9 · Triplet Recognition

GraSP · Robot-assisted radical prostatectomy (RARP)

Each triplet consists of an instrument, an action, and a target. This guideline contains 6 instrument labels, 12 action labels, 18 target labels, and 156 triplets.

Instrument Label Space

Action Label Space

  1. Packaging
  2. Tissue Retraction
  3. Dissection
  4. Aspiration
  5. Coagulation
  6. Needle Grasping
  7. Needle Puncture
  8. Suture Pulling
  9. Knot-tying
  10. Cutting
  11. Clipping
  12. Non-verb

Target Label Space

Note: Superior and inferior in this document refer to the surgical view, not the patient’s anatomical position.

1. Subperitoneal adipose tissue

It may contain lymph nodes. Lymph node-bearing adipose tissue shall be dissected, placed into a retrieval bag, and removed from the body.

This tissue is most abundant when clearing both sides of the prostate and performing bilateral pelvic lymph node dissection.

2. Prostate

The prostate is located inferior to the bladder and anterior to the rectum. Its base is continuous with the bladder neck, while the apex is adjacent to the dorsal venous complex and urethra. Posteriorly, it is separated from the rectum by Denonvilliers' fascia. During surgery, the surrounding tissues and vascular pedicles are dissected before prostate removal.

3. Lateral Prostatic Ligament

The lateral prostatic ligament is a fibrous structure located along the lateral aspect of the prostate. It is closely associated with the prostatic vascular pedicle and neurovascular structures. During prostate dissection, it is carefully exposed and divided. Clipping or coagulation may be used to control bleeding.

4. Seminal vesicle

Connected to the vas deferens, this glandular dilated structure serves as a landmark for identifying Denonvilliers’ fascia.

The suction instrument is inserted in most cases to obtain a better surgical view.

5. Dorsal venous complex

Located at the prostatic apex, the apical tip of the triangular pyramidal prostate, this structure is enveloped by abundant connective tissue and blood vessels. The urethra lies posteriorly, and ligation is performed while avoiding the urethra.

Moderate suture ligation is performed to control bleeding during dissection.

6. Vas deferens

It is continuous with the seminal vesicle, thicker than ordinary blood vessels, and pale in color.

Gentle superior traction on this structure improves visualization for dissection of the Denonvilliers’ fascia and prevents rectal injury.

7. Peritoneum

It is a thin, membranous connective tissue covering the adipose tissue on the abdominal cavity surface.

8. Obturator nerve

Located inferolaterally to the external iliac artery, the obturator nerve is white and clearly visible. It comes into view during dissection of the left and right sides of the prostate and is generally kept untouched.

9. Bladder neck

The bladder neck is located at the inferior outlet of the bladder and is continuous with the proximal urethra. It is separated from the prostate during dissection. After prostate removal, it is preserved or reconstructed as needed. It is then anastomosed to the urethral stump.

It is lifted upward,and the bladder neck is then narrowed with suture to match the urethral caliber.

10. Urethra

The urethra extends from the bladder neck and passes through the prostate. Near the prostatic apex, it lies posterior to the dorsal venous complex. The urethral catheter helps identify it during dissection. After prostate removal, the urethral stump is connected to the bladder neck.

11. Vesicoprostatic space

It lies between the bladder and the prostate. Few clips are used at this stage, prior to the elevation of the vas deferens and seminal vesicles.

12. Rectum

The rectum is located posterior to the prostate and is separated from the prostate by Denonvilliers' fascia. During prostate dissection, this fascial plane is carefully developed to avoid rectal injury.

13. Denonvilliers’ fascia

It lies between the prostate and the rectum and appears whitish. Prostatic lateral ligamentts are present on both sides, and it only becomes exposed after the vas deferens and seminal vesicles are mobilized.

14. Below the pubic symphysis

On the anterior side of the dorsal venous complex, a suture is passed through to improve postoperative urinary continence.

15. External iliac vessels

The collective term for the external iliac artery and external iliac vein is the external iliac vessels. Their surface is covered with abundant adipose tissue, within which diffuse lymphoid tissue is present.

16. Suture

After ligation of the dorsal venous complex, excess suture is cut and removed.

Sutures are used in only a limited number of steps throughout the procedure,and most suture manipulations are confined to the same anatomical region.

17. Urethral Catheter

The urethral catheter serves as a prominent landmark for identifying the urethra in the final stage of dissection.

18. Non-target

Triplets (156 entries)

No.InstrumentActionTarget
1Bipolar ForcepsCoagulationBladder neck
2Bipolar ForcepsCoagulationDenonvilliers’ fascia
3Bipolar ForcepsCoagulationDorsal venous complex
4Bipolar ForcepsCoagulationLateral prostatic ligament
5Bipolar ForcepsCoagulationPeritoneum
6Bipolar ForcepsCoagulationProstate
7Bipolar ForcepsCoagulationSeminal vesicle
8Bipolar ForcepsCoagulationSubperitoneal adipose tissue
9Bipolar ForcepsCoagulationVas deferens
10Bipolar ForcepsCoagulationVesicoprostatic space
11Bipolar ForcepsDissectionDenonvilliers’ fascia
12Bipolar ForcepsDissectionLateral prostatic ligament
13Bipolar ForcepsDissectionPeritoneum
14Bipolar ForcepsDissectionProstate
15Bipolar ForcepsDissectionSeminal vesicle
16Bipolar ForcepsDissectionSubperitoneal adipose tissue
17Bipolar ForcepsDissectionVesicoprostatic space
18Bipolar ForcepsNon-verbNon-target
19Bipolar ForcepsNon-verbObturator nerve
20Bipolar ForcepsPackagingSubperitoneal adipose tissue
21Bipolar ForcepsSuture PullingProstate
22Bipolar ForcepsSuture PullingSuture
23Bipolar ForcepsTissue RetractionBladder neck
24Bipolar ForcepsTissue RetractionDenonvilliers’ fascia
25Bipolar ForcepsTissue RetractionDorsal venous complex
26Bipolar ForcepsTissue RetractionExternal iliac vessels
27Bipolar ForcepsTissue RetractionLateral prostatic ligament
28Bipolar ForcepsTissue RetractionNon-target
29Bipolar ForcepsTissue RetractionObturator nerve
30Bipolar ForcepsTissue RetractionPeritoneum
31Bipolar ForcepsTissue RetractionProstate
32Bipolar ForcepsTissue RetractionRectum
33Bipolar ForcepsTissue RetractionSeminal vesicle
34Bipolar ForcepsTissue RetractionSubperitoneal adipose tissue
35Bipolar ForcepsTissue RetractionSuture
36Bipolar ForcepsTissue RetractionUrethra
37Bipolar ForcepsTissue RetractionVas deferens
38Bipolar ForcepsTissue RetractionVesicoprostatic space
39Clip ApplierClippingLateral prostatic ligament
40Clip ApplierClippingNon-target
41Clip ApplierClippingProstate
42Clip ApplierClippingSubperitoneal adipose tissue
43Clip ApplierClippingSuture
44Clip ApplierClippingVas deferens
45Clip ApplierNon-verbNon-target
46Large Needle DriverNeedle GraspingBladder neck
47Large Needle DriverNeedle GraspingSubperitoneal adipose tissue
48Large Needle DriverNeedle PunctureBladder neck
49Large Needle DriverDissectionDenonvilliers’ fascia
50Large Needle DriverKnot-tyingBladder neck
51Large Needle DriverKnot-tyingDorsal venous complex
52Large Needle DriverNeedle GraspingBelow the pubic symphysis
53Large Needle DriverNeedle GraspingNon-target
54Large Needle DriverNeedle PunctureBelow the pubic symphysis
55Large Needle DriverNeedle PunctureDorsal venous complex
56Large Needle DriverNeedle PunctureExternal iliac vessels
57Large Needle DriverNeedle PunctureNon-target
58Large Needle DriverNeedle PunctureUrethra
59Large Needle DriverNon-verbNon-target
60Large Needle DriverSuture PullingProstate
61Large Needle DriverSuture PullingSuture
62Large Needle DriverTissue RetractionBladder neck
63Large Needle DriverTissue RetractionDorsal venous complex
64Large Needle DriverTissue RetractionExternal iliac vessels
65Large Needle DriverTissue RetractionLateral prostatic ligament
66Large Needle DriverTissue RetractionProstate
67Large Needle DriverTissue RetractionRectum
68Large Needle DriverTissue RetractionSubperitoneal adipose tissue
69Large Needle DriverTissue RetractionSuture
70Large Needle DriverTissue RetractionUrethra
71Monopolar Curved ScissorsDissectionPeritoneum
72Monopolar Curved ScissorsCoagulationDenonvilliers’ fascia
73Monopolar Curved ScissorsCoagulationLateral prostatic ligament
74Monopolar Curved ScissorsCoagulationSeminal vesicle
75Monopolar Curved ScissorsCoagulationVesicoprostatic space
76Monopolar Curved ScissorsCuttingLateral prostatic ligament
77Monopolar Curved ScissorsCuttingSuture
78Monopolar Curved ScissorsCuttingVesicoprostatic space
79Monopolar Curved ScissorsDissectionBladder neck
80Monopolar Curved ScissorsDissectionDenonvilliers’ fascia
81Monopolar Curved ScissorsDissectionDorsal venous complex
82Monopolar Curved ScissorsDissectionExternal iliac vessels
83Monopolar Curved ScissorsDissectionLateral prostatic ligament
84Monopolar Curved ScissorsDissectionProstate
85Monopolar Curved ScissorsDissectionSeminal vesicle
86Monopolar Curved ScissorsDissectionSubperitoneal adipose tissue
87Monopolar Curved ScissorsDissectionUrethra
88Monopolar Curved ScissorsDissectionVas deferens
89Monopolar Curved ScissorsDissectionVesicoprostatic space
90Monopolar Curved ScissorsNeedle PunctureNon-target
91Monopolar Curved ScissorsNon-verbNon-target
92Monopolar Curved ScissorsNon-verbObturator nerve
93Monopolar Curved ScissorsNon-verbProstate
94Monopolar Curved ScissorsNon-verbSeminal vesicle
95Monopolar Curved ScissorsPackagingProstate
96Monopolar Curved ScissorsPackagingSubperitoneal adipose tissue
97Monopolar Curved ScissorsSuture PullingSubperitoneal adipose tissue
98Monopolar Curved ScissorsTissue RetractionBladder neck
99Monopolar Curved ScissorsTissue RetractionDenonvilliers’ fascia
100Monopolar Curved ScissorsTissue RetractionDorsal venous complex
101Monopolar Curved ScissorsTissue RetractionExternal iliac vessels
102Monopolar Curved ScissorsTissue RetractionLateral prostatic ligament
103Monopolar Curved ScissorsTissue RetractionObturator nerve
104Monopolar Curved ScissorsTissue RetractionPeritoneum
105Monopolar Curved ScissorsTissue RetractionProstate
106Monopolar Curved ScissorsTissue RetractionRectum
107Monopolar Curved ScissorsTissue RetractionSeminal vesicle
108Monopolar Curved ScissorsTissue RetractionSubperitoneal adipose tissue
109Monopolar Curved ScissorsTissue RetractionUrethra
110Monopolar Curved ScissorsTissue RetractionVas deferens
111Monopolar Curved ScissorsTissue RetractionVesicoprostatic space
112Prograsp ForcepsDissectionProstate
113Prograsp ForcepsNeedle PunctureDorsal venous complex
114Prograsp ForcepsNeedle PunctureUrethra
115Prograsp ForcepsNon-verbNon-target
116Prograsp ForcepsPackagingProstate
117Prograsp ForcepsPackagingSubperitoneal adipose tissue
118Prograsp ForcepsSuture PullingSuture
119Prograsp ForcepsTissue RetractionBelow the pubic symphysis
120Prograsp ForcepsTissue RetractionBladder neck
121Prograsp ForcepsTissue RetractionDenonvilliers’ fascia
122Prograsp ForcepsTissue RetractionExternal iliac vessels
123Prograsp ForcepsTissue RetractionLateral prostatic ligament
124Prograsp ForcepsTissue RetractionPeritoneum
125Prograsp ForcepsTissue RetractionProstate
126Prograsp ForcepsTissue RetractionSeminal vesicle
127Prograsp ForcepsTissue RetractionSubperitoneal adipose tissue
128Prograsp ForcepsTissue RetractionUrethral Catheter
129Prograsp ForcepsTissue RetractionVas deferens
130Prograsp ForcepsTissue RetractionVesicoprostatic space
131Suction InstrumentAspirationBladder neck
132Suction InstrumentAspirationDenonvilliers’ fascia
133Suction InstrumentAspirationExternal iliac vessels
134Suction InstrumentAspirationLateral prostatic ligament
135Suction InstrumentAspirationNon-target
136Suction InstrumentAspirationPeritoneum
137Suction InstrumentAspirationProstate
138Suction InstrumentAspirationRectum
139Suction InstrumentAspirationSubperitoneal adipose tissue
140Suction InstrumentAspirationUrethra
141Suction InstrumentAspirationVas deferens
142Suction InstrumentAspirationVesicoprostatic space
143Suction InstrumentNon-verbNon-target
144Suction InstrumentNon-verbSubperitoneal adipose tissue
145Suction InstrumentTissue RetractionBladder neck
146Suction InstrumentTissue RetractionDenonvilliers’ fascia
147Suction InstrumentTissue RetractionDorsal venous complex
148Suction InstrumentTissue RetractionExternal iliac vessels
149Suction InstrumentTissue RetractionLateral prostatic ligament
150Suction InstrumentTissue RetractionObturator nerve
151Suction InstrumentTissue RetractionPeritoneum
152Suction InstrumentTissue RetractionProstate
153Suction InstrumentTissue RetractionRectum
154Suction InstrumentTissue RetractionSeminal vesicle
155Suction InstrumentTissue RetractionSubperitoneal adipose tissue
156Suction InstrumentTissue RetractionVas deferens