Incised wounds

Incised wounds

Q. 1 A patient is brought to you with alleged history of assault and on examination there are 2 wounds, one on the lower jaw and one on the shin. He claims that it was caused by a knife that the assailant had with him. On examination the wound appears like an incised wound. Which of the following findings in the wound will be inconsistent with an injury caused by sharp knife?

 A Clean cut edges which are well defined

 B

Spindle shape wound

 C

Bridging nerves and vessels

 D

Regular margins

Q. 1

A patient is brought to you with alleged history of assault and on examination there are 2 wounds, one on the lower jaw and one on the shin. He claims that it was caused by a knife that the assailant had with him. On examination the wound appears like an incised wound. Which of the following findings in the wound will be inconsistent with an injury caused by sharp knife?

 A

Clean cut edges which are well defined

 B

Spindle shape wound

 C

Bridging nerves and vessels

 D

Regular margins

Ans. C

Explanation:

In an incise wound the edges are clean cut and well defined usually with everted margins.
The edges may be inverted in the case of incised wounds on the scrotum. In case of incised wounds bridging tissue is not seen.
Bridging tissue is suggestive of laceration and is caused a part of the body being crushed or stretched beyond the limit of their elasticity.
 
Note: – In areas where skin is close to the bone and subcutaneous tissue is scanty a lacerated wound may look like an incise wound.
 
Ref: The Essentials of Forensic Medicine and Toxicology by Narayana Reddy, Edition 21, Page 156, 157

Q. 2

In deep incised wounds, Langer’s lines determine

 A

Direction

 B

Gaping

 C

Shelving

 D

Healing

Ans. B

Explanation:

B i.e. Gaping


Q. 3

Primary closure of incised wounds must be done within

 A

2 hrs

 B

4 hrs

 C

6 hrs

 D

12 hrs

Ans. C

Explanation:

Ans. is ‘c’ i.e., 6 hrs. 


Q. 4

A clean incised wound heals by –

 A

Primary intention

 B

Secondary intention

 C

Excessive scarring

 D

None of the above

Ans. A

Explanation:

Ans. is ‘a’ i.e., Primary intention 


Q. 5

Incised wounds on genitalia:        

AIIMS 09, 10

 A

Homicidal

 B

Suicidal

 C

Accidental

 D

Self-inflicted

Ans. A

Explanation:

Ans. Homicidal


Q. 6

Difference between incised wound and heat rupture favoring heat rupture are:           

AI 09

 A

Margins well-defined

 B

Small and multiple wounds

 C

Nerves and vessels are visible in floor

 D

Seen only over scalp

Ans. C

Explanation:

Ans. Nerves and vessels are visible in floor


Q. 7

Incised wound which is not a feature ‑

 A

Length is the greatest dimention

 B

Width is more than the thickness of the blade

 C

Margins are inverted

 D

Hesitation cuts are seen in suicidal attempt

Ans. C

Explanation:

Ans. is ‘c’ i.e., Margins are inverted

Margins are everted, clear, and clean cut.


Q. 8

Chop wound is also known as

 A

Slash wounds

 B

Incised looking lacerated wounds

 C

Stab wounds

 D

Slit wounds

Ans. A

Explanation:

Ans. is ‘a’ i.e. Slash wounds

Chop Wounds/ Slash Wounds

They are deep gaping wounds caused by a blow with the sharp cutting edge of a fairly heavy weapon like hatchet, axe, sword, broad heavy knife, chopper, sabre, meat cleaver.

Dimensions of the wound correspond to the cross-section of the penetrating blade.


Q. 9

Characteristic of incised wound are all except ‑

 A

Length of wound not correlated with weapon

 B

Bleeding less than laceration

 C

Hesitation cuts seen

 D

Clean cut edges

Ans. B

Explanation:

Ans. is ‘b’ i.e., Bleeding less than a laceration

  • In incised wounds, length of the wound is longer than depth, bleeding is more as vessels are cut. There are clean-cut edges and hesitation cuts are seen.

Incised wound

  • It is a clean-cut through the tissues (usually, skin and subcutaneous tissue), caused by a sharp-edged object, which is longer than its depth, when the weapon is struck or pressed and drawn across the body part, i.e., there is pressure and friction. Examples of sharp-edged objects are knife, blade, razor, scalpel, sword, chopper etc. The characteristic features of the incised wound are :

  1. Length is the greatest dimension (most important).

  2. Hair, hair bulb, nerve and vessels are cut bleeding is profuse as vessels are cut.

  3. Width of injury is more than the thickness of the blade, due to the gaping of wound. Langer’s line of skin determines gap: gaping is more when the cut is across these lines.

  4. Margins are everted, clear, and clean-cut.

  5. Clean incised wounds heal by primary intention, whereas dirty, infected or large wounds heal by secondary intention, with scar formation.

  6. Hesitation cuts (Tentative cuts or trial cuts) are characteristic features of suicidal attempt.

  7. Incised wounds on the nose, ear and genital are usually homicidal and are inflicted on account of jealousy or revenge in case of adultery, causing disfigurement.


Q. 10

In deep incised wounds, Langer’s lines determine‑

 A Direction

 B Gaping

 C

Shelving

 D

Healing

Ans. B

Explanation:

Ans. is ‘b’ i.e., Gaping

  • Gaping is more when the skin is cut across the Langer’s line.

Incised wound

  • It is a clean cut through the tissues (usually, skin and subcutaneous tissue), caused by sharp-edged object. which is longer than its depts, when the weapon is struck or pressed and drawn across the body part, i.e., there is pressure and friction. examples of sharp edged object are knife, blade, razor, scalpel, sword, chopper etc. The characteristic feature of incised wound are : –
  1. Length is the greatest dimension (most important)
  2. Hair, hair bulb, nerve and vessels are cut —> bleeding is profuse as vessels are cut.
  3. Width of injury is more than the thickness of blade, due to gaping of wound. Langer’s line of skin determines gaping : gaping is more when cut is across these lines
  4. Margins are everted, clear, and clean cut
  5. Clean incised wounds heal by primary intention, whereas dirty, infected or large wounds heal by secondary intention, with scar formation.
  6. Hesitation cuts (Tentative cuts or trial cuts) are characteristic features of suicidal attempt.
  7. Incised wound on nose, ear and genital are usually homicidal and are inflicted on account of jealously or revenge in case of adultery, causing disfiguration


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