Simple interrupted stitch

Simple Interrupted Stitch is a fundamental technique in surgery and wound closure methods. It is widely used across various medical fields for its versatility and simplicity. This technique involves the placement of individual stitches, or sutures, across a wound or incision to facilitate healing and minimize scarring. Each stitch is tied and cut separately, allowing for precise tension control and easy removal of individual sutures without affecting the integrity of the entire wound closure.

Indications

The simple interrupted stitch is indicated for the closure of clean, low-tension wounds across almost all parts of the body. It is particularly useful in areas where skin edges must be aligned precisely to ensure minimal scarring and optimal functional and cosmetic outcomes. This technique is also preferred in situations where the wound might be subjected to increased tension or stress, as individual sutures can be removed without compromising the closure of the entire wound.

Technique

The technique for placing a simple interrupted stitch involves several steps:

1. The needle is inserted into the skin perpendicular to the wound edge, approximately 2-4 mm from the wound margin.
2. It is then advanced across the wound, emerging on the opposite side at an equal distance from the wound edge.
3. The suture material is pulled through until there is an equal length of suture on both sides of the wound.
4. A surgeon's knot is then tied by wrapping the suture around the needle holder twice for the first throw, followed by one or two additional throws to secure the knot.
5. Each suture is cut leaving short tails, usually about 3-4 mm in length.

Advantages

The simple interrupted stitch offers several advantages:

• It allows for precise approximation of wound edges, which is critical for aesthetic and functional outcomes.
• Individual tension adjustment is possible, which can reduce the risk of tissue necrosis and scarring.
• If one suture fails or becomes infected, it can be removed without compromising the entire wound closure.
• It is a versatile technique that can be used in many different types of tissues and surgical situations.

Disadvantages

Despite its advantages, there are some drawbacks to the simple interrupted stitch:

• It is more time-consuming than continuous suturing techniques, as each stitch is tied and cut separately.
• There is a potential for increased scarring due to the multiple knot placements along the wound.
• It may not be suitable for wounds under significant tension or for patients who cannot return for suture removal.

Materials

A variety of suture materials can be used for simple interrupted stitches, including absorbable sutures for internal tissues that heal quickly and non-absorbable sutures for skin closure. The choice of suture material and needle type depends on the tissue being sutured and the surgeon's preference.

Complications

Complications associated with the simple interrupted stitch are rare but can include infection, suture reaction (an inflammatory response to the suture material), and wound dehiscence (reopening of the wound). Proper technique and sterile conditions can minimize these risks.

Conclusion

The simple interrupted stitch is a cornerstone of surgical wound closure, offering flexibility, precision, and reliability. Its simplicity and effectiveness make it a preferred choice for many surgeons across a wide range of medical specialties.

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  Suture before and after
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  Simple interrupted suture