A step-by-step approach to a frozen pelvis

Objective: To demonstrate a step-by-step approach for restoration of pelvic anatomy in frozen pelvis using a systematic approach to make the steps reproducible, safe, and time efficient. Design: Video presentation. Setting: Academic medical center. Patient(s): A 30-year-old nulliparous woman with lifelong dysmenorrhea and 4 years of infertility who presented for the surgical man-agement of stage IV endometriosis. Intervention(s): An abdominopelvic survey was first in a systematic fashion to assess the extent of adhesive disease and evalaute for normal anatomy. Dissection was then started on the patient's left side to mobilize the sigmoid colon at the pelvic brim. Subsequently, the ureters were identified and bilateral ureterolysis was performed as the retroperitoneal spaces were explored. Once the ureters were safely dissected, the adnexa were mobilized bilaterally. Attention was then turned to the dissection of the medial pararectal spaces (Okabayashi's space) before the dissection of the rectovaginal space. With the restoration of anatomy, the remaining planned surgery was completed. Main Outcomes Measure(s): Restoration of pelvic anatomy, excision of endometriosis, and resolution of symptoms.Result(s): The patient had an uncomplicated procedure with complete excision of endometriosis and an estimated blood loss of 45 mL. She was discharged on the same day and had an uneventful postoperative period. At her follow-up appointment, she had resolution of symptoms and was initiated on medical hormone suppression therapy until ready for in vitro fertilization. Conclusion(s): A frozen pelvis is a condition in which the pelvic organs are distorted and tethered to each other as a result of adhesive processes. This can obscure normal anatomical landmarks and surgical planes making dissection extremely difficult, thus increasing the risk of interoperative and postoperative complications. Although an uncommon surgical condition, it is not rare to come across in clin-ical practices, thus creating a challenge to reproductive surgeons as it is commonly seen with endometriosis-associated infertility. It is important for surgeons to be able to recognize the relevant anatomy and have the knowledge to open proper pelvic avascular spaces in the pelvis to mitigate these risks. Following this video's step-by-step approach can help restore pelvic anatomy for planned surgical procedures. (Fertil Steril (R) 2023;119:153-4. (C)2022 by American Society for Reproductive Medicine.)