery and rehabilitation. This may include:
      • Dietary Modifications: Soft diet to minimize stress on the TMJ during the healing process.
      • Pain Management: Use of analgesics to manage postoperative discomfort.
      • Physical Therapy: Exercises to restore normal function and range of motion in the jaw.
  5. Outcomes:

    • The Dautrey procedure has been shown to be effective in preventing recurrent TMJ dislocations. Patients often experience improved joint stability and a better quality of life following the surgery. Successful outcomes can lead to reduced pain, improved jaw function, and enhanced overall satisfaction with treatment.

Walsham’s Forceps

Walsham’s forceps are specialized surgical instruments used primarily in the manipulation and reduction of fractured nasal fragments. They are particularly useful in the management of nasal fractures, allowing for precise adjustment and stabilization of the bone fragments during the reduction process.

  1. Design:

    • Curved Blades: Walsham’s forceps feature two curved blades—one padded and one unpadded. The curvature of the blades allows for better access and manipulation of the nasal structures.
    • Padded Blade: The padded blade is designed to provide a gentle grip on the external surface of the nasal bone and surrounding tissues, minimizing trauma during manipulation.
    • Unpadded Blade: The unpadded blade is inserted into the nostril and is used to secure the internal aspect of the nasal bone and associated fragments.
  2. Usage:

    • Insertion: The unpadded blade is carefully passed up the nostril to reach the fractured nasal bone and the associated fragment of the frontal process of the maxilla.
    • Securing Fragments: Once in position, the nasal bone and the associated fragment are secured between the padded blade externally and the unpadded blade internally.
    • Manipulation: The surgeon can then manipulate the fragments into their correct anatomical position, ensuring proper alignment and stabilization.
  3. Indications:

    • Walsham’s forceps are indicated for use in cases of nasal fractures, particularly when there is displacement of the nasal bones or associated structures. They are commonly used in both emergency and elective settings for nasal fracture management.
  4. Advantages:

    • Precision: The design of the forceps allows for precise manipulation of the nasal fragments, which is crucial for achieving optimal alignment and aesthetic outcomes.
    • Minimized Trauma: The padded blade helps to reduce trauma to the surrounding soft tissues, which can be a concern during the reduction of nasal fractures.
  5. Postoperative Considerations:

    • After manipulation and reduction of the nasal fragments, appropriate postoperative care is essential to monitor for complications such as swelling, infection, or malunion. Follow-up appointments may be necessary to assess healing and ensure that the nasal structure remains stable.

An ulcer is a break in the continuity of the skin or the mucous membrane.

Mode of onset:  Traumatic ulcers heal when the traumatic agent is removed., If it persists it becomes chronic as in the case of dental ulcer of the tongue. Ulcers may develop spontaneously as in the case of gumma (syphilitic ulcer). It may develop with varicose veins called varicose ulcer, which develops in the lower third of the leg.

Sometimes a malignant ulcer develops in a scar called Marjolin’s ulcer. Special features are:

 No pain - as there are no nerves. It does not spread - as there is scar tissue. No metastases - as there are no lymphatics Treatment:- Wide excision.

Classification of Ulcer

A) Pathologically

I. Non-specific ulcers:

a. Due to infected wound after trauma, that is physical or chemical agents.

b. Due to local infection example dental ulcer, pressure sore

 Specific ulcers: Caused by specific infection

a. Syphilitic ulcers (Hunterian chancre)

b. Tubercular  ulcers, actinomycosis

Trophic ulcer:- Caused by two factors:

Diminished nutrition due to inadequate blood supply to the tissues

Eg. Ulcers in Buerger’s Disease, Artherosclerosis

b. Diminished or absence of sensation of the skin leading to perforating ulcer of the foot

iv. Malignant ulcer: Due to squamous cell carcinoma, rodent ulcers and melanoma.

B) Clinical classification of ulcers

1. Acute Ulcer:  The edge is inflamed oedematous and painful with slough in the floor and n o granulation tissue. Profuse purulent Discgarge seen

2. Healing ulcers: edge sloping with bluish margin The floor is covered with a red, healthy granulation tissue.

3. Chronic or callous ulcer (non- healing) There is no tendency to heal by itself, the base is jndurated  unhealthy granulation tissue is present in the floor The edge is rounded and thickened.

Chronic ulcer occur due to:

Chronic infection , Defective circulation , Foreign body, Persistent local oedema , Malignancy , Diabetes , Malnutrition (loss of proteins), Gout

Specific Ulcers

Tubeculous Ulcer

Edge Undermined, floor contains granulation tissue a watery discharge is present. Caseous material is found in the floor of the ulcer. It usually occurs in tubercular lymphadenitis in the neck, axilla or groin.

Syphilitic Ulcer

a) Huntarian Chancre or  primary sore or hard chancre: usuaIly occurs over the genitalia especially on penis. Occurs in the primary stage of syphilis Ulcer is round or oval, it is hard,indurated, elevated and painless It feels like a button, discharges serum containing spirochetes (cork screw) which is highly infective.

b) In the Secondary stage mucous patches and condylomata occurs The ulcers are shallow white patches, of sodden thickness which occur in the mouth and tongue. Condyloma are hypertrophied epithelium with serous discharge occurring in mucocutaneous junction around the anus. The regional lymphnod (inguinal transverse chain) are enlarged.

c) In tertiary stage of syphilis gummatous ulcers occur They have a punched  out edge and wash Ieather floor. They occur on the subcutaneous bones like sternum and tibia. They are painless and refuse to heal.

Soft Sore (chanchroid)

They are painful muitiple ulcers, with copious discharge. They are caused by Bacillus Ducrey  lncubation time is 3 to 4 days. located on glans penis and prepuce is due to venereal infection. They are associated with enlarged called bilateral inguinal lymphnodes

Tropical ulcer:

a) Oriental Sore - due to L. Tropica (lieshmaniasis)

b) Ulcers and sinuses are due to guinea worm abscess

c) Histoplasmosis with multiple ulcers on the tibia.

d) Chronic ulcers due to yaws

e) Amoebic ulcers occur in colon_and rectum , flask shaped ulcers , undermined edge , caused by  Entamoeba Histolytica

Varicose Ulcer:

Associated with varicose veins. Occurs on the inner aspect of the lower third of leg , chronic ulcer The surrounding area is pigmented and eczema is present. The sore is longitudinally oval It does not penetrate the deep fascia and is painless The base is adherent to the periosteum of the tibia

Rodent ulcer

Usually Occurs on the face above a line joining the lobule of the ear to the angle of the mouth. Usually occurs at the inner canthous of the eye . Edge is raised and rolled, Erodes the deeper structures and the bone, the lyrnph nodes are not involved.

Treatment: If small wide excision is done with skin grafting, If large, radiotherapy is given.

Malignant Ulcer

Occurs due to chronic irritation as in the case of malignant ulcer of the tongue. The edge is everted. The floor is covered with slough and tumor tissue The regional lymph nodes are hard.

Initially mobile later becomes hard

Treatment: Wide excision is done.

Marjolin ulcer: Malignant Ulcer occurring on scar of Burns

1 Cellulitis: a non-suppurative inflammation of subcutaneous tissue, extending along connective tissue planes and across intercellular spaces.

Spreading inflammation in the tissue planes is called cellulitis. There is wide spread swelling, redness and pain without definite localization.

Caused by Streptococcus pyogenes.. If general condition of the patient is undermined, as in diabetes, cellulitis spreads rapidly and leads to Septicemia (infection in the blood).Redness, itching and stiffness is present in the site of inoculation (where the bacteria enter the skin), local Gangrene (death of the tissue) may occur. The appearance of skin creases or wrinkles, indicates resolution (healing).

Treatment

1. Rest , Appropriate antibiotics.

Cellulitis of the neck: Is a complication of wounds tonsillitis or mastoiditis Ludwig’s angina is the term applied to sub-maxillary cellulitis. The two dangers of cervical cellulitis are:

1. Oedema of glottis - with possible asphyxia (respiratory obstructon )

2. Mediastinitis - In ludwig’s angina the floor of the mouth become oedematous. The tongue can be seen displaced, turned upwards by swelling and oedema. The patient is unable to close the mouth owing to oedema of the tongue and the floor of the mouth. This can also CCC when the tongue is bitten by a wasp.

 

Ludwig’s angina: Ludwig - characterized by a brawny (non pitting) swelling of the sub-mandibular region, corn with inflammatory oedema of the mouth. It is the combined cervical and intrabuccal signs that constitute the characteristic feature of the lesion. The cause of the condition is virulent, usually streptococcal infection of the cellular tissue surrounding the sub-mandibular salivary gland.

Clinical features

 The swollen tongue is pushed towards the palate and forwards through the open mouth, while the cellulitis extends down the neck.

The most dangerous plane, is deep to the deep fascia.

Ludwig’s angina is an infection of closed fascial space and if .untreated, the inflammatory exudate often passes via, the tunnel occupied by stylohyhoid to the submucosa of glottis, in which event the patient is in immediate danger of death from oedema of the glottis.

Treatment

1. antibiotics on Early Diagnosis

2. In cases where the swelling, both cervical and intrabuccal, does not subside rapidly with such treatment, a curved incision, beneath the jaw is made and this decompresses the closed fascial space. The incision is deepened and after displacing the superficial lobe of the sub-mandibular salivary gland, the mylohyoid muscle are divided. This decompresses the closed fascjal space referred to. The wound is lightly sutured and drained. The operation can be conducted with greatest safety under local anaesthesia.

Bacteraemia and  Septicemia

Bacteraemia and septicaemia means the organisms are present in the blood. Clinical features are those of severe infection and shock: , Pyrexia is intermittent , Rigors ,  Jaundice is due to liver damage,  Acute renal failure may occur , Peripheral circulatory failure,  lntravascular coagulation indicates a fatal outcome

 causative focus found and treated surgically .g., Appendicetomy in perforated appendix

2. Blood culture taken

3. Broad spectrum antibiotic is given

4. Blood transfusion is given.

5. Injection hydrocortisone is given.

Pyaemia

Pyaemia is due to infected emboli circulating in blood stream. Pyaemia is characterized by: -

1. Rigors

2. Intermittent fever

3. Formation of abscess in vital organs like heart or brain.

Treatment

1. Is to prevent emboli reaching the blood stream

2. Broad spectrum antibiotic is given.

3. Abscess are incised and drained

If not treated portal pyaemia with multiple abscesses in liver occur, which is a dangerous condition.

Acute Abscess :  An abscess a collection of pus.

Bacteria which cause pus formation is called pyogenic organisms. Bacteria reach the infected area by:

1. Direct route: eg. Penetrating wound

Local extension: From adjacent focus of infection

2 Lymphatics

4. Blood stream

Pyogenic membrane surrounds the abscess and is infiltration with (leukocytes and bacteria.

Pus: Pus contains dead leukocytes and bacteria. It reaches the surface of the body or is discharged into a hollow viscous.

Symptoms: patient feels ill., Throbbing pain is characteristic of suppuration. Pain becomes more severe in the dependent position. E.g. infected finger,

Classical signs

Temperature is elevated , Rigors, inflammation

Fluctuation: Present in the later stages, and reveals the presence of pus. Prevention

1. An abscess can sometimes be aborted by antibiotics in the early stage.,. Rest,  Elevation of the affected part.

Treatment

Is incision and drainage of abscess

Hilton’s method of opening an abscess:

It is used where important anatomical structures like the blood vessels and nerves are preesnt, as in the neck, axilla and groin. The skin and superficial fascia is incised. A sinus forceps is thrust into the abscess  cavity. The blades are opened and the pus is drained. A gloved finger is introduced and loculi are broken. A ribbon gauze is lightly packed and antibiotics are given. This is done under surface anaesthesia i.e., ethyl chloride spray.

Antibioma

 If antibiotic is given the pus in the abscess frequently becomes sterile and a large brawny edematous swelling remains which takes many weeks to resolve.

Treatment: explore the mass with a wide-bore aspirating needle

 Most antibiornas are due to late, inadequate, and ineffective antibiotics.

CANCRUM ORIS

Is an infective gangrene of cheek and lip.

may occur as a complication of kala azar, enteric fever and  children with poor oral hygiene.

The lesion starts as an acute inflammatory patch on oral mucosa which is seen ulcerated.

The affected part of the cheek or the lip gradually becomes gangrenous.

Focal vascular thrombosis and sepesis occur.

When slough separates, a part of the cheek or lip sloughs out to form a buccal fistula with ugly deformity. The adjacent jaw may be infected too.

Various organisms are found - specially Fusiform bacillus and_Borrellia vincenti.

The foetid odour, gangrenous patch of cheek or lip, purulent discharge from the mouth, fever and toxaemia are the characteristic features. The patient is unable to open the mouth properly.

Treatment

1. Antibiotics, multivitamins and repeated mouth washes

2 Neostibamine in kala-azar. Sequestrectomy in chronic osteomyelitis of the mandible.

4. Plastic reconstruction of the lip or cheek for unsightly deformity undertaken.

CARBUNCLE

Is an infective gangrene of the subcutaneous tissue. It is due to staphylococcal aureus infection. It is uncommon before the age of 40. Males are the usual sufferers. Diabetes may be present. It often occurs on the nape of the neck.

Clinical features

Subcutaneous tissue becomes painful and indurated. Ove skin is red. Unless treated promptly, extension will occur and late softening. The skin gives way and thick pus and slough are discharged.

Usually, there is one central large slough, surrounded by smaller areas of necrosis. Infection extends widely and fresh openings appear

Treatment

1. Many carbuncles are aborted, if penicillin is used adequately in the early stage.

2. Local treatment consists of hygroscopic dressings being given ie. magsulph-glycerin dressing Later the carbuncle is excised with a cruciate incision.

3. If the gap is large and when the granulation tissue comes to the surface, skin grafting is done.

Cricothyroidotomy

Cricothyroidotomy is a surgical procedure that involves making an incision through the skin over the cricothyroid membrane, which is located between the thyroid and cricoid cartilages in the neck. This procedure is performed to establish an emergency airway in situations where intubation is not possible or has failed, such as in cases of severe airway obstruction, facial trauma, or anaphylaxis.

Indications

Cricothyroidotomy is indicated in the following situations:

  • Acute Airway Obstruction: When there is a complete blockage of the upper airway due to swelling, foreign body, or trauma.
  • Failed Intubation: When attempts to secure an airway via endotracheal intubation have been unsuccessful.
  • Facial or Neck Trauma: In cases where traditional airway management is compromised due to injury.
  • Severe Anaphylaxis: When rapid airway access is needed and other methods are not feasible.

Anatomy

  • Cricothyroid Membrane: The membrane lies between the thyroid and cricoid cartilages and is a key landmark for the procedure.
  • Surrounding Structures: Important structures in the vicinity include the carotid arteries, jugular veins, and the recurrent laryngeal nerve, which must be avoided during the procedure.

Procedure

Preparation

  1. Positioning: The patient should be in a supine position with the neck extended to improve access to the cricothyroid membrane.
  2. Sterilization: The area should be cleaned and sterilized to reduce the risk of infection.
  3. Anesthesia: Local anesthesia may be administered, but in emergency situations, this step may be skipped.

Steps

  1. Identify the Cricothyroid Membrane: Palpate the thyroid and cricoid cartilages to locate the membrane, which is typically located about 1-2 cm below the thyroid notch.
  2. Make the Incision: Using a scalpel, make a vertical incision through the skin over the cricothyroid membrane, approximately 2-3 cm in length.
  3. Incise the Membrane: Carefully incise the cricothyroid membrane horizontally to create an opening into the airway.
  4. Insert the Airway Device:
    • A tracheostomy tube or a large-bore cannula (e.g., a 14-gauge catheter) is inserted into the opening to establish an airway.
    • Ensure that the device is positioned correctly to allow for ventilation.
  5. Secure the Airway: If using a tracheostomy tube, secure it in place to prevent dislodgment.

Post-Procedure Care

  • Ventilation: Connect the airway device to a bag-valve-mask (BVM) or ventilator to provide oxygenation and ventilation.
  • Monitoring: Continuously monitor the patient for signs of respiratory distress, oxygen saturation, and overall stability.
  • Consider Further Intervention: Plan for definitive airway management, such as a formal tracheostomy or endotracheal intubation, once the immediate crisis is resolved.

Complications

While cricothyroidotomy is a life-saving procedure, it can be associated with several complications, including:

  • Infection: Risk of infection at the incision site.
  • Hemorrhage: Potential bleeding from surrounding vessels.
  • Damage to Surrounding Structures: Injury to the recurrent laryngeal nerve, carotid arteries, or jugular veins.
  • Subcutaneous Emphysema: Air escaping into the subcutaneous tissue.
  • Tracheal Injury: If the incision is not made correctly, there is a risk of damaging the trachea.

Suture Materials

Sutures are essential in surgical procedures for wound closure and tissue approximation. Various types of sutures are available, each with unique properties, advantages, and applications. Below is a summary of some commonly used suture materials, including chromic catgut, polypropylene, polyglycolic acid, and polyamide (nylon).

1. Chromic Catgut

  • Description:

    • Chromic catgut is a natural absorbable suture made from collagen derived from the submucosa of sheep intestines or the serosa of beef cattle intestines. It is over 99% pure collagen.
  • Absorption Process:

    • The absorption of chromic catgut occurs through enzymatic digestion by proteolytic enzymes, which are derived from lysozymes contained within polymorphonuclear leukocytes (polymorphs) and macrophages.
  • Absorption Rate:

    • The absorption rate depends on the size of the suture and whether it is plain or chromicized. Typically, absorption is completed within 60-120 days.
  • Applications:

    • Commonly used in soft tissue approximation and ligation, particularly in areas where a temporary support is needed.

2. Polypropylene (Proline)

  • Description:

    • Polypropylene is a synthetic monofilament suture made from a purified and dyed polymer.
  • Properties:

    • It has an extremely high tensile strength, which it retains indefinitely after implantation. Polypropylene is non-biodegradable, meaning it does not break down in the body.
  • Applications:

    • Ideal for use in situations where long-term support is required, such as in vascular surgery, hernia repairs, and other procedures where permanent sutures are beneficial.

3. Polyglycolic Acid

  • Description:

    • Polyglycolic acid is a synthetic absorbable suture formed by linking glycolic acid monomers to create a polymer.
  • Properties:

    • It is known for its predictable absorption rate and is commonly used in various surgical applications.
  • Applications:

    • Frequently used in soft tissue approximation, including in gastrointestinal and gynecological surgeries, where absorbable sutures are preferred.

4. Polyamide (Nylon)

  • Description:

    • Polyamide, commonly known as nylon, is a synthetic non-absorbable suture that is chemically extruded and generally available in monofilament form.
  • Properties:

    • Nylon sutures have a low coefficient of friction, making passage through tissue easy. They also elicit minimal tissue reaction.
  • Applications:

    • Used in a variety of surgical procedures, including skin closure, where a strong, durable suture is required.

Tracheostomy

Tracheostomy is a surgical procedure that involves creating an opening in the trachea (windpipe) to facilitate breathing. This procedure is typically performed when there is a need for prolonged airway access, especially in cases where the upper airway is obstructed or compromised. The incision is usually made between the 2nd and 4th tracheal rings, as entry through the 1st ring can lead to complications such as tracheal stenosis.

Indications

Tracheostomy may be indicated in various clinical scenarios, including:

  1. Acute Upper Airway Obstruction: Conditions such as severe allergic reactions, infections (e.g., epiglottitis), or trauma that obstruct the airway.
  2. Major Surgery: Procedures involving the mouth, pharynx, or larynx that may compromise the airway.
  3. Prolonged Mechanical Ventilation: Patients requiring artificial ventilation for an extended period, such as those with respiratory failure.
  4. Unconscious Patients: Situations involving head injuries, tetanus, or bulbar poliomyelitis where airway protection is necessary.

Procedure

Technique

  • Incision: A horizontal incision is made in the skin over the trachea, typically between the 2nd and 4th tracheal rings.
  • Dissection: The subcutaneous tissue and muscles are dissected to expose the trachea.
  • Tracheal Entry: An incision is made in the trachea, and a tracheostomy tube is inserted to maintain the airway.

Complications of Tracheostomy

Tracheostomy can be associated with several complications, which can be categorized into intraoperative, early postoperative, and late postoperative complications.

1. Intraoperative Complications

  • Hemorrhage: Bleeding can occur during the procedure, particularly if major blood vessels are inadvertently injured.
  • Injury to Paratracheal Structures:
    • Carotid Artery: Injury can lead to significant hemorrhage and potential airway compromise.
    • Recurrent Laryngeal Nerve: Damage can result in vocal cord paralysis and hoarseness.
    • Esophagus: Injury can lead to tracheoesophageal fistula formation.
    • Trachea: Improper technique can cause tracheal injury.

2. Early Postoperative Complications

  • Apnea: Temporary cessation of breathing may occur, especially in patients with pre-existing respiratory issues.
  • Hemorrhage: Postoperative bleeding can occur, requiring surgical intervention.
  • Subcutaneous Emphysema: Air can escape into the subcutaneous tissue, leading to swelling and discomfort.
  • Pneumomediastinum and Pneumothorax: Air can enter the mediastinum or pleural space, leading to respiratory distress.
  • Infection: Risk of infection at the incision site or within the tracheostomy tube.

3. Late Postoperative Complications

  • Difficult Decannulation: Challenges in removing the tracheostomy tube due to airway swelling or other factors.
  • Tracheocutaneous Fistula: An abnormal connection between the trachea and the skin, which may require surgical repair.
  • Tracheoesophageal Fistula: An abnormal connection between the trachea and esophagus, leading to aspiration and feeding difficulties.
  • Tracheoinnominate Arterial Fistula: A rare but life-threatening complication where the trachea erodes into the innominate artery, resulting in severe hemorrhage.
  • Tracheal Stenosis: Narrowing of the trachea due to scar tissue formation, which can lead to breathing difficulties.

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