RESUMO
PURPOSE: Vertical sleeve gastrectomy (VSG) evolved in the early 2000s into the standalone weight loss procedure we see today. While numerous studies highlight VSG's durability for weight loss, and improvements co-morbidities such as type 2 diabetes mellitus and cardiovascular disease, patients with gastroesophageal reflux disease (GERD) have been counseled against VSG due to the concern for worsening reflux symptoms. When considering anti-reflux procedures, VSG patients are unable to undergo traditional fundoplication due to lack of gastric cardia redundancy. Magnetic sphincter augmentation lacks long-term safety data and endoscopic approaches have undetermined longitudinal benefits. Until recently, the only option for patients with a history of VSG with medically refractory GERD has been conversion to roux en Y gastric bypass (RNYGB), however, this poses other risks including marginal ulcers, internal hernias, hypoglycemia, dumping syndrome, and nutritional deficiencies. Given the risks associated with conversion to RNYGB, we have adopted the ligamentum teres cardiopexy as an option for patients with intractable GERD following VSG. METHODS: A retrospective chart review was conducted of patients who had prior laparoscopic or robotic VSG and subsequently GERD symptoms refectory to pharmacological management who underwent ligamentum teres cardiopexy between 2017 and 2022. Pre-operative GERD disease burden, intraoperative cardiopexy characteristics, post-operative GERD symptomatology and changes in H2 blocker or PPI requirements were reviewed. RESULTS: Of the study's 60 patients the median age was 50 years old, and 86% were female. All patients had a diagnosis of GERD through pre-operative assessments and were taking antisecretory medication. Of the 36 patients who have completed their one year follow up, 81% of patients had either a decrease in dosage or cessation of the antisecretory medication at one year following ligamentum teres cardiopexy. CONCLUSION: Ligamentum teres cardiopexy is a viable alternative to RNYGB in patients with a prior vertical sleeve gastrectomy with medical refractory GERD.
Assuntos
Diabetes Mellitus Tipo 2 , Derivação Gástrica , Refluxo Gastroesofágico , Laparoscopia , Obesidade Mórbida , Ligamentos Redondos , Humanos , Feminino , Pessoa de Meia-Idade , Masculino , Obesidade Mórbida/cirurgia , Obesidade Mórbida/complicações , Estudos Retrospectivos , Diabetes Mellitus Tipo 2/complicações , Refluxo Gastroesofágico/cirurgia , Refluxo Gastroesofágico/complicações , Derivação Gástrica/métodos , Gastrectomia/efeitos adversos , Gastrectomia/métodos , Ligamentos Redondos/cirurgia , Redução de PesoRESUMO
STUDY OBJECTIVE: Recurrent torsion of otherwise normal adnexa (not involving adnexal cysts) has been reported in young girls and adolescents. Previous ovarian fixation techniques (oophoropexy), such as plication of the utero-ovarian ligament, appear to have limited efficacy in preventing recurrent torsion. A novel technique combining plication of the utero-ovarian ligament and suturing of the ovary to the round ligament has recently been described. In this study, we describe our short-term experience with the combined utero-ovarian and round ligament oophoropexy technique. METHODS: Patients who underwent combined oophoropexy as a primary fixation technique or as a secondary fixation technique (ie, after failure of a previous fixation) due to recurrent torsion of otherwise normal adnexa between January 2020 and December 2022 were included in this retrospective cohort study. Follow-up to assess for further torsion events was conducted by telephone interview. RESULTS: Ten patients underwent combined utero-ovarian and round ligament oophoropexy during the study period. In all cases, at least 2 episodes of torsion of otherwise normal adnexa were surgically diagnosed before oophoropexy (range 2-4). The median patient age at the time of combined oophoropexy was 21.8 years (range 9.1-35.7 years); 3 were premenarchal, and 7 were postmenarchal. After a median follow-up of 19.1 months (range 3.0-29.3 months), only 1 case of recurrent torsion occurred. CONCLUSION: Combined utero-ovarian and round ligament oophoropexy is novel oophoropexy procedure that may reduce the risk of recurrent torsion. However, longer follow-up is needed to determine its efficacy.
Assuntos
Doenças dos Anexos , Laparoscopia , Doenças Ovarianas , Ligamentos Redondos , Feminino , Adolescente , Humanos , Criança , Adulto Jovem , Adulto , Ovário/cirurgia , Estudos Retrospectivos , Anormalidade Torcional/cirurgia , Laparoscopia/métodos , Recidiva , Doenças dos Anexos/cirurgia , Doenças Ovarianas/cirurgiaRESUMO
PURPOSE: Late post-pancreatectomy hemorrhage (PPH) represents the most severe complication after pancreatic surgery. We have measured the efficacy of major vessels "flooring" with falciform/round ligament to prevent life-threatening grade C late PPH after pancreaticoduodenectomy (PD) and distal pancreatectomy (DP). METHODS: All consecutive patients who underwent PD and DP between 2013 and 2021 were retrospectively reviewed on a prospectively maintained database. The cohort was divided in two groups: "flooring" vs. "no flooring" method group. The "no flooring" group had omental flap interposition. Patient characteristics and operative and postoperative data including clinically relevant postoperative pancreatic fistula (CR-POPF), late PPH (grade B and C), and 90-day mortality were compared between the two groups. RESULTS: Two hundred and forty patients underwent pancreatic resections, including 143 PD and 97 DP. The "flooring" method was performed in 61 patients (39 PD and 22 DP). No difference was found between the two groups concerning severe morbidity, CR-POPF, delayed PPH, and mortality rate. The rate of patients requiring postoperative intensive care unit was lower in the "flooring" than in the "no flooring" method group (11.5% vs. 25.1%, p = 0.030). Among patients with grade B/C late PPH (n = 30), the rate of life-threatening grade C late PPH was lower in the "flooring" than in the "no flooring" method group (28.6% (n = 2/7) vs. 82.6% (n = 19/24), p = 0.014). Risk factor analysis showed that the "flooring" method was the only protective factor against grade C late PPH occurrence (p = 0.013). CONCLUSION: The "flooring" method using the falciform/round ligament should be considered during pancreatectomies to reduce the occurrence of life-threatening grade C late PPH.
Assuntos
Pancreatectomia , Ligamentos Redondos , Feminino , Humanos , Pancreatectomia/métodos , Estudos Retrospectivos , Hemorragia/prevenção & controle , Pancreaticoduodenectomia/efeitos adversos , Pancreaticoduodenectomia/métodos , Complicações Pós-Operatórias/prevenção & controle , Fístula Pancreática/etiologia , Fístula Pancreática/prevenção & controle , Fístula Pancreática/cirurgia , Fatores de Risco , Hemorragia Pós-Operatória/etiologia , Hemorragia Pós-Operatória/prevenção & controle , Hemorragia Pós-Operatória/epidemiologiaRESUMO
PURPOSE: The processing of the round ligament of uterus in laparoscopic transabdominal preperitoneal (TAPP) repair of inguinal hernia in women has contended. This study aimed to explore whether there is any difference in the surgical outcome and postoperative complications between the two processing modalities, preservation, and transection of the round ligament of uterus, in adult female inguinal hernia patients undergoing TAPP. METHODS: Retrospective analysis of 84 female patients (117 sides) who underwent TAPP in XXX Hospital from July 2013 to August 2022. Patient characteristics and technical details of the surgical procedure were collected and divided into two groups according to whether the round ligament of uterus was severed intraoperatively or not. There were 52 cases (77 sides) in the group with preservation of the round ligament of uterus and 32 cases (40 sides) in the group with transection of the round ligament of uterus, comparing the general condition, surgical condition, and the occurrence of postoperative related complications between the 2 groups. RESULTS: The operative time for unilateral primary inguinal hernia was (129.2 ± 35.1) and (89.5 ± 42.6) minutes in the preservation and transection groups, respectively. There were no statistical differences between the two groups in terms of age, length of hospital stay, ASA, BMI, history of lower abdominal surgery, type and side of hernia, intraoperative bleeding, and time to surgery for primary bilateral hernia (P > 0.05). In addition, there was likewise no statistical difference in the occurrence of postoperative Clavien-Dindo classification, VAS, seroma, mesh infection, labia majora edema, chronic pain or abnormal sensation in the inguinal region, and hernia recurrence in the two groups as well (P > 0.05). CONCLUSION: There is no evidence that the transection of the round ligament of the uterus during TAPP has an impact on postoperative complications in patients. However, given the important role of the uterine round ligament in the surgical management of patients with uterine prolapse and the high incidence of uterine prolapse in older women, hernia surgeons should also be aware of the need to protect the round ligament of uterus in older women.
Assuntos
Hérnia Inguinal , Laparoscopia , Ligamento Redondo do Útero , Ligamentos Redondos , Prolapso Uterino , Adulto , Humanos , Feminino , Idoso , Estudos Retrospectivos , Hérnia Inguinal/complicações , Prolapso Uterino/complicações , Prolapso Uterino/cirurgia , Herniorrafia/efeitos adversos , Herniorrafia/métodos , Laparoscopia/efeitos adversos , Laparoscopia/métodos , Complicações Pós-Operatórias/epidemiologia , Ligamentos Redondos/cirurgia , Telas Cirúrgicas/efeitos adversos , Útero/cirurgia , Resultado do Tratamento , RecidivaRESUMO
Background: Ligamentum teres (LT) has traditionally been considered a vestigial or redundant structure in humans; however, based on new studies and the evolution of hip arthroscopy, the LT injury has been viewed as a source of hip pain. Therefore, LT reconstruction can be beneficial in some cases. Rabbits have been frequently used as a model for cranial cruciate ligament reconstruction but few studies are available for ligamentum teres reconstruction. Objective: To evaluate the semitendinosus tendon to replace ligamentum teres with the toggle technique, using rabbits as an experimental model. Methods: Twenty-six female Norfolk rabbits with approximately 3 months of age were divided into two equal groups after excision of ligamentum teres (LT) from the right hip joint: G1-no reconstruction of LT and capsulorrhaphy; G2-double-bundle reconstruction of the LT using semitendinosus tendon autograft. In both groups, the LT was removed from the right hip joint. In G2 the autograft was harvested from the left hind limb of the same rabbit. The rabbits were evaluated clinically at different time intervals; before surgery (M1), 48 h (M2), 15 days (M3), 30 days (M4) and 90 days (M5) after surgery. Results: The rabbits supported their limbs on the ground in both the groups. As complications of the procedure, four hip joints showed subluxations in the radiographic evaluation of G1; three at M4 and one at M5. In G2; two luxations of hip joints at M3 and one subluxation at M4 were seen. On ultrasound, irregular articular surface was seen in 30.8% of the rabbits that had subluxation of hip joints. Gross evaluation identified tendon graft integrity in 76.92% of the rabbits. Histological analysis revealed graft adhesion to the bone in the early phase comprised of sharpey-like collagen fibers. Conclusion: The double-bundle reconstruction of the LT using autologous semitendinosus tendon associated with the toggle rod shows an early phase of tendon graft ligamentization at 90 days post-operatively in young rabbits, but biomechanical bias suffered by the tendon during gait must be considered.
Assuntos
Tendões dos Músculos Isquiotibiais , Luxações Articulares , Ligamentos Redondos , Humanos , Animais , Coelhos , Feminino , Ligamento Cruzado Anterior/cirurgia , Articulação do Quadril/diagnóstico por imagem , Artroscopia/métodosRESUMO
Esophageal cancer patients require enteral nutritional support after esophagectomy. Conventional feeding enterostomy to the jejunum (FJ) is occasionally associated with small bowel obstruction because the jejunum is fixed to the abdominal wall. Feeding through an enteral feeding tube inserted through the reconstructed gastric tube (FG) or the duodenum (FD) using the round ligament of the liver have been suggested as alternatives. This meta-analysis aimed to compare short-term outcomes between FG/FD and FJ. Studies published prior to May 2022 that compared FG or FD with FJ in cancer patients who underwent esophagectomy were identified via electronic literature search. Meta-analysis was performed using the Mantel-Haenszel random-effects model to calculate Odds Ratios (ORs) with 95% confidence intervals (CIs). Five studies met inclusion criteria to yield a total of 1687 patients. Compared with the FJ group, the odds of small bowel obstruction (OR 0.09; 95% CI, 0.02-0.33), catheter site infection (OR 0.18; 95% CI, 0.06-0.51) and anastomotic leakage (OR 0.53; 95% CI, 0.32-0.89) were lower for the FG/FD group. Odds of pneumonia, recurrent laryngeal nerve palsy, chylothorax and hospital mortality did not significantly differ between the groups. The length of hospital stay was shorter for the FG/FD group (median difference, -10.83; 95% CI, -18.55 to -3.11). FG and FD using the round ligament of the liver were associated with lower odds of small bowel obstruction, catheter site infection and anastomotic leakage than FJ in esophageal cancer patients who underwent esophagectomy.
Assuntos
Neoplasias Esofágicas , Ligamentos Redondos , Feminino , Humanos , Nutrição Enteral , Gastrostomia , Jejunostomia/efeitos adversos , Esofagectomia/efeitos adversos , Fístula Anastomótica/cirurgia , Duodenostomia , Complicações Pós-Operatórias/etiologia , Complicações Pós-Operatórias/cirurgia , Fígado/cirurgia , Ligamentos Redondos/cirurgia , Neoplasias Esofágicas/cirurgiaRESUMO
Roux-en-Y gastric bypass (RYGB) is considered the gold standard procedure in patients with obesity and gastroesophageal reflux (GERD), but in patients with preoperative hiatal hernia (HH) or GERD, who are unfit for RYGB, there are no clear guidelines. Ligamentum teres cardiopexy (LTC) has been proposed as an effective alternative. The purpose of this study was to analyze medium-term results of LTC procedure associated with laparoscopic sleeve gastrectomy (LSG) in patients with GERD or HH, according to the absence of pathologic acid reflux in esophageal 24 h pH monitoring test, symptom release, or PPI reduction. Five patients underwent LSG-LTC between March 2018 and October 2019. In one patient, the effectiveness of LTC as an anti-reflux procedure could not be assessed because of conversion to RYGB was required. After a follow-up period of 30 [24-42] months and excessive BMI loss of 62.74 ± 18.18%, GERD recurrence was observed in 75% of patients. The study was discontinued due to unsatisfactory preliminary results with LTC. Our results suggest that LTC might not prevent GERD after LSG in patients with preoperative GERD or HH.
Assuntos
Derivação Gástrica , Refluxo Gastroesofágico , Hérnia Hiatal , Laparoscopia , Obesidade Mórbida , Ligamentos Redondos , Humanos , Obesidade Mórbida/cirurgia , Refluxo Gastroesofágico/prevenção & controle , Refluxo Gastroesofágico/cirurgia , Refluxo Gastroesofágico/complicações , Hérnia Hiatal/complicações , Derivação Gástrica/métodos , Gastrectomia/métodos , Ligamentos Redondos/cirurgia , Laparoscopia/efeitos adversos , Estudos Retrospectivos , Resultado do TratamentoRESUMO
Right-sided ligamentum teres (RSLT) is a rare congenital anomaly in which the fetal umbilical vein is connected to the right paramedian trunk of the portal vein. An 80-year-old woman underwent curative sigmoidectomy for sigmoid cancer 3 years prior to presentation. After 1 year, small solitary liver metastasis was noted in segment 4. Because the patient experienced recurrence of the same lesion after chemotherapy and radiofrequency ablation, she was referred to our hospital. CT revealed an anomaly of the liver with RSLT, classified as an independent posterior branch type. The tumor in the left paramedian section was located in the right umbilical portion (RUP), and BDTT was advanced to the common bile duct. Because the estimated future remnant liver volume was 35.2%, transileocecal portal vein embolization (PVE) for the portal branches from the RUP increased it to 43.5% in 3 weeks. Left trisectionectomy with extrahepatic bile duct resection and hepaticojejunostomy were performed. The patient was discharged on postoperative day 75. We successfully performed a left trisectionectomy after PVE in a patient with RSLT. Understanding the vascular and biliary anomalies of patients with RSLT is essential. When the future remnant liver is small, PVE can be considered for safe hepatectomy.
Assuntos
Neoplasias do Colo , Embolização Terapêutica , Neoplasias Hepáticas , Ligamentos Redondos , Feminino , Humanos , Idoso de 80 Anos ou mais , Veia Porta , Hepatectomia , Fígado/cirurgia , Fígado/anormalidades , Neoplasias Hepáticas/cirurgia , Neoplasias Hepáticas/secundário , Neoplasias do Colo/cirurgia , Resultado do TratamentoRESUMO
BACKGROUND: Although inguinal hernia repair in female patients is less common than in male patients, it remains a frequent procedure. The decision to divide or preserve the round ligament has largely been left to surgeon preference, but little data exists about its impact on outcomes. This study aimed to describe current practices for round ligament management and identify the impact of division on surgical and patient-reported outcomes. STUDY DESIGN: The 2013 to 2021 Abdominal Core Health Quality Collaborative database was queried for all female patients undergoing inguinal hernia repair with 30-day patient-reported outcome data available. Comparison groups were created based on round ligament management: round ligament division (RLD) or round ligament preservation (RLP). RESULTS: We identified 1365 female patients who underwent open (36.3%), laparoscopic (34.5%), or robotic (28.2%) repair. Most were non-recurrent (93%) and unilateral (82.6%). The round ligament was divided in 868 (63.6%) and preserved in 497 (36.4%) cases. There were no significant differences in overall complications (RLD 7.1%, RLP 5.2%, p = 0.17), reoperation (RLD 0.5%, RLP 0.2%, p = 0.4), or recurrence (RLD 0.1%, RLP 0.4%, p = 0.28). Mean European Registry for Abdominal Wall Hernias quality of life summary scores were not significantly different at 30 days (RLD 27.2, RLP 27.8) or 6 months (RLD 12.8, RLP 17.1). However, a significant difference was found in terms of mean pain-specific scores at 6 months, with lower pain scores in the RLD group (3 vs 4.7, p < 0.01), which persisted on multivariable analysis (p = 0.02). CONCLUSIONS: RLD is a common practice and is not associated with increased complications or recurrence. Although there is some evidence that RLD may result in decreased pain at 6 months, this must be balanced with potential functional complications of division that are not fully studied in this paper.
Assuntos
Hérnia Inguinal , Laparoscopia , Ligamentos Redondos , Feminino , Hérnia Inguinal/cirurgia , Herniorrafia/métodos , Humanos , Masculino , Dor/cirurgia , Qualidade de Vida , Recidiva , Ligamentos Redondos/cirurgiaRESUMO
PURPOSE: Posthepatectomy liver failure (PHLF) remains a leading cause of death after extensive liver resection. Apart from the size and function of the remaining liver remnant, the development of postresection portal hypertension (pHT) plays a crucial role in the development of PHLF. We hypothesize that the umbilical vein in the preserved round ligament (RL) may recanalize in response to new-onset pHT after extended hepatectomy, thus providing a natural portosystemic shunt. METHODS: In this exploratory study, RL was preserved in 10 consecutive patients undergoing major liver resection. Postoperative imaging was pursued to obtain evidence of reopened umbilical vein in the RL. The postoperative course, including the occurrence of PHLF, as well as the rate of procedure-specific complications were recorded. RESULTS: None of the 10 cases presented with an adverse event due to preservation of the RL. In 6 cases, postoperative imaging demonstrated reopening of the umbilical vein with hepatofugal flow in the RL. The rates of procedure-related surgical complications were lower than would be expected in this population; in particular, the rate of occurrence of PHLF as defined by the International Study Group of Liver Surgery (ISGLS) was low. CONCLUSION: Our results support the theoretical concept of portosystemic pressure relief via a preserved umbilical vein after major liver surgery. As preservation of the RL is easily done, we suggest keeping it intact in extended hepatectomy cases and in patients with preexistent pHT.
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Hipertensão Portal , Falência Hepática , Neoplasias Hepáticas , Ligamentos Redondos , Feminino , Hepatectomia/efeitos adversos , Hepatectomia/métodos , Humanos , Hipertensão Portal/etiologia , Hipertensão Portal/cirurgia , Falência Hepática/etiologia , Neoplasias Hepáticas/cirurgia , Complicações Pós-Operatórias/etiologia , Complicações Pós-Operatórias/prevenção & controle , Complicações Pós-Operatórias/cirurgiaRESUMO
AIM: The purpose of this study was to investigate the surgical techniques and clinical feasibility of nonuterine manipulator and enclosed colpotomy to avoid cancer cell spillages in laparoscopic radical trachelectomy (LRT) for patients with early-stage cervical cancer. METHODS: We performed the newly optimized surgical techniques of round ligament suspension and vaginal purse-string suture in LRT in 12 patients with early-stage cervical cancer from May 2019 to October 2020. Surgical information and postoperative results were recorded. RESULTS: All 12 patients successfully underwent LRT with round ligament suspension and vaginal purse-string suture, and no conversion to laparotomy was required. The median operation time was 268.5 min (range 200-320 min), including 5 min of round ligament suspension, and the median blood loss was 20 mL (range 5-50 mL). The median number of pelvic lymph nodes removed was 27 (range 19-35), and median amounts of paracervical tissue was 24 mm (range 21-26 mm) and vaginal tissue was 18 mm (range 16-26 mm). No intraoperative complication or serious postoperative complications were reported. CONCLUSION: Round ligament suspension and vaginal purse-string suture techniques are feasible and effective in LRT. They can replace uterine manipulator and unprotected colpotomy with satisfactory perioperative outcomes.
Assuntos
Laparoscopia , Ligamentos Redondos , Traquelectomia , Neoplasias do Colo do Útero , Feminino , Humanos , Laparoscopia/métodos , Ligamentos Redondos/patologia , Técnicas de Sutura , Suturas , Traquelectomia/métodos , Neoplasias do Colo do Útero/patologia , Neoplasias do Colo do Útero/cirurgiaRESUMO
PURPOSE: The purpose of this study was to establish an international expert consensus on operating room findings that aid in the diagnosis of hip instability. METHODS: An expert panel was convened to build an international consensus on the operating room diagnosis/confirmation of hip instability. Seventeen surgeons who have published or lectured nationally or internationally on the topic of hip instability were invited to participate. Fifteen panel members completed a pre-meeting questionnaire and agreed to participate in a 1-day consensus meeting on May 15, 2021. A review of the literature was performed to identify published intraoperative reference criteria used in the diagnosis of hip instability. Studies were included for discussion if they reported and intraoperative findings associated with hip instability. The evidence for and against each criteria was discussed, followed by an anonymous voting process. For consensus, defined a priori, items were included in the final criteria set if at least 80% of experts agreed. RESULTS: A review of the published literature identified 11 operating room criteria that have been used to facilitate the diagnosis of hip instability. Six additional criteria were proposed by panel members as part of the pre-meeting questionnaire. Consensus agreement was achieved for 8 criteria, namely ease of hip distraction under anesthesia (100.0% agreement), inside-out pattern of chondral damage (100.0% agreement), location of chondral damage on the acetabulum (93.3% agreement), pattern of labral damage (93.3% agreement), anteroinferior labrum chondral damage (86.7% agreement), perifoveal cartilage damage (97.6% agreement), a capsular defect (86.7% agreement), and capsular status (80.0% agreement). Consensus was not achieved for 9 items, namely ligamentum teres tear (66.7% agreement), arthroscopic stability tests (46.7% agreement), persistent distraction after removal of traction (46.7% agreement), findings of examination under anesthesia (46.7% agreement), the femoral head divot sign (40.0% agreement), inferomedial synovitis (26.7% agreement), drive-through sign (26.7% agreement), iliopsoas irritation (26.7% agreement) and ligamentum teres-labral kissing lesion (13.3% agreement). All experts agreed on the final list of 8 criteria items reaching consensus. CONCLUSION: This expert panel identified 8 criteria that can be used in the operating room to help confirm the diagnosis of hip instability. LEVEL OF EVIDENCE: Level V expert opinion.
Assuntos
Salas Cirúrgicas , Ligamentos Redondos , Acetábulo , Artroscopia/métodos , Consenso , HumanosRESUMO
INTRODUCTION: A recent cadaveric study supported that most immature hips are supplied by the artery of ligamentum teres and suggested this medial vascular source may influence the pattern of revascularization in Legg-Calve-Perthes disease (LCPD). The purposes of this study were to characterize the perfusion pattern of the capital femoral epiphysis and determine the role of the artery of ligamentum teres in early revascularization of LCPD. METHODS: Retrospective review of perfusion magnetic resonance imaging (pMRI) from 64 hips in early stage LCPD (Waldenström stage I to IIa) was performed. Two independent graders categorized perfusion pattern based on the presence of perfusion medially (from artery of ligamentum teres) and/or laterally (from the medial femoral circumflex artery) on coronal and sagittal MRI series: type 1-lateral perfusion only, type 2-separate medial and lateral perfusion, or type 3-coalescent medial and lateral perfusion. Lateral pillar classification was obtained for hips that reached mid-fragmentation. RESULTS: We identified 64 patients (75% male) with mean age at diagnosis of 8.5±2.1 years. 36% (23/64) hips underwent pMRI during stage I and 64% (41/64) during stage IIa. pMRI revealed separate and distinct medial and lateral sources of perfusion (type 2) in 50% (32/64) hips. In stage I, the distribution of type 1/2/3 hips was found to be 26%/52%/22%. However, in stage IIa there was a nonsignificant trend toward greater coalescence of the medial and lateral perfusion with a distribution of type 1/2/3 of 7%/49%/44% (P=0.07). There was a nonsignificant trend toward weak negative linear correlation between lower initial perfusion grade and worsened lateral pillar classification at mid-fragmentation (r=-0.25, P=0.05). CONCLUSION: The presence of separate and distinct areas of perfusion of medial and lateral capital femoral epiphysis provides further evidence of the role of the ligamentum teres vessels in revascularization during the early stages of LCPD. The changes in perfusion pattern with disease progression likely reflect that medial femoral circumflex artery and ligamentum teres vessel revascularization occur separately, but ultimately coalesce posteriorly over time. LEVEL OF EVIDENCE: Level II-prognostic study.