science

Single-port laparoscopy

Single-port laparoscopy is a science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Single-port laparoscopy rather than just read about it. In short: Single-port laparoscopy (SPL) is a recently developed technique in laparoscopic surgery. It is a minimally invasive surgical procedure in which the surgeon operates almost exclusively through a single entry point, typically the patient's navel.

Key takeaways

Single-port laparoscopy belongs to science; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Single-port laparoscopy to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Single-port laparoscopy from memory before moving on to harder problems.

Reference excerpt

Single-port laparoscopy (SPL) is a recently developed technique in laparoscopic surgery. It is a minimally invasive surgical procedure in which the surgeon operates almost exclusively through a single entry point, typically the patient's navel. Unlike a traditional multi-port laparoscopic approach, SPL leaves only a single small scar.

Technique, equipment and training SPL is accomplished through a single 20 mm incision in the navel (umbilicus or belly button), or through only an 11 mm incision in the navel, minimizing the scarring and incisional pain associated with the multiple points of entry used during traditional laparoscopic surgery. Specialized equipment for SPL surgery falls into two broad categories; access ports and hand instruments. There are a number of different access ports, including GelPOINT system from Applied Medical, the SILS device from Covidien, the TriPort+, TriPort15 and QuadPort+ a from Advanced Surgical Concepts and the Uni-X from Pnavel. Hand instruments come in three configurations - standard, articulating, and pre-bent rigid. Standard hand instruments are rigid in design and were developed over the last 30 years for use in laparoscopy. Articulation is designed to overcome one of the challenges inherent in SPL, decreased triangulation of instrument. A number of factors influence a surgeon's decision to use standard or articulating hand instruments, including which access port they use, their own surgical skills and cost as articulating instruments are significantly more expensive than standard instruments. SPL is enhanced by the use of specialized medical devices such as the SILS Multiple Instrument Access Port manufactured by Covidien and Laparo-Angle Articulating Instruments made by Cambridge Endoscopic Devices, Inc. The flexible port that can be fitted through a small incision in the navel to allow surgeons to use up to three laparoscopic devices simultaneously. Certain articulating instruments can be inserted through such specialized ports, providing surgeons with maneuverability and access to the target tissue from a single access point. However single port laparoscopic appendicectomy has also been performed using a single standard 10 mm Y-shaped operating telescope having a 5 mm instruments channel also. Although awareness of single-port surgery is high amongst surgeons, the use of specialised instruments through such limited access requires considerable skill and training. This operative training and experience is currently limited and some negative perceptions regarding increased operating time and complications with this type of surgery remain. One recent study suggests future uptake relies strongly on the availability of evidence, training, instrumentation and reduced costs.

Applications The SPL technique has been used to perform many types of surgery, including adjustable gastric banding, appendectomy, cholecystectomy, colectomy, hernia repair, hysterectomy, sleeve gastrectomy, nephrectomy, and sacrocolpopexy. SPL has been employed by surgeons at Cleveland Clinic for clinical trials and in the Geneva University Hospital in Switzerland. Although a number of single-incision techniques use specialized instrumentation, most SPL operations in the United States and Europe have used standard instrumentation. The TriPort+ can be inserted with its introducer through a 15 mm incision at the umbilicus. This device allows four instruments to be used simultaneously. During LESS cholecystectomy a fourth instrument becomes essential to gain critical view. Up until now surgeons have been inventive in how to retract the infundibulum; sutures and other novel means of retraction have all been reported. The instrument's channel allows for a fixed curved infundibular grasper to be added; this helps replicate the methodology currently being practised in traditional four-port laparoscopic cholecystectomy.

Risks and benefits When compared with traditional multi-port laparoscopic techniques, benefits of SPL techniques include less postoperative pain, less blood loss, faster recovery time, and better cosmetic results. Despite the potential advantages of SPL techniques, there may also be complications. Potential complications include significant postoperative pain, injury to organs, bleeding, infection, incisional hernia, intestinal adhesions and scarring.

History The first documented procedures of significance occurred in the late 1990s. This approach has recently seen more publicity and excitement as surgeons continue to develop techniques to evolve surgery to less invasive approaches. The first described SPL procedure was a gallbladder removal in 1997. Since that time, thousands of SPL procedures have been successfully performed in the United States, from general surgery to urologic, gynecologic and bariatric surgery applications.

See also Natural orifice translumenal endoscopic surgery

References

Ross S, Rosemurgy A, Albrink M, Choung E, Dapri G, Gallagher S, Hernandez J, Horgan S, Kelley W, Kia M, Marks J, Martinez J, Mintz Y, Oleynikov D, Pryor A, Rattner D, Rivas H, Roberts K, Rubach E, Schwaitzberg S, Swanstrom L, Sweeney J, Wilson E, Zemon H, Zundel N (Oct 2012). "Consensus statement of the consortium for LESS cholecystectomy". Surg Endosc. 26 (10): 2711–6. doi:10.1007/s00464-012-2478-y. PMID 22936433. S2CID 35959513.

Illustrations

Worked examples

Example 1 — a first encounter with Single-port laparoscopy

Start with the simplest possible case. Write down what Single-port laparoscopy claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Single-port laparoscopy before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Single-port laparoscopy ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Single-port laparoscopy

In research: Single-port laparoscopy appears in science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses Single-port laparoscopy in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: Single-port laparoscopy is common in secondary-school and first-year university syllabi. It links to neighbouring topics Endoscopy, Medical treatments, Surgical procedures and techniques, so understanding it makes those chapters shorter.
In everyday life: Look for Single-port laparoscopy outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

Ask Teacher Smith questions about this articleOpens your AI tutor with a question about “Single-port laparoscopy” →

Affiliate

Preply — study more efficiently by working with a personal tutor. 50% off.

How to study Single-port laparoscopy in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Single-port laparoscopy means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain Single-port laparoscopy out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Single-port laparoscopy in simple terms?

Why does Single-port laparoscopy matter?

Because it connects several science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Single-port laparoscopy?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Single-port laparoscopy.