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.

Upper facet joint en bloc resection for the treatment of thoracic myelopathy caused by ossification of the ligamentum flavum

2013 ◽  
Vol 19 (1) ◽  
pp. 81-89 ◽  
Author(s):  
Zhong Yang ◽  
Yuan Xue ◽  
Qin Dai ◽  
Chao Zhang ◽  
H. Fang Zhou ◽  
...  
Keyword(s):  
Thoracic Spine ◽  
Ligamentum Flavum ◽  
Facet Joint ◽  
Neurological Status ◽  
En Bloc Resection ◽  
Bloc Resection ◽  
Pathological Examination ◽  
Thoracic Myelopathy ◽  
En Bloc ◽  
The Mean

Object The authors introduce a novel technique to treat thoracic myelopathy caused by ossification of the ligamentum flavum (OLF): upper facet joint en bloc resection. This surgical procedure avoids surgery to the most heavily compressed cord surface, contact with the cord, and cord injury. The epidural venous plexus bleeding point can be directly seen and easily controlled during the decompression. Methods Between January 2007 and January 2009, thoracic myelopathy caused by OLF was diagnosed in 38 patients using plain radiography, CT, and MRI, and diagnoses were confirmed by postoperative pathological examination. All upper facet joint en bloc resection procedures were performed in 2 steps. First, the bony structures above the upper facet joint surfaces were resected and the upper facet joints were isolated. Second, en bloc resection of the upper facet joint was performed by dissection of the junction between the pedicle and upper facet joint. Intraoperative neurological monitoring was performed in all cases. The modified Japanese Orthopaedic Association (mJOA) scoring system was used to assess neurological status. The degree of postoperative expansion of the spinal cord was calculated on axial MR images. The pre- and postdecompression Cobb angle was applied to assess the magnitude of local kyphosis. Results Of the 38 cases of OLF, 6 were single level, 12 were double level, and 20 were multilevel. Of the 92 ossified segments in this study, 23 (25.0%) were located in the upper thoracic spine (T1–4), 13 (14.1%) were located in the midthoracic spine (T5–8), and 56 (60.9%) were located in the lower thoracic spine (T9–L1). The mean intraoperative blood loss was 340 ± 54 ml. The neurological status improved during follow-up (mean 46.1 months) from a preoperative mean mJOA score of 5.39 ± 1.52 to 8.97 ± 1.22 points (t = 18.39, p < 0.05). The neurological function recovery rate ranged from 28.6% to 100%. The mean increase in pre- and postoperative kyphosis of the involved vertebrae was only 1.3° ± 1.6°. The increase in the cross-sectional area of the dural sac at the level of maximum compression suggested that decompression was complete. Conclusions Upper facet joint en bloc resection is effective and may be a reasonable alternative treatment choice for thoracic myelopathy caused by OLF.

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 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.

scholarly journals Anchoring the snare tip is a feasible endoscopic mucosal resection method for small rectal neuroendocrine tumors

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Jeongseok Kim ◽  
Jisup Kim ◽  
Eun Hye Oh ◽  
Nam Seok Ham ◽  
Sung Wook Hwang ◽  
...  
Keyword(s):  
Endoscopic Mucosal Resection ◽  
Neuroendocrine Tumors ◽  
Similar Efficacy ◽  
En Bloc Resection ◽  
Lesion Size ◽  
Bloc Resection ◽  
En Bloc ◽  
Delayed Bleeding ◽  
Mucosal Resection ◽  
The Mean

AbstractSmall rectal neuroendocrine tumors (NETs) can be treated using cap-assisted endoscopic mucosal resection (EMR-C), which requires additional effort to apply a dedicated cap and snare. We aimed to evaluate the feasibility of a simpler modified endoscopic mucosal resection (EMR) technique, so-called anchored snare-tip EMR (ASEMR), for the treatment of small rectal NETs, comparing it with EMR-C. We retrospectively evaluated 45 ASEMR and 41 EMR-C procedures attempted on small suspected or established rectal NETs between July 2015 and May 2020. The mean (SD) lesion size was 5.4 (2.2) mm and 5.2 (1.7) mm in the ASEMR and EMR-C groups, respectively (p = 0.558). The en bloc resection rates of suspected or established rectal NETs were 95.6% (43/45) and 100%, respectively (p = 0.271). The rates of histologic complete resection of rectal NETs were 94.1% (32/34) and 88.2% (30/34), respectively (p = 0.673). The mean procedure time was significantly shorter in the ASEMR group than in the EMR-C group (3.12 [1.97] vs. 4.13 [1.59] min, p = 0.024). Delayed bleeding occurred in 6.7% (3/45) and 2.4% (1/41) of patients, respectively (p = 0.618). In conclusion, ASEMR was less time-consuming than EMR-C, and showed similar efficacy and safety profiles. ASEMR is a feasible treatment option for small rectal NETs.

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.

scholarly journals Parathyroid carcinoma

2006 ◽  
Vol 63 (8) ◽  
pp. 765-769
Author(s):  
Aleksandar Filipovic ◽  
Ivan Paunovic ◽  
Dragutin Savjak ◽  
Tamara Zivkovic
Keyword(s):  
Primary Hyperparathyroidism ◽  
Parathyroid Carcinoma ◽  
Disease Recurrence ◽  
En Bloc Resection ◽  
Bloc Resection ◽  
Endocrine Tumors ◽  
En Bloc ◽  
Histologic Diagnosis ◽  
Serum Pth

Background. Parathyroid carcinoma is the least frequent malignancy among endocrine tumors. In the most reported series of patients with primary hyperparathyroidism the incidence of carcinoma is less than 1%. Recognition by a surgeon that the parathyroid tumor is malignant, and the performance of an adequate en bloc removal of primary lesion, with histologic diagnosis offer the best treatment of a patient with this unusual malignancy. Case report. We reported a 30-year-old patient with parathyroid carcinoma, primary hyperparathyroidism, and recurrent nephrocalcinosis. Marked hypercalcemia, low serum phosphorus, and substantial elevation of serum parathyroid hormone indicated a diagnosis of primary hiperparathyroidism. General symptoms were anorexia, muscle weakness, back pain and depression. Ultrasonography done before the surgery revealed a 2 cm upper left parathyroid gland with solid and cystic areas. The neck exploration was done with en block resection of the tumor. A histopathological evaluation confirmed the diagnosis of parathyroid carcinoma. Over more than a three-year-follow-up, the patient had no evidence of the disease recurrence and his serum PTH and calcium levels remained within the normal. Conclusion. Parathyroid carcinoma is a rare cause of primary hyperparathyroidism. Preoperative diagnosis remains a challenge. Radical en bloc resection of the tumor is the treatment of choice for this malignancy.

En Bloc Resection of the Duodenum for Locally Advanced Right Colon Adenocarcinoma

2007 ◽  
Vol 73 (10) ◽  
pp. 1063-1066 ◽  
Author(s):  
Ahmad N. Hakimi ◽  
David K. Rosing ◽  
Bruce E. Stabile ◽  
Beverley A. Petrie
Keyword(s):  
Colon Cancer ◽  
Locally Advanced ◽  
En Bloc Resection ◽  
Bloc Resection ◽  
Morbidity And Mortality ◽  
Right Colon ◽  
En Bloc ◽  
Adjacent Structures ◽  
Duodenal Invasion

Direct invasion of colorectal adenocarcinoma into adjacent structures occurs frequently, but only rarely is the duodenum involved. This study was undertaken to assess the safety and efficacy of en bloc resection of locally advanced right colon carcinoma invading the duodenum. A retrospective review of 49 patients with locally advanced colon cancer, surgically managed between 2000 and 2005, was performed. Forty-six patients underwent en bloc resection of colon and adjacent organs not involving the duodenum. Three patients with duodenal invasion underwent en bloc partial duodenectomy. The mean operative blood loss, length of stay, postoperative morbidity, and mortality compare favorably between these two groups of patients. Of the 46 patients with en bloc resection of other organs, 27 are alive at 12 to 60 months follow up. Two patients with duodenal invasion are alive without recurrence at 15 and 20 months follow up. En bloc resection of colon cancer invading the duodenum can be performed safely because morbidity and mortality rates are comparable to those attending extended resections of other locally advanced colon carcinomas. Overall survival in patients who underwent surgery with curative intent justifies en bloc duodenal resection in selected patients.

scholarly journals Mandibular periosteal (juxtacortical) chondrosarcoma

2009 ◽  
Vol 20 (5) ◽  
pp. 428-433 ◽  
Author(s):  
Elisângela Maria Cunha Costa ◽  
Bárbara Lima Lucas ◽  
Mariana Reis Silva ◽  
Renata Hinhug Vilarinho ◽  
Paulo Rogério de Faria ◽  
...  
Keyword(s):  
Final Diagnosis ◽  
En Bloc Resection ◽  
Bloc Resection ◽  
Bone Surface ◽  
En Bloc ◽  
Grade Ii ◽  
Well Differentiated ◽  
Slow Growing ◽  
Tomography Scan

Periosteal (juxtacortical) chondrosarcoma (PC) is a well-differentiated malignant cartilage-forming tumor arising from the external bone surface, especially in long bones. The therapy of choice is en-bloc resection and, in general, its prognosis is good. This paper reports a rare case of PC affecting the mandible of a 41-year-old man. The lesion presented as a slow-growing-painless swelling that lasted 2 months. Computed tomography scan showed a tumoral mass arising from the external bone surface, extending into the adjacent soft tissue presenting patchy regions of popcorn-like calcifications. A final diagnosis of PC (grade II) was rendered after biopsy. Hemimandibulectomy was undertaken followed by complementary radiotherapy with 70 Gy. Although no episodes of recurrence or metastasis had been noticed after 18 months of follow-up, the patient died and causa mortis could not be established.

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.

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