scholarly journals Accurate resection of periacetabular tumor and reconstruction with a novel 3D printing individualized prosthesis

10.29007/lrvd ◽  
2018 ◽  
Author(s):  
Zheng Guo ◽  
Hong-Bin Fan ◽  
Jun Fu ◽  
Xiao-Kang Li ◽  
Yu-Lin Hao
Keyword(s):  
3D Printing ◽  
En Bloc Resection ◽  
Bloc Resection ◽  
Prosthesis Loosening ◽  
En Bloc ◽  
Long Term Stability ◽  
The Mean ◽  
One Year

From December 2010 to May 2016, 8 patients with periacetabular tumor (chondrosarcoma 5 cases and GCT 3 cases) were treated by accurate en-bloc resection and precise reconstruction with a novel 3D printing individualized prosthesis.One case suffered dislocation of hip joint and two cases presented deep venous thrombosis. The mean follow-up period was 37.5 months (range, 5-70 months). 6 patients survived free of disease. One patient was subject to local recurrence after one year. One patient died from distal metastasis after three years. No infection, prosthesis loosening and breakage occurred. The MSTS score was 18~27. Our study suggest 3D printing implants might be a promising approach for precision reconstruction and long-term stability.

Leiomyogenic tumor of the spine: surgical treatments and long-term outcomes of 12 consecutive patients

2020 ◽  
Vol 32 (1) ◽  
pp. 89-97
Author(s):  
Shaohui He ◽  
Yuduo Xu ◽  
Jialin Li ◽  
Yue Zhang ◽  
Haifeng Wei ◽  
...  
Keyword(s):  
Prognostic Factors ◽  
En Bloc Resection ◽  
Bloc Resection ◽  
En Bloc ◽  
Ki 67 ◽  
Factors Affecting ◽  
The Mean ◽  
Piecemeal Resection

OBJECTIVELeiomyogenic tumor of the spine is rare with limited published information. Here, the authors report the clinical features and long-term surgical outcomes and investigate the prognostic factors affecting disease-free survival (DFS).METHODSTwelve patients presented to the authors’ institution for surgical treatment from January 2005 to December 2018. The clinical characteristics and outcomes were retrospectively reviewed, and the DFS rate was estimated using the Kaplan-Meier method. The log-rank test was used to identify the potential prognostic factors, with p < 0.05 considered statistically significant.RESULTSThe mean patient age was 49.7 ± 12.9 years (range 22–73 years). Four patients underwent marginal en bloc resection, and 8 patients underwent conventional piecemeal resection. Pathological diagnosis revealed leiomyosarcoma in 9 patients and leiomyoma in 3 patients. Three patients had tumor recurrence at a mean follow-up of 10.4 months (range 7.0–15.0 months), while 4 developed metastases at an average of 13.8 months (range 5.5–21.3 months) postoperatively. During the mean follow-up of 33.7 months (range 9.6–78.5 months), the estimated 1- and 5-year DFS rates were 66.7% and 38.2%, respectively. Albumin loss > 20 g/L after surgery, Ki-67 positivity > 10%, and piecemeal resection were correlated with worse DFS.CONCLUSIONSSurgical management of spinal leiomyogenic tumors is challenging due to the high rate of recurrence and metastases. En bloc resection should be performed in eligible patients. Albumin loss > 20 g/L and the Ki-67 index may be independent factors affecting prognosis.

scholarly journals Long-term follow-up after colorectal endoscopic submucosal dissection in 182 cases

2021 ◽  
Vol 09 (02) ◽  
pp. E258-E262
Author(s):  
Christian Suchy ◽  
Moritz Berger ◽  
Ingo Steinbrück ◽  
Tsuneo Oyama ◽  
Naohisa Yahagi ◽  
...  
Keyword(s):  
Case Series ◽  
En Bloc Resection ◽  
Bloc Resection ◽  
Published Data ◽  
Low Grade ◽  
Recurrence Rates ◽  
En Bloc ◽  
Long Term Follow Up

Abstract Background and study aims We previously reported a case series of our first 182 colorectal endoscopic submucosal dissections (ESDs). In the initial series, 155 ESDs had been technically feasible, with 137 en bloc resections and 97 en bloc resections with free margins (R0). Here, we present long-term follow-up data, with particular emphasis on cases where either en bloc resection was not achieved or en bloc resection resulted in positive margins (R1). Patients and methods Between September 2012 and October 2015, we performed 182 consecutive ESD procedures in 178 patients (median size 41.0 ± 17.4 mm; localization rectum vs. proximal rectum 63 vs. 119). Data on follow-up were obtained from our endoscopy database and from referring physicians. Results Of the initial cohort, 11 patients underwent surgery; follow-up data were available for 141 of the remaining 171 cases (82,5 %) with a median follow-up of 2.43 years (range 0.15–6.53). Recurrent adenoma was observed in 8 patients (n = 2 after margin positive en bloc ESD; n = 6 after fragmented resection). Recurrence rates were lower after en bloc resection, irrespective of involved margins (1.8 vs. 18,2 %; P < 0.01). All recurrences were low-grade adenomas and could be managed endoscopically. Conclusions The rate of recurrence is low after en bloc ESD, in particular if a one-piece resection can be achieved. Recurrence after fragmented resection is comparable to published data on piecemeal mucosal resection.

Therapeutic strategy involving endoscopic resection for cN0 superficial carcinoma of the esophagus.

2011 ◽  
Vol 29 (4_suppl) ◽  
pp. 1-1
Author(s):  
T. Iizuka ◽  
D. Kikuchi ◽  
S. Hoteya
Keyword(s):  
Endoscopic Resection ◽  
En Bloc Resection ◽  
Bloc Resection ◽  
Additional Treatment ◽  
En Bloc ◽  
Carcinoma Of The Esophagus ◽  
Secondary Hemorrhage ◽  
Long Term Follow Up

1 Background: With the progress in endoscopic submucosal dissection (ESD) which enables en bloc resection irrespective of the size of lesion, a therapeutic strategy has become feasible whereby ESD is undertaken first, followed by considering additional treatment based on the results of histologic exploration. In this study, we attempted to clarify the clinical results in patients who had undergone additional treatment after endoscopic resection (ER) for cN0 superficial carcinoma. Methods: Of 140 patients diagnosed as having T1a-MM-SM2 lesions of squamous cell carcinoma of the esophagus who had undergone ER between January 1998 and March 2010, 83 patients who received additional treatment after ER (surgery, 27 pts; chemoradiotherapy [CRT], 56 pts.) were the subjects of this study. The mean duration of observation was 45.1 months. Results: The en bloc resection rate was 86%. There were 5 patients (6%) who had complications associated with ER, including perforation in 2 patients, secondary hemorrhage in a patient and pneumonia in 2 patients. Complications associated with additional treatment were noted in 13 patients (15.6%), including secondary hemorrhage, recurrent laryngeal nerve paralysis and pulmonary infarction in one patient each, pneumonia in 3, grade ≥ 3 myelosuppression in 5, and syndrome of inappropriate secretion of antidiuretic hormone (SIADH) and radiation pneumonitis in one patient each. Long-term follow-up revealed no local recurrence and no patients who experienced late toxicity due to CRT. The tumor recurred in 4 patients, the site of recurrent lesion being the mediastinum in 3 patients and the cervical lymph node in one patient, of whom 2 patients died of the primary disease. The 5-year survival rate was 88.4%. Conclusions: Endoscopic resection plus additional treatment for superficial carcinoma of the esophagus did not entail the development of any serious complications; thus, such combined treatment was safe and feasible. The long-term follow-up results were fairly gratifying, and ER with subsequent additional treatment is considered to be valid for patients with cN0 superficial carcinoma of the esophagus. No significant financial relationships to disclose.

En Bloc Resection of Lamina and Ossified Ligamentum Flavum in the Treatment of Thoracic Ossification of the Ligamentum Flavum

Neurosurgery ◽  
2010 ◽  
Vol 66 (6) ◽  
pp. 1181-1186 ◽  
Author(s):  
Lian-shun Jia ◽  
Xiong-sheng Chen ◽  
Sheng-yuan Zhou ◽  
Jiang Shao ◽  
Wei Zhu
Keyword(s):  
Evaluation System ◽  
Ligamentum Flavum ◽  
En Bloc Resection ◽  
Bloc Resection ◽  
Neurological Dysfunction ◽  
Thoracic Myelopathy ◽  
En Bloc ◽  
Improvement Rate ◽  
The Mean

Abstract OBJECTIVE We performed a retrospective patient chart review to determine the feasibility and safety of en bloc resection of lamina and ossified ligamentum flavum in the treatment of thoracic ossification of ligamentum flavum (OLF). METHODS From January 2000 to June 2006, 36 patients with thoracic OLF underwent en bloc resection of lamina and ossified ligamentum flavum by a burr-grinding technique. The range of resection included one lamina superior and one lamina inferior to the diseased segments. Ossified dura mater was removed if present, and simultaneous repair was carried out. RESULTS The mean preoperative Japanese Orthopedic Association (JOA) score (an evaluation system for thoracic myelopathy with a total score of 11 points) was 5 points (range, 3–9 points). The mean JOA score at the last follow-up visit (mean follow-up period, 3.9 years) was 8.44 points (range, 6–11 points). The range of improvement was from 2 to 6 points, and the mean improvement rate was 60.5% (range, 33.3%–100%). No postoperative aggravation of neurological dysfunction, leakage of cerebrospinal fluid (CSF), wound infection, kyphosis, or recurrence occurred. A CSF cyst found in one patient 3 weeks postoperatively was absorbed automatically after 10 months. CONCLUSION The en bloc resection technique described here is both safe and effective.

PD12-11 LONG-TERM FOLLOW-UP IN HIGH RISK NON MUSCLE INVASIVE BLADDER CANCER “EN-BLOC” RESECTION

2020 ◽  
Vol 203 ◽  
pp. e263
Author(s):  
Marco Paciotti* ◽  
Fasulo Vittorio ◽  
Massimo Lazzeri ◽  
Domanico Luigi ◽  
Federica Regis ◽  
...  
Keyword(s):  
Bladder Cancer ◽  
High Risk ◽  
En Bloc Resection ◽  
Bloc Resection ◽  
Muscle Invasive Bladder Cancer ◽  
En Bloc ◽  
Long Term Follow Up ◽  
Muscle Invasive

scholarly journals Endoscopic Submucosal Dissection of Gastric Neoplastic Lesions: An Italian, Multicenter Study

2020 ◽  
Vol 9 (3) ◽  
pp. 737
Author(s):  
Raffaele Manta ◽  
Giuseppe Galloro ◽  
Francesco Pugliese ◽  
Stefano Angeletti ◽  
Angelo Caruso ◽  
...  
Keyword(s):  
Endoscopic Submucosal Dissection ◽  
En Bloc Resection ◽  
Bloc Resection ◽  
R0 Resection ◽  
Gastric Lesions ◽  
En Bloc ◽  
Submucosal Dissection ◽  
Neoplastic Lesions ◽  
One Year

Endoscopic submucosal dissection (ESD) allows removing neoplastic lesions on gastric mucosa, including early gastric cancer (EGC) and dysplasia. Data on ESD from Western countries are still scanty. We report results of ESD procedures performed in Italy. Data of consecutive patients who underwent ESD for gastric neoplastic removal were analyzed. The en bloc resection rate and the R0 resection rates for all neoplastic lesions were calculated, as well as the curative rate (i.e., no need for surgical treatment) for EGC. The incidence of complications, the one-month mortality, and the recurrence rate at one-year follow-up were computed. A total of 296 patients with 299 gastric lesions (80 EGC) were treated. The en bloc resection was successful for 292 (97.6%) and the R0 was achieved in 266 (89%) out of all lesions. In the EGC group, the ESD was eventually curative in 72.5% (58/80) following procedure. A complication occurred in 30 (10.1%) patients. Endoscopic treatment was successful in all 3 perforations, whereas it failed in 2 out of 27 bleeding patients who were treated with radiological embolization (1 case) or surgery (1 case). No procedure-related deaths at one-month follow-up were observed. Lesion recurrence occurred in 16 (6.2%) patients (6 EGC and 10 dysplasia). In conclusion, the rate of both en bloc and R0 gastric lesions removal was very high in Italy. However, the curative rate for EGC needs to be improved. Complications were acceptably low and amenable at endoscopy.

scholarly journals Endoscopic Resection of Ampullary Tumours: Long-term Outcomes and Adverse Events

2019 ◽  
Vol 3 (1) ◽  
pp. 17-25
Author(s):  
Ali Alali ◽  
Alberto Espino ◽  
Maria Moris ◽  
Myriam Martel ◽  
Ingrid Schwartz ◽  
...  
Keyword(s):  
Adverse Events ◽  
Endoscopic Resection ◽  
En Bloc Resection ◽  
Bloc Resection ◽  
Low Grade ◽  
Long Term Outcomes ◽  
En Bloc ◽  
Tertiary Center

Abstract Background The management of ampullary lesions has shifted from surgical approach to endoscopic resection. Previous reports were limited by small numbers of patients and short follow-up. The aim of this study is to describe short- and long-term outcomes in a large cohort of patients undergoing endoscopic ampullectomy. Methods Retrospective study of endoscopic ampullectomies performed at a tertiary center from January 1999 to October 2016. Information recorded includes patient demographics, clinical outcomes, lesion pathology, procedural events, adverse events and follow-up data. Results Overall, 103 patients underwent endoscopic resection of ampullary tumours (mean age 62.3 ± 14.3 years, 50.5% female, mean lesion size 20.9 mm; 94.9% adenomas, with a majority of lesions exhibiting low-grade dysplasia (72.7%). Complete endoscopic resection was achieved in 82.5% at initial procedure. Final complete endoscopic resection was achieved in all patients with benign pathology on follow-up procedures. Final pathology showed that 11% had previously undiagnosed invasive carcinoma. Delayed postprocedure bleeding occurred in 21.4%, all of which were managed successfully at endoscopy. Acute pancreatitis complicated 15.5% of procedures (mild in 93.8%). Perforation occurred in 5.8%, all treated conservatively except for one patient requiring surgery. Piecemeal resection was associated with significantly higher recurrence compared to en-bloc resection (54.3% versus 26.2%, respectively, P = 0.012). All recurrences were treated endoscopically. Conclusion Endoscopic ampullectomy appears both safe and effective in managing patients with ampullary tumours in experienced hands. Most adverse events can be managed conservatively. Many patients develop recurrence during long-term follow-up but can be managed endoscopically. Recurrence rates may be reduced by performing initial en-bloc resection.

scholarly journals Long-term outcomes in primary spinal osteochondroma: a multicenter study of 27 patients

2015 ◽  
Vol 22 (6) ◽  
pp. 582-588 ◽  
Author(s):  
Daniel M. Sciubba ◽  
Mohamed Macki ◽  
Mohamad Bydon ◽  
Niccole M. Germscheid ◽  
Jean-Paul Wolinsky ◽  
...  
Keyword(s):  
En Bloc Resection ◽  
Bloc Resection ◽  
Benign Tumors ◽  
En Bloc ◽  
Tumor Stages ◽  
Mobile Spine ◽  
Spinal Osteochondroma ◽  
Stage 1

OBJECT Clinical outcomes in patients with primary spinal osteochondromas are limited to small series and sporadic case reports. The authors present data on the first long-term investigation of spinal osteochondroma cases. METHODS An international, multicenter ambispective study on primary spinal osteochondroma was performed. Patients were included if they were diagnosed with an osteochondroma of the spine and received surgical treatment between October 1996 and June 2012 with at least 1 follow-up. Perioperative prognostic variables, including patient age, tumor size, spinal level, and resection, were analyzed in reference to long-term local recurrence and survival. Tumor resections were compared using Enneking appropriate (EA) or Enneking inappropriate surgical margins. RESULTS Osteochondromas were diagnosed in 27 patients at an average age of 37 years. Twenty-two lesions were found in the mobile spine (cervical, thoracic, or lumbar) and 5 in the fixed spine (sacrum). Twenty-three cases (88%) were benign tumors (Enneking tumor Stages 1–3), whereas 3 (12%) exhibited malignant changes (Enneking tumor Stages IA–IIB). Sixteen patients (62%) underwent en bloc treatment—that is, wide or marginal resection—and 10 (38%) underwent intralesional resection. Twenty-four operations (92%) followed EA margins. No one received adjuvant therapy. Two patients (8%) experienced recurrences: one in the fixed spine and one in the mobile spine. Both recurrences occurred in latent Stage 1 tumors following en bloc resection. No osteochondroma-related deaths were observed. CONCLUSIONS In the present study, most patients underwent en bloc resection and were treated as EA cases. Both recurrences occurred in the Stage 1 tumor cohort. Therefore, although benign in character, osteochondromas still require careful management and thorough follow-up.

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