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Kaiser R, Khadanovich A, Benes M, Reynolds J, Mawhinney G, Giele H, Kachlik D. Clinical Anatomy of the Sacral Nerve Roots and Its Relevance to Their Reconstruction After Sacrectomy. Neurosurgery 2024:00006123-990000000-01311. [PMID: 39132994 DOI: 10.1227/neu.0000000000003135] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2024] [Accepted: 06/15/2024] [Indexed: 08/13/2024] Open
Abstract
BACKGROUND AND OBJECTIVES En bloc sacrectomy is associated with sacral root transection causing loss of urinary bladder, rectum, and sexual function. The aim of the study was to determine the position of the pudendal branches (sensorimotor) and pelvic splanchnic nerves (parasympathetic) on the sacral roots relative to the sacrum, and the minimal and maximal defects in the sacral roots that can be reconstructed by grafting after various types of sacrectomy. METHODS Five cadaveric pelves were dissected bilaterally. The lengths and widths of the S1-S4 roots and their branches were measured. Then, the minimal and maximal defects between the proximal and distal stumps of the sacrificed roots were measured following 3 models of sacrectomy (below S2, below S1, and total sacrectomy). RESULTS The mean distance of the splanchnic nerves from the S2 and S3 anterior sacral foramina was 17.7 ± 7.3 and 23.6 ± 11.1 mm, respectively, and the mean distance of the pudendal S2 and S3 branches was 36.8 ± 13.7 and 30.2 ± 10.8 mm, respectively. The mean widths of the S2 and S3 roots were 9.3 ± 1.9 and 5.4 ± 1.2 mm, respectively. The mean maximal defects in S2 and S3 roots after various types of sacrectomies were between 61.8 ± 16.3 and 100.7 ± 14.3 mm and between 62.7 ± 20.2 and 84.7 ± 25.1 mm, respectively. There were no statistically significant differences between sides or sexes for all obtained measurements. CONCLUSION The reconstruction of the S2-S3 roots is anatomically feasible after partial or total sacrectomies in which the resection of the soft tissue does not extend further than approximately 1.5 to 2 cm ventrally from the sacrum.
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Affiliation(s)
- Radek Kaiser
- Department of Spinal Surgery, Oxford University Hospitals NHS Foundation Trust, Oxford, UK
- Center for Endoscopic, Surgical and Clinical Anatomy (CESKA), Second Faculty of Medicine, Charles University, Prague, Czech Republic
- Department of Anatomy, Second Faculty of Medicine, Charles University, Prague, Czech Republic
| | - Anhelina Khadanovich
- Center for Endoscopic, Surgical and Clinical Anatomy (CESKA), Second Faculty of Medicine, Charles University, Prague, Czech Republic
- Department of Anatomy, Second Faculty of Medicine, Charles University, Prague, Czech Republic
| | - Michal Benes
- Center for Endoscopic, Surgical and Clinical Anatomy (CESKA), Second Faculty of Medicine, Charles University, Prague, Czech Republic
- Department of Anatomy, Second Faculty of Medicine, Charles University, Prague, Czech Republic
| | - Jeremy Reynolds
- Department of Spinal Surgery, Oxford University Hospitals NHS Foundation Trust, Oxford, UK
| | - Gerard Mawhinney
- Department of Spinal Surgery, Oxford University Hospitals NHS Foundation Trust, Oxford, UK
- Nuffield Department of Clinical Neuroscience, University of Oxford, Oxford, UK
| | - Henk Giele
- Nuffield Department of Surgical Sciences, University of Oxford, Oxford, UK
- Department of Plastic Surgery, Oxford University Hospitals NHS Foundation Trust, Oxford, UK
| | - David Kachlik
- Center for Endoscopic, Surgical and Clinical Anatomy (CESKA), Second Faculty of Medicine, Charles University, Prague, Czech Republic
- Department of Anatomy, Second Faculty of Medicine, Charles University, Prague, Czech Republic
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Silverstein JW, D'Amico RS, Mehta SH, Gluski J, Ber R, Sciubba DM, Lo SFL. The diagnostic accuracy of neuromonitoring for detecting postoperative bowel and bladder dysfunction in spinal oncology surgery: a case series. J Neurooncol 2024:10.1007/s11060-024-04742-y. [PMID: 38884662 DOI: 10.1007/s11060-024-04742-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2024] [Accepted: 06/10/2024] [Indexed: 06/18/2024]
Abstract
PURPOSE Postoperative bowel and bladder dysfunction (BBD) poses a significant risk following surgery of the sacral spinal segments and sacral nerve roots, particularly in neuro-oncology cases. The need for more reliable neuromonitoring techniques to enhance the safety of spine surgery is evident. METHODS We conducted a case series comprising 60 procedures involving 56 patients, spanning from September 2022 to January 2024. We assessed the diagnostic accuracy of sacral reflexes (bulbocavernosus and external urethral sphincter reflexes) and compared them with transcranial motor evoked potentials (TCMEP) incorporating anal sphincter (AS) and external urethral sphincter (EUS) recordings, as well as spontaneous electromyography (s-EMG) with AS and EUS recordings. RESULTS Sacral reflexes demonstrated a specificity of 100% in predicting postoperative BBD, with a sensitivity of 73.33%. While sensitivity slightly decreased to 64.71% at the 1-month follow-up, it remained consistently high overall. TCMEP with AS/EUS recordings did not identify any instances of postoperative BBD, whereas s-EMG with AS/EUS recordings showed a sensitivity of 14.29% and a specificity of 97.14%. CONCLUSION Sacral reflex monitoring emerges as a robust adjunct to routine neuromonitoring, offering surgeons valuable predictive insights to potentially mitigate the occurrence of postoperative BBD.
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Affiliation(s)
- Justin W Silverstein
- Department of Neurology, Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, New York, NY, USA.
- Department of Clinical Neurophysiology, Neuro Protective Solutions, New York, NY, USA.
| | - Randy S D'Amico
- Department of Neurological Surgery, Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, New York, NY, USA
| | - Shyle H Mehta
- Department of Neurological Surgery, Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, New York, NY, USA
| | - Jacob Gluski
- Department of Neurological Surgery, Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, New York, NY, USA
| | - Roee Ber
- Department of Neurological Surgery, Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, New York, NY, USA
| | - Daniel M Sciubba
- Department of Neurological Surgery, Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, New York, NY, USA
| | - Sheng-Fu Larry Lo
- Department of Neurological Surgery, Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, New York, NY, USA
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Farrokhi MR, Nouraei H, Hosseini SV, Tarokh A, Mousavi SR, Taheri R, Akbarzadeh A, Shahpari Motlagh MA. Sacrectomy with Posterior-Only Approach in Sacral Tumors: An Analysis of 26 Cases and Review of Literature. World Neurosurg 2023; 179:e288-e295. [PMID: 37625639 DOI: 10.1016/j.wneu.2023.08.078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Revised: 08/16/2023] [Accepted: 08/17/2023] [Indexed: 08/27/2023]
Abstract
BACKGROUND Sacral masses can be removed using anterior, posterior, or combined approaches. Achieving total sacrectomy through a posterior-only approach results in a shorter procedure time, minimal tissue damage, and a reduced risk of complications. In this study, we aimed to share our experience with performing total sacrectomy using a posterior-only approach in 26 patients and to assess their clinical outcomes at our center. MATERIALS AND METHODS This retrospective study examines the clinical progression, surgical response, and outcomes of 26 patients with various sacral mass pathologies. We accessed patient information from our hospital records. RESULTS The study included 14 men (54%) and 12 women (46%), with an average age of 49.8 years. Most cases had a normal body mass index, while 6 were overweight. Sacrectomy was performed at a high level in 12 patients and at a middle level in 14 patients. In addition to pain, motor deficits were observed in 9 patients, and sphincter dysfunction was found in 5. Preoperative embolization was conducted for 11 patients. The most prevalent lesions were chordoma (8 patients), malignant peripheral nerve sheath tumor (4 patients), giant cell tumor (3 patients), and solitary plasmacytoma (3 patients). Only 1 patient experienced a temporary partial motor deficit after surgery. There were no instances of cerebrospinal fluid leakage. Five patients experienced local recurrence, and 1 had distant metastasis. CONCLUSIONS Performing sacrectomy for large or giant sacral tumors through a posterior approach is both feasible and safe, resulting in reduced morbidity and no significant change in overall survival.
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Affiliation(s)
- Majid Reza Farrokhi
- Shiraz Neuroscience Research Center, Shiraz University of Medical Sciences, Shiraz, Iran; Neurosurgery Department, Shiraz University of Medical Sciences, Shiraz, Iran.
| | - Hormoz Nouraei
- Shiraz Neuroscience Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | | | - Amir Tarokh
- Shiraz Neuroscience Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Seyed Reza Mousavi
- Shiraz Neuroscience Research Center, Shiraz University of Medical Sciences, Shiraz, Iran; Neurosurgery Department, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Reza Taheri
- Shiraz Neuroscience Research Center, Shiraz University of Medical Sciences, Shiraz, Iran; Neurosurgery Department, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Armin Akbarzadeh
- Department of Orthopedic Surgery, Bone and Joint Diseases Research Center, Chamran Hospital, Shiraz University of Medical Sciences, Shiraz, Iran
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Koch K, Pal Varga P, Ronai M, Klemencsics I, Szoverfi Z, Lazary A. Complication Pattern of Sacral Primary Tumor Resection: A Study on the Risk Factors of Surgical Site Infection and Bowel or Bladder Dysfunction and Their Associations with Length of Hospital Stay. Asian Spine J 2023; 17:851-861. [PMID: 37690989 PMCID: PMC10622823 DOI: 10.31616/asj.2022.0404] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Revised: 06/02/2023] [Accepted: 06/18/2023] [Indexed: 09/12/2023] Open
Abstract
STUDY DESIGN Retrospective open cohort study. PURPOSE The current study aimed to explore the pattern of complications after primary sacral tumor resection, to investigate the possible effect of several perioperative parameters on the development of complications, and to identify which complications are associated with the length of hospital stay (LOS). OVERVIEW OF LITERATURE Primary sacral tumor (pST) resection is associated with a high complication rate. However, the number of studies on these complications and their effect on LOS is limited. METHODS The clinical data of 140 patients with pST surgeries and 106 subsequent patients with local recurrence surgeries in four subgroups (index surgery, local recurrence surgery, malignant, and benign tumor) were prospectively collected and analyzed. The prognostic value of several perioperative factors on the development of surgical site infection (SSI), bowel and bladder dysfunction (BBD), and LOS was investigated using the logistic and linear regression models. RESULTS The overall complication rates were 61.2% after index surgeries and 50.9% after local recurrence surgeries. The most frequent complications were SSI, vegetative dysfunction, urinary tract infections, and neurological deterioration. Age >55 years, malignant tumors, and red blood cell transfusion had a predictive effect on the development of SSI in the logistic model (p<0.01, R2=0.43). Bilateral S2 or S3 resection commonly caused postoperative BBD (chi-square test=62.5, degrees of freedom=4, p<0.001). In the multiple linear regression model, wound dehiscence, BBD, systemic and urinary tract infection, cerebrospinal fluid leak, and neurologic deterioration were associated with a significantly long LOS (p<0.01, R2=0.62). CONCLUSIONS Surgical resection of pSTs has a high complication rate. Its common complications are SSI and BBD, both of which can have a significant influence on global therapeutic outcome. Malignant tumor diagnosis, old age, and red blood cell transfusion can remarkably increase the risk of SSI. Further, the development of BBD is significantly associated with the number of resected sacral nerve roots. By decreasing perioperative complications, LOS can decrease significantly.
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Affiliation(s)
- Kristof Koch
- National Center for Spinal Disorders, Buda Health Center, Budapest,
Hungary
- School of PhD Studies, Semmelweis University, Budapest,
Hungary
| | - Peter Pal Varga
- National Center for Spinal Disorders, Buda Health Center, Budapest,
Hungary
| | - Marton Ronai
- National Center for Spinal Disorders, Buda Health Center, Budapest,
Hungary
| | - Istvan Klemencsics
- National Center for Spinal Disorders, Buda Health Center, Budapest,
Hungary
- Department of Spine Surgery, Department of Orthopaedics, Semmelweis University, Budapest,
Hungary
| | - Zsolt Szoverfi
- National Center for Spinal Disorders, Buda Health Center, Budapest,
Hungary
- Department of Spine Surgery, Department of Orthopaedics, Semmelweis University, Budapest,
Hungary
| | - Aron Lazary
- National Center for Spinal Disorders, Buda Health Center, Budapest,
Hungary
- Department of Spine Surgery, Department of Orthopaedics, Semmelweis University, Budapest,
Hungary
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Zhang L, Akiyama T, Saito M, Okamoto M, Gokita T, Kobayashi H, Ae K, Ohno T. Complications and Functional Outcome Differences in Carbon Ion Radiotherapy and Surgery for Malignant Bone Tumors of the Pelvis: A Multicenter, Cohort Study. Ann Surg Oncol 2023; 30:4475-4484. [PMID: 36853566 DOI: 10.1245/s10434-023-13226-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Accepted: 01/23/2023] [Indexed: 03/01/2023]
Abstract
BACKGROUND Carbon ion radiotherapy (CIRT) is an evolving treatment option for malignant pelvic tumors in patients with poor surgical indications. However, the difference in complications and functional outcomes between CIRT and surgery is poorly understood. This study compares the complications and functional outcomes of CIRT and surgery to facilitate treatment selection. METHODS A total of 28 patients who underwent CIRT for pelvic bone tumors while theoretically meeting the surgical resection criteria were included. Sixty-nine patients who underwent surgery for pelvic bone tumors were included as controls. Major complication rates and functional outcomes (ambulatory, pain, urination, constipation) were evaluated and compared at several time points (pretreatment, discharge, and final follow-up) between the groups. RESULTS Early (within 90 days) major complications were not observed in the CIRT group but occurred in 30% of the surgery group, which was statistically significant (P < 0.001). In contrast, late (after 90 days) major complications occurred more often in the CIRT group than in the surgery group (18% and 4%, respectively; P = 0.042). From pretreatment until discharge, all functional outcomes in the surgery group deteriorated (P < 0.001 for all) but did not change in the CIRT group (P = 0.77-1.00). At the final follow-up, all functional outcomes showed no significant intergroup difference (P = 0.28-0.92) due to the recovery trend in the surgery group and the deterioration trend in the CIRT group. CONCLUSIONS Compared with surgery, CIRT may have favorable safety and stable functional outcomes in the short-term but more late complications. Mid-term functional outcomes were similar between the groups.
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Affiliation(s)
- Liuzhe Zhang
- Department of Orthopedic Surgery, Jichi Medical University Saitama Medical Center, Saitama, Japan
- Department of Orthopedic Surgery, The University of Tokyo, Tokyo, Japan
| | - Toru Akiyama
- Department of Orthopedic Surgery, Jichi Medical University Saitama Medical Center, Saitama, Japan.
| | - Masanori Saito
- Department of Orthopedic Oncology, The Cancer Institute Hospital of The Japanese Foundation for Cancer Research, Tokyo, Japan
| | | | - Tabu Gokita
- Department of Orthopedic Oncology, Saitama Cancer Center, Saitama, Japan
| | - Hiroshi Kobayashi
- Department of Orthopedic Surgery, The University of Tokyo, Tokyo, Japan
| | - Keisuke Ae
- Department of Orthopedic Oncology, The Cancer Institute Hospital of The Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Tatsuya Ohno
- Gunma University Heavy Ion Medical Center, Maebashi, Japan
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Zoccali C, Conti S, Zoccali G, Cinotti G, Biagini R. Pelvic ring reconstruction with tibial allograft, screws and rods following enneking type I and IV resection of primary bone tumors. Surg Oncol 2023; 48:101923. [PMID: 36931178 DOI: 10.1016/j.suronc.2023.101923] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Revised: 02/21/2023] [Accepted: 03/05/2023] [Indexed: 03/13/2023]
Abstract
INTRODUCTION Surgery of primary malignant tumors involving the sacroiliac joint requires wide resection, which often interrupts the pelvic ring. Nowadays, restoration of the pelvic ring to provide stability and which technique is most fitting remain subject to debate. The aim of this study is to evaluate the results of pelvic reconstruction with pedicle screw instrumentation and tibial allograft following Enneking Type I-IV resections. PATIENTS AND METHODS All patients who underwent reconstruction with tibial allograft, screws and rods after resection of areas I and IV for primary bone tumors between 2017 and 2022 were reviewed. Clinical and radiological characteristics, fusion rate and functional results were analyzed. The MSTS score and the TESS were used to evaluate functional results. RESULTS Seven patients were included in the study. Chondrosarcoma was the most common histology. Only four patients reported pain. No fractures were observed at tumor diagnosis. Computer-assisted navigation was used in six cases. Reconstruction was performed in four cases with a screw inserted in the homolateral L5 pedicle and in the ischium, in two cases with a screw in the homolateral L4 pedicle and another in the homolateral L5 pedicle, in the last case with two screws inserted in L4 and L5, one screw in the ischium and another one in the residual iliac wing. In this case a contralateral stabilization was also carried out. The spine screws and the iliac screws were connected with a rod. The mean follow-up for all 7 patients was 37 months. One patient (16.6%) died due to general complications not directly related to the surgery; while the others are alive and apparently free of disease. Complete fusion was obtained in four out of seven patients and the average time for fusion was 9 months. The average MSTS score and TESS were 58.7% and 57.8%, respectively. DISCUSSION The need for reconstruction is thoroughly debated in literature. The advantages of restoring posterior pelvis stability are the prevention of long-term pain associated with limb shortening and secondary scoliosis. Re-establishment of the pelvic ring can be achieved through synthetic, biologic or hybrid reconstructions. CONCLUSIONS More studies that assess the surgical consequences at long-term follow-up and help clarify the indications for reconstruction and the specific technique are necessary to confirm our preliminary results.
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Affiliation(s)
- Carmine Zoccali
- Department of Anatomical, Histological, Forensic Medicine and Orthopaedic Science, University of Rome, Piazzale Aldo Moro 5, 00185, Rome, Italy; Oncological Orthopedics Department, IRCCS - Regina Elena National Cancer Institute, Via Elio Chianesi 53, 00144, Rome, Italy.
| | - Stefano Conti
- Department of Anatomical, Histological, Forensic Medicine and Orthopaedic Science, University of Rome, Piazzale Aldo Moro 5, 00185, Rome, Italy
| | - Giovanni Zoccali
- Plastic and Reconstructive Surgery, IRCCS - Regina Elena National Cancer Institute, Via Elio Chianesi 53, 00144, Rome, Italy
| | - Gianluca Cinotti
- Department of Anatomical, Histological, Forensic Medicine and Orthopaedic Science, University of Rome, Piazzale Aldo Moro 5, 00185, Rome, Italy
| | - Roberto Biagini
- Oncological Orthopedics Department, IRCCS - Regina Elena National Cancer Institute, Via Elio Chianesi 53, 00144, Rome, Italy
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Setiawan E, Rifardi D, Husin S. One-year follow-up after partial sacrectomy without stabilization in sacral chordoma: A case report and literature review. Int J Surg Case Rep 2023; 105:108007. [PMID: 36963223 PMCID: PMC10053398 DOI: 10.1016/j.ijscr.2023.108007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Revised: 03/04/2023] [Accepted: 03/16/2023] [Indexed: 03/22/2023] Open
Abstract
INTRODUCTION AND IMPORTANCE Chordoma is a rare sarcoma of the bone with a slow-growing nature but an aggressive nature locally. The subtle onset and minor symptoms cause a delayed diagnosis. Unfortunately, Chordoma is discovered when the prognosis is poor, which make the management procedure more difficult. CASE PRESENTATION A 56 years old woman presented with back pain, bowel and bladder dysfunction, and numbness around the anus for the last six months. Sensory examination revealed hypoesthesia on the S2-S4 dermatomes and the rectal toucher revealed a mass. Pelvic x-ray revealed an osteolytic lesion on the sacrum and a MRI revealed a sacrum mass on S2. Confirmed by a CT Scan lumbosacral contrast that revealed a solid mass with osteolytic and osteosclerotic changes on the sacrum bone from S2 to the coccyx. We performed a partial en bloc sacrectomy by posterior approach with an inverted goblet incision without lumbopelvic stabilization. CLINICAL DISCUSSION A few months after surgery, the patient still had some similar complaints and went to physiotherapy and radiotherapy on a regular basis. 1 year follow-up, there was no recurrence process proven by adjunct examination and the improvement was demonstrated by the relief of back pain, and ability to do daily activities. CONCLUSION Chordoma can be improved by partial sacrectomy without lumbopelvic stabilization that revealed good results from function and complication. A multi-professional approach to the patient is essential.
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Affiliation(s)
- Eko Setiawan
- Department of Orthopedics, Faculty of Medicine, University Riau, Pekanbaru, Indonesia; Division of Orthopedics, Arifin Achmad Hospital, Pekanbaru, Indonesia.
| | - Dhandia Rifardi
- Division of Orthopedics, Arifin Achmad Hospital, Pekanbaru, Indonesia
| | - Syafruddin Husin
- Department of Orthopedics, Faculty of Medicine, University Riau, Pekanbaru, Indonesia; Division of Orthopedics, Arifin Achmad Hospital, Pekanbaru, Indonesia
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Paredes SR, Smigielski M, Stalley PD, Lee PJ. Pelvic exenteration with high sacrectomy and reconstruction with 3D-printed prosthesis for recurrent sacral chordoma. ANZ J Surg 2023; 93:740-742. [PMID: 35904316 DOI: 10.1111/ans.17952] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2022] [Revised: 05/26/2022] [Accepted: 07/18/2022] [Indexed: 11/29/2022]
Affiliation(s)
- Steven R Paredes
- Department of Colorectal Surgery, Royal Prince Alfred Hospital, Sydney, New South Wales, Australia
| | - Michelle Smigielski
- Department of Colorectal Surgery, Royal Prince Alfred Hospital, Sydney, New South Wales, Australia
| | - Paul D Stalley
- Department of Colorectal Surgery, Royal Prince Alfred Hospital, Sydney, New South Wales, Australia
| | - Peter J Lee
- Department of Colorectal Surgery, Royal Prince Alfred Hospital, Sydney, New South Wales, Australia
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Jae-Min Park A, McDowell S, Mesfin A. Management of Chordoma of the Sacrum and Mobile Spine. JBJS Rev 2022; 10:01874474-202212000-00004. [PMID: 36639876 DOI: 10.2106/jbjs.rvw.22.00162] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
➢ Chordomas account for 1% to 4% of primary tumors of the spine and sacrum. ➢ En bloc resection is the preferred surgical treatment for the management of chordomas. ➢ Proton beam radiation is increasingly being used as a postoperative radiation modality for the treatment of chordomas.
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Affiliation(s)
- Andrew Jae-Min Park
- Department of Orthopedic Surgery and Physical Performance, University of Rochester School of Medicine & Dentistry, Rochester, New York
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Dumont F, Loaec C, Wernert R, Maurel B, Thibaudeau E, Vilcot L. Surgery of resectable local recurrence following colorectal cancer: Compartmental surgery improves local control. J Surg Oncol 2022; 126:1048-1057. [PMID: 35779039 DOI: 10.1002/jso.26990] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Accepted: 05/14/2022] [Indexed: 11/09/2022]
Abstract
BACKGROUND This study aims to identify prognostic factors and define the best extent of surgery for optimizing treatment of local recurrence (LR) following colorectal cancer (CRC). METHODS An institutional database of consecutive patients who underwent radical resection (R0/R1) of LR following CRC was analyzed prospectively from 2010 to 2021 at one tertiary cancer center. RESULTS In this study, 75 patients were included with LR following CRC and analyzed. Patients were categorized as compartmental resections (CompRe) (n = 47) if all adjacent organs were systematically removed, with or without tumor involvement, or noncompartmental resections (NoCompRe) (n = 28) if only contiguously involved organs were resected. NoCompRe were mainly related to contact between major vessels or bone and the tumor, with only 8/19 (42.1%) resections. Five-year overall survival and locoregional-free survival were 37.5% and 38.8% respectively. Local control was better in the CompRe than the NocompRe group (61.4% vs. 11%; p < 0.01). CompRe (hazard ratio: 2.34 [1.16-4.68]; p = 0.017) and absence of peritoneal metastasis (3.05 [1.03-9.02]; p = 0.044) were the two factors associated with decreased abdominal recurrences in multivariate analysis. CONCLUSION Complete compartmental surgery is safe and improves local control. Optimal LR resection needs to remove all contiguous organs, with or without tumor involvement.
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Affiliation(s)
- Frédéric Dumont
- Department of Surgical Oncology, Comprehensive Cancer Center, Institut de Cancérologie de l'Ouest, Saint-Herblain, France
| | - Cécile Loaec
- Department of Surgical Oncology, Comprehensive Cancer Center, Institut de Cancérologie de l'Ouest, Saint-Herblain, France
| | - Romuald Wernert
- Department of Surgical Oncology, Comprehensive Cancer Center, Institut de Cancérologie de l'Ouest, Angers, France
| | - Blandine Maurel
- Department of Vascular Surgery, Hopital Laennec, Saint Herblain, France
| | - Emilie Thibaudeau
- Department of Surgical Oncology, Comprehensive Cancer Center, Institut de Cancérologie de l'Ouest, Saint-Herblain, France
| | - Laurence Vilcot
- Department of Radiology, Comprehensive Cancer Center, Institut de Cancérologie de l'Ouest, Saint-Herblain, France
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Sacral Resections for Primary Sacral Tumor — an Experience from a Tertiary Care Cancer Center in India. Indian J Surg Oncol 2022. [DOI: 10.1007/s13193-021-01454-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
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12
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Eltes PE, Turbucz M, Fayad J, Bereczki F, Szőke G, Terebessy T, Lacroix D, Varga PP, Lazary A. A Novel Three-Dimensional Computational Method to Assess Rod Contour Deformation and to Map Bony Fusion in a Lumbopelvic Reconstruction After En-Bloc Sacrectomy. Front Surg 2022; 8:698179. [PMID: 35071306 PMCID: PMC8766313 DOI: 10.3389/fsurg.2021.698179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Accepted: 11/24/2021] [Indexed: 11/13/2022] Open
Abstract
Introduction: En-bloc resection of a primary malignant sacral tumor with wide oncological margins impacts the biomechanics of the spinopelvic complex, deteriorating postoperative function. The closed-loop technique (CLT) for spinopelvic fixation (SPF) uses a single U-shaped rod to restore the spinopelvic biomechanical integrity. The CLT method was designed to provide a non-rigid fixation, however this hypothesis has not been previously tested. Here, we establish a computational method to measure the deformation of the implant and characterize the bony fusion process based on the 6-year follow-up (FU) data. Materials and Methods: Post-operative CT scans were collected of a male patient who underwent total sacrectomy at the age of 42 due to a chordoma. CLT was used to reconstruct the spinopelvic junction. We defined the 3D geometry of the implant construct. Using rigid registration algorithms, a common coordinate system was created for the CLT to measure and visualize the deformation of the construct during the FU. In order to demonstrate the cyclical loading of the construct, the patient underwent gait analysis at the 6th year FU. First, a region of interest (ROI) was selected at the proximal level of the construct, then the deformation was determined during the follow-up period. In order to investigate the fusion process, a single axial slice-based voxel finite element (FE) mesh was created. The Hounsfield values (HU) were determined, then using an empirical linear equation, bone mineral density (BMD) values were assigned for every mesh element, out of 10 color-coded categories (1st category = 0 g/cm3, 10th category 1.12 g/cm3). Results: Significant correlation was found between the number of days postoperatively and deformation in the sagittal plane, resulting in a forward bending tendency of the construct. Volume distributions were determined and visualized over time for the different BMD categories and it was found that the total volume of the elements in the highest BMD category in the first postoperative CT was 0.04 cm3, at the 2nd year, FU was 0.98 cm3, and after 6 years, it was 2.30 cm3. Conclusion: The CLT provides a non-rigid fixation. The quantification of implant deformation and bony fusion may help understate the complex lumbopelvic biomechanics after sacrectomy.
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Affiliation(s)
- Peter Endre Eltes
- In Silico Biomechanics Laboratory, National Center for Spinal Disorders, Buda Health Center, Budapest, Hungary
- Department of Spine Surgery, Semmelweis University, Budapest, Hungary
- *Correspondence: Peter Endre Eltes
| | - Mate Turbucz
- In Silico Biomechanics Laboratory, National Center for Spinal Disorders, Buda Health Center, Budapest, Hungary
- School of PhD Studies, Semmelweis University, Budapest, Hungary
| | - Jennifer Fayad
- In Silico Biomechanics Laboratory, National Center for Spinal Disorders, Buda Health Center, Budapest, Hungary
- Department of Industrial Engineering, Alma Mater Studiorum, Universita di Bologna, Bologna, Italy
| | - Ferenc Bereczki
- In Silico Biomechanics Laboratory, National Center for Spinal Disorders, Buda Health Center, Budapest, Hungary
- School of PhD Studies, Semmelweis University, Budapest, Hungary
| | - György Szőke
- Department of Orthopaedics, Semmelweis University, Budapest, Hungary
| | - Tamás Terebessy
- Department of Orthopaedics, Semmelweis University, Budapest, Hungary
| | - Damien Lacroix
- INSIGNEO Institute for In Silico Medicine, Department of Mechanical Engineering, The University of Sheffield, Sheffield, United Kingdom
| | - Peter Pal Varga
- National Center for Spinal Disorders, Buda Health Center, Budapest, Hungary
| | - Aron Lazary
- Department of Spine Surgery, Semmelweis University, Budapest, Hungary
- National Center for Spinal Disorders, Buda Health Center, Budapest, Hungary
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13
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Farshad M, Selman F, Burkhard MD, Müller D, Spirig JM. Partial sacrectomy with patient-specific osteotomy guides. NORTH AMERICAN SPINE SOCIETY JOURNAL 2021; 8:100090. [PMID: 35141654 PMCID: PMC8820056 DOI: 10.1016/j.xnsj.2021.100090] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Revised: 10/18/2021] [Accepted: 10/20/2021] [Indexed: 11/16/2022]
Abstract
Background Chordomas are rare, locally aggressive, malignant tumors. Surgical resection with sufficient margins defines the outcome. However, the necessity for wide margins often leads to sacrifice of important neurological structures. 3D-printed osteotomy guides are a promising solution for precise execution of surgical resection. We present probably the first sacrococcygeal chordoma resection with 3D-printed guides. Methods The case of a 49-year-old woman with a sacrococcygeal chordoma, resected with help of 3-D pre-operative planning and patient-specific 3D-printed osteotomy guides, is reported in detail. Results A sufficient tumor excision could be performed successfully while sparing nerve root S4. The planed margin has been exactly maintained, as confirmed by histology. The patient demonstrated an excellent clinical outcome with no evidence of local recurrence. Conclusions 3-D pre-operative planning and patient-specific osteotomy guides can be used for planning and performing en-bloc surgical resection of sacral chordomas.
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Affiliation(s)
- Mazda Farshad
- University Spine Center Zürich, Balgrist University Hospital, University of Zurich, Forchstrasse 340, 8008 Zurich, Switzerland
| | - Farah Selman
- University Spine Center Zürich, Balgrist University Hospital, University of Zurich, Forchstrasse 340, 8008 Zurich, Switzerland
| | - Marco D Burkhard
- University Spine Center Zürich, Balgrist University Hospital, University of Zurich, Forchstrasse 340, 8008 Zurich, Switzerland
| | - Daniel Müller
- University Spine Center Zürich, Balgrist University Hospital, University of Zurich, Forchstrasse 340, 8008 Zurich, Switzerland
| | - José Miguel Spirig
- University Spine Center Zürich, Balgrist University Hospital, University of Zurich, Forchstrasse 340, 8008 Zurich, Switzerland
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14
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Pairojboriboon S, Sacino A, Pennington Z, Lubelski D, Yang R, Morris CD, Suk I, Sciubba DM, Lo SFL. Nerve Root Sparing En Bloc Resection of Sacral Chondrosarcoma: Technical Note and Review of the Literature. Oper Neurosurg (Hagerstown) 2021; 21:497-506. [PMID: 34791405 DOI: 10.1093/ons/opab333] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2021] [Accepted: 07/18/2021] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Total en bloc sacrectomy provides the best long-term local control for large primary bony sacral tumors, but often requires lumbosacral nerve root sacrifice leading to loss of ambulation and/or bowel, bladder, and/or sexual dysfunction. Nerve-sparing techniques may be an option for some patients that avoid these outcomes and accordingly improve postoperative quality of life. OBJECTIVE To describe the technique for a posterior-only en bloc hemisacrectomy with maximal nerve root preservation and to summarize the available literature. METHODS A 38-yr-old woman with a 7.7 × 5.4 × 4.5 cm biopsy-proven grade 2 chondrosarcoma involving the left L5-S2 posterior elements underwent a posterior-only left hemisacrectomy tri-rod L3-pelvis fusion. A systematic review of the English literature was also conducted to identify other descriptions of high sacrectomy with distal sacral nerve root preservation. RESULTS Computer-aided navigation facilitated an extracapsular resection that allowed preservation of the left-sided L5 and S3-Co roots. Negative margins were achieved and postoperatively the patient retained ambulation and good bowel/bladder function. Imaging at 9-mo follow-up showed no evidence of recurrence. The systematic review identified 4 prior publications describing 6 total patients who underwent nerve-sparing sacral resection. Enneking-appropriate resection was only obtained in 1 case though. CONCLUSION Here we describe a technique for distal sacral nerve root preservation during en bloc hemisacrectomy for a primary sacral tumor. Few prior descriptions exist, and the present technique may help to reduce the neurological morbidity of sacral tumor surgery.
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Affiliation(s)
- Sutipat Pairojboriboon
- Department of Neurosurgery, Johns Hopkins Hospital, Baltimore, Maryland, USA.,Department of Orthopaedic Surgery, Phramongkutklao Hospital and College of Medicine, Bangkok, Thailand
| | - Amanda Sacino
- Department of Neurosurgery, Johns Hopkins Hospital, Baltimore, Maryland, USA
| | - Zach Pennington
- Department of Neurosurgery, Johns Hopkins Hospital, Baltimore, Maryland, USA.,Department of Neurosurgery, Mayo Clinic, Rochester, Minnesota, USA
| | - Daniel Lubelski
- Department of Neurosurgery, Johns Hopkins Hospital, Baltimore, Maryland, USA
| | - Robin Yang
- Department of Plastic Surgery, Johns Hopkins Hospital, Baltimore, Maryland, USA
| | - Carol D Morris
- Department of Orthopedic Surgery, Johns Hopkins Hospital, Baltimore, Maryland, USA
| | - Ian Suk
- Department of Neurosurgery, Johns Hopkins Hospital, Baltimore, Maryland, USA
| | - Daniel M Sciubba
- Department of Neurosurgery, Johns Hopkins Hospital, Baltimore, Maryland, USA.,Department of Neurosurgery, Zucker School of Medicine at Hofstra/Northwell, North Shore University Hospital, Manhasset, New York, USA
| | - Sheng-Fu Larry Lo
- Department of Neurosurgery, Johns Hopkins Hospital, Baltimore, Maryland, USA.,Department of Neurosurgery, Zucker School of Medicine at Hofstra/Northwell, North Shore University Hospital, Manhasset, New York, USA
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15
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Chander VS, Govindasamy R, Tukkapuram VR, Gopal S, Rudrappa S. Multidisciplinary Management of Primary Sacral Tumors: A Tertiary Care Center's Experience and Literature Review. Asian Spine J 2021; 16:567-582. [PMID: 34551502 PMCID: PMC9441426 DOI: 10.31616/asj.2021.0152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/17/2021] [Accepted: 06/08/2021] [Indexed: 11/24/2022] Open
Abstract
Sacral tumors are rare and can be benign or malignant. Their management is multifactorial and is based on the pathology, extent, and local and distant spread. Managing sacral tumors is challenging due to their proximity to visceral and neural structures. Surgical wide excision has been the standard of care for aggressive benign and malignant tumors. Our purpose was to evaluate the outcomes of a multimodal approach to managing primary sacral tumors in Sakra World Hospital, a tertiary spine care center in Bengaluru, India and perform a literature review to determine a workflow pathway. Our study was a retrospective review of patient records and included 15 patients with primary sacral tumors. Eleven surgically treated patients were evaluated clinically and radiologically and underwent biopsy before surgical excision by an all-posterior approach. A multidisciplinary approach that included intraoperative neural monitoring, plastic reconstruction, adjuvant chemotherapy, and radiotherapy was implemented whenever necessary. Sacral root preservation was attempted whenever feasible. Functional outcomes (based on the Visual Analog Scale [VAS] and Biagini scoring system) were analyzed along with disease control, with a minimum of 2 years of follow-up. The mean follow-up was 29±9.8 months. The mean VAS score significantly improved from 7.8±2.6 to 3.7±3.8 (p=0.026). Bowel function showed statistically significant improvement, from a mean score of 0.81±0.47 to 0.63±0.52 (p=0.026) at 2 years of follow-up. The mean pretreatment motor and bladder function scores were 0.53±0.31 and 0.74±0.44, respectively, improving to 0.48±0.33 and 0.68±0.56 at follow-up but without statistical significance. There was no significant loss of function, which is expected in radical sacral resections. In conclusion, primary sacral tumors require a multidisciplinary approach and management for optimal outcomes. A stand-alone posterior approach can be employed to treat most sacral lesions. En-bloc wide resection is the optimal treatment for primary malignant and aggressive benign tumors. Preservation of at least one functional S2 nerve root is imperative to preserve bowel and bladder function.
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Affiliation(s)
- Venugopal Sarath Chander
- Institute of Neurosciences, Sakra World Hospital, Bangalore, India.,Department of Spine Surgery, Sakra World Hospital, Bangalore, India
| | - Ramachandran Govindasamy
- Institute of Neurosciences, Sakra World Hospital, Bangalore, India.,Department of Spine Surgery, Sakra World Hospital, Bangalore, India
| | - Venkata Ramakrishna Tukkapuram
- Institute of Neurosciences, Sakra World Hospital, Bangalore, India.,Department of Spine Surgery, Sakra World Hospital, Bangalore, India
| | - Swaroop Gopal
- Institute of Neurosciences, Sakra World Hospital, Bangalore, India.,Department of Spine Surgery, Sakra World Hospital, Bangalore, India
| | - Satish Rudrappa
- Institute of Neurosciences, Sakra World Hospital, Bangalore, India.,Department of Spine Surgery, Sakra World Hospital, Bangalore, India
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16
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Guadarrama-Ortíz P, Montes de Oca-Vargas I, Choreño-Parra JA, Garibay-Gracián A, Capi-Casillas D, Román-Villagomez A, Salinas-Lara C, Palacios-Zúñiga U, Prieto-Rivera ÁD. Nerve preservation during partial sacrectomy by two-stage anterior and posterior approach: illustrative case. JOURNAL OF NEUROSURGERY: CASE LESSONS 2021; 2:CASE21384. [PMID: 35855408 PMCID: PMC9265185 DOI: 10.3171/case21384] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Accepted: 07/20/2021] [Indexed: 11/06/2022]
Abstract
BACKGROUND
Preserving the neurological function of sacral nerves during total or partial sacrectomy is challenging.
OBSERVATIONS
The authors describe a case of an osseous desmoplastic fibroma of the sacrum in a 51-year-old woman. The patient attended the authors’ institution with loss of muscle strength and sensitivity impairment in both legs, gait instability, bowel constipation, urinary incontinence, and weight loss. Preoperative magnetic resonance imaging and positron emission tomography/computed tomography showed intrapelvic and posterior extension of the tumor but sparing of S1 and the sacroiliac and lumbosacral joints. After a multidisciplinary discussion of the case, a staged anterior–posterior approach to the sacrum was chosen. The abdominal approach allowed full mobilization of the uterus, ovaries, bladder, and colon and protection of iliac vessels. After tumor resection, a synthetic surgical mesh was placed over the sacrum to minimize soft tissue defects. Then, the posterior stage allowed the authors to perform a bicortical osteotomy, achieving wide tumor excision with minimal nerve root injury. Spinopelvic fixation was not necessary, because both sacroiliac and lumbosacral joints remained intact. A few days after the surgery, the patient restarted ambulation and recovered sphincter control.
LESSONS
Multidisciplinary planning and a staged abdominal and posterior approach for partial sacrectomy were fundamental to preserve neurological function in this case.
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Affiliation(s)
| | - Ingrid Montes de Oca-Vargas
- Department of Neurosurgery
- Programa de Servicio Social en Investigación, and
- Internado Médico de Pregrado, Centro Especializado en Neurocirugía y Neurociencias México (CENNM), Mexico City, Mexico
| | | | - André Garibay-Gracián
- Department of Neurosurgery
- Programa de Servicio Social en Investigación, and
- Facultad de Estudios Superiores (FES) Iztacala, Universidad Nacional Autónoma de México, Tlalnepantla de Baz, Mexico
| | - Deyanira Capi-Casillas
- Facultad de Estudios Superiores (FES) Iztacala, Universidad Nacional Autónoma de México, Tlalnepantla de Baz, Mexico
- Escuela Nacional de Medicina y Homeopatía, Instituto Politécnico Nacional, Mexico City, Mexico
| | - Alondra Román-Villagomez
- Facultad de Estudios Superiores (FES) Iztacala, Universidad Nacional Autónoma de México, Tlalnepantla de Baz, Mexico
- Escuela Nacional de Medicina y Homeopatía, Instituto Politécnico Nacional, Mexico City, Mexico
| | - Citlaltepetl Salinas-Lara
- Departamento de Neuropatología, Instituto Nacional de Neurología y Neurocirugía “Manuel Velasco Suárez”, Mexico City, Mexico; and
| | - Ulises Palacios-Zúñiga
- Servicio de Neurocirugía, Módulo de Columna, Hospital Regional 1° de Octubre, Instituto de Seguridad y Servicios Sociales de los Trabajadores del Estado (ISSSTE), Mexico City, Mexico
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17
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Pennington Z, Ehresman J, McCarthy EF, Ahmed AK, Pittman PD, Lubelski D, Goodwin CR, Sciubba DM. Chordoma of the sacrum and mobile spine: a narrative review. Spine J 2021; 21:500-517. [PMID: 33589095 DOI: 10.1016/j.spinee.2020.10.009] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/02/2020] [Revised: 09/11/2020] [Accepted: 10/07/2020] [Indexed: 02/03/2023]
Abstract
Chordoma is a notochord-derived primary tumor of the skull base and vertebral column known to affect 0.08 to 0.5 per 100,000 persons worldwide. Patients commonly present with mechanical, midline pain with or without radicular features secondary to nerve root compression. Management of these lesions has classically revolved around oncologic resection, defined by en bloc resection of the lesion with negative margins as this was found to significantly improve both local control and overall survival. With advancement in radiation modalities, namely the increased availability of focused photon therapy and proton beam radiation, high-dose (>50 Gy) neoadjuvant or adjuvant radiotherapy is also becoming a standard of care. At present chemotherapy does not appear to have a role, but ongoing investigations into the ontogeny and molecular pathophysiology of chordoma promise to identify therapeutic targets that may further alter this paradigm. In this narrative review we describe the epidemiology, histopathology, diagnosis, and treatment of chordoma.
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Affiliation(s)
- Zach Pennington
- Department of Neurosurgery, Johns Hopkins University School of Medicine, 600 N. Wolfe St., Meyer 5-185A, Baltimore, MD 21287, USA
| | - Jeff Ehresman
- Department of Neurosurgery, Johns Hopkins University School of Medicine, 600 N. Wolfe St., Meyer 5-185A, Baltimore, MD 21287, USA
| | - Edward F McCarthy
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA
| | - A Karim Ahmed
- Department of Neurosurgery, Johns Hopkins University School of Medicine, 600 N. Wolfe St., Meyer 5-185A, Baltimore, MD 21287, USA
| | - Patricia D Pittman
- Department of Neuropathology, Duke University School of Medicine, Durham, NC 27710, USA
| | - Daniel Lubelski
- Department of Neurosurgery, Johns Hopkins University School of Medicine, 600 N. Wolfe St., Meyer 5-185A, Baltimore, MD 21287, USA
| | - C Rory Goodwin
- Department of Neurosurgery, Duke University School of Medicine, Durham, NC 27710, USA
| | - Daniel M Sciubba
- Department of Neurosurgery, Johns Hopkins University School of Medicine, 600 N. Wolfe St., Meyer 5-185A, Baltimore, MD 21287, USA.
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18
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Silva González A, Quinteros Rivas G, Calvo Mena R, Yurac Barrientos R, Marré Pacheco B. Resection of a sacral chordoma aided by neuronavigation: A case report. INTERDISCIPLINARY NEUROSURGERY 2021. [DOI: 10.1016/j.inat.2020.100985] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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19
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Kim KR, Kim KH, Park JY, Shin DA, Ha Y, Kim KN, Chin DK, Kim KS, Cho YE, Kuh SU. Surgical Strategy for Sacral Tumor Resection. Yonsei Med J 2021; 62:59-67. [PMID: 33381935 PMCID: PMC7820448 DOI: 10.3349/ymj.2021.62.1.59] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Revised: 11/17/2020] [Accepted: 11/18/2020] [Indexed: 02/06/2023] Open
Abstract
PURPOSE This study aimed to present our experiences with a precise surgical strategy for sacrectomy. MATERIALS AND METHODS This study comprised a retrospective review of 16 patients (6 males and 10 females) who underwent sacrectomy from 2011 to 2019. The average age was 42.4 years old, and the mean follow-up period was 40.8 months. Clinical data, including age, sex, history, pathology, radiographs, surgical approaches, onset of recurrence, and prognosis, were analyzed. RESULTS The main preoperative symptom was non-specific local pain. Nine patients (56%) complained of bladder and bowel symptoms. All patients required spinopelvic reconstruction after sacrectomy. Three patients, one high, one middle, and one hemi-sacrectomy, underwent spinopelvic reconstruction. The pathology findings of tumors varied (chordoma, n=7; nerve sheath tumor, n=4; giant cell tumor, n=3, etc.). Adjuvant radiotherapy was performed for 5 patients, chemotherapy for three, and combined chemoradiotherapy for another three. Six patients (38%) reported postoperative motor weakness, and newly postoperative bladder and bowel symptoms occurred in 5 patients. Three patients (12%) experienced recurrence and expired. CONCLUSION In surgical resection of sacral tumors, the surgical approach depends on the size, location, extension, and pathology of the tumors. The recommended treatment option for sacral tumors is to remove as much of the tumor as possible. The level of root sacrifice is a predicting factor for postoperative neurologic functional impairment and the potential for morbidity. Pre-operative angiography and embolization are recommended to prevent excessive bleeding during surgery. Spinopelvic reconstruction must be considered following a total or high sacrectomy or sacroiliac joint removal.
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Affiliation(s)
- Kwang Ryeol Kim
- Department of Neurosurgery, International St. Mary's Hospital, Catholic Kwandong University College of Medicine, Incheon, Korea
- Department of Neurosurgery, Spine and Spinal Cord Institute, Gangnam Severance Spine Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - Kyung Hyun Kim
- Department of Neurosurgery, Spine and Spinal Cord Institute, Gangnam Severance Spine Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - Jeong Yoon Park
- Department of Neurosurgery, Spine and Spinal Cord Institute, Gangnam Severance Spine Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - Dong Ah Shin
- Department of Neurosurgery, Spine and Spinal Cord Institute, Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - Yoon Ha
- Department of Neurosurgery, Spine and Spinal Cord Institute, Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - Keung Nyun Kim
- Department of Neurosurgery, Spine and Spinal Cord Institute, Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - Dong Kyu Chin
- Department of Neurosurgery, Spine and Spinal Cord Institute, Gangnam Severance Spine Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - Keun Su Kim
- Department of Neurosurgery, Spine and Spinal Cord Institute, Gangnam Severance Spine Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - Yong Eun Cho
- Department of Neurosurgery, Spine and Spinal Cord Institute, Gangnam Severance Spine Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - Sung Uk Kuh
- Department of Neurosurgery, Spine and Spinal Cord Institute, Gangnam Severance Spine Hospital, Yonsei University College of Medicine, Seoul, Korea
- Department of Neurosurgery, Spine and Spinal Cord Institute, Severance Hospital, Yonsei University College of Medicine, Seoul, Korea.
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20
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Cherix S, Traverso A, Bazan AA, Gallusser N, Heutschi-Ozturk H, Abou-Khalil S, Goetti P, Letovanec I, Montemurro M, Bize P. Image-guided percutaneous cryoablation of unresectable sacrococcygeal chordoma: Feasibility and outcome in a selected group of patients with long term follow-up. J Surg Oncol 2020; 123:497-504. [PMID: 33146425 DOI: 10.1002/jso.26288] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Revised: 09/16/2020] [Accepted: 10/06/2020] [Indexed: 11/06/2022]
Abstract
BACKGROUND Chordoma is a rare malignant tumor of the axial skeleton. Percutaneous cryoablation (PCA) is a minimally invasive technique that allows freezing of tumors under imaging control. The purpose of our retrospective study was to investigate the outcome of PCA in a selected cohort of patients with sacrococcygeal chordoma, with a minimum of 5 years follow-up. MATERIALS AND METHODS Four patients were treated in 10 sessions. The mean follow-up was 57.3 months. We evaluated the feasibility, the procedure-related complications, the impact on pain control and oncological outcomes. RESULTS Freezing of 100% of the tumor volume was possible in 60%. Pain control was not reliably evaluable. Local recurrence occurred in 90% of the treated lesions; the mean time to progression was 8.1 months (range 1.5-16). At last follow-up, one patient had died of the disease, one of another cause and one was receiving the best supportive care. The only patient alive without the disease had received additional carbon-ion radiotherapy. The 5-year survival rate after index PCA was 50%. CONCLUSION Complete freezing of the tumor was technically challenging, mainly due to the complex local anatomy. Recurrence occurred in 90% of the lesions treated. PCA should be considered with caution in the curative management of sacrococcygeal chordoma.
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Affiliation(s)
- Stéphane Cherix
- Department of Orthopaedics and Traumatology, Lausanne University Hospital, University of Lausanne, Lausanne, Switzerland
| | - Aurélien Traverso
- Department of Orthopaedics and Traumatology, Lausanne University Hospital, University of Lausanne, Lausanne, Switzerland
| | - Alexander A Bazan
- Department of Orthopaedics and Traumatology, Lausanne University Hospital, University of Lausanne, Lausanne, Switzerland
| | - Nicolas Gallusser
- Department of Orthopaedics and Traumatology, Lausanne University Hospital, University of Lausanne, Lausanne, Switzerland
| | - Hafize Heutschi-Ozturk
- Department of Orthopaedics and Traumatology, Lausanne University Hospital, University of Lausanne, Lausanne, Switzerland
| | - Sami Abou-Khalil
- Department of Orthopaedics and Traumatology, Lausanne University Hospital, University of Lausanne, Lausanne, Switzerland
| | - Patrick Goetti
- Department of Orthopaedics and Traumatology, Lausanne University Hospital, University of Lausanne, Lausanne, Switzerland
| | - Igor Letovanec
- Department of Pathology, Lausanne University Hospital, University of Lausanne, Lausanne, Switzerland
| | - Michael Montemurro
- Department of Medical Oncology, Lausanne University Hospital, University of Lausanne, Lausanne, Switzerland
| | - Pierre Bize
- Department of Radiodiagnostic and Interventional Radiology, Clinique Genolier, University of Lausanne, Lausanne, Switzerland
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21
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Claxton MR, Shirley MB, Johnson JD, Perry KI, Rose PS, Houdek MT. Hip Arthroplasty Following Subtotal Sacrectomy for Chordoma. In Vivo 2020; 34:2517-2520. [PMID: 32871780 DOI: 10.21873/invivo.12068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Revised: 07/03/2020] [Accepted: 07/13/2020] [Indexed: 11/10/2022]
Abstract
BACKGROUND/AIM Chordomas often affect the sacrum with a high predilection for local-regional recurrence. Patients typically retain their ability to ambulate, and the development of metastatic disease in the periacetabular region can have significant morbidity and pain with ambulation. The purpose of the study was to describe the outcome of patients undergoing a hip arthroplasty following resection of a sacral chordoma. PATIENTS AND METHODS From 1990 to 2015, 84 patients underwent sacrectomy for chordoma, while four of these (5%) patients underwent hip arthroplasty. The most common level of nerve root sacrifice was S2-5 (n=2). The mean time between sacrectomy and hip arthroplasty was 7 years. Indications for arthroplasty included metastatic disease (n=3) and coxarthrosis (n=1). RESULTS Postoperatively two patients ambulated with a gait aid, and no patient had a Trendelenburg gait. The mean Harris Hip Score significantly improved from 49 to 80 postoperatively (p=0.02). CONCLUSION The results of this study indicate that hip arthroplasty is a durable treatment option for patients with metastatic disease or coxarthrosis following subtotal sacrectomy for chordoma.
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Affiliation(s)
| | | | - Joshua D Johnson
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, MN, U.S.A
| | - Kevin I Perry
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, MN, U.S.A
| | - Peter S Rose
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, MN, U.S.A
| | - Matthew T Houdek
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, MN, U.S.A.
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Brown KG, Lee PJ. Algorithms for the surgical management of benign and malignant presacral tumors. SEMINARS IN COLON AND RECTAL SURGERY 2020. [DOI: 10.1016/j.scrs.2020.100762] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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The sacral chordoma margin. EUROPEAN JOURNAL OF SURGICAL ONCOLOGY 2020; 46:1415-1422. [PMID: 32402509 DOI: 10.1016/j.ejso.2020.04.028] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Accepted: 04/15/2020] [Indexed: 11/23/2022]
Abstract
OBJECTIVE Aim of the manuscript is to discuss how to improve margins in sacral chordoma. BACKGROUND Chordoma is a rare neoplasm, arising in half cases from the sacrum, with reported local failure in >50% after surgery. METHODS A multidisciplinary meeting of the "Chordoma Global Consensus Group" was held in Milan in 2017, focusing on challenges in defining and achieving optimal margins in chordoma with respect to surgery, definitive particle radiation therapy (RT) and medical therapies. This review aims to report on the outcome of the consensus meeting and to provide a summary of the most recent evidence in this field. Possible new ways forward, including on-going international clinical studies, are discussed. RESULTS En-bloc tumor-sacrum resection is the cornerstone of treatment of primary sacral chordoma, aiming to achieve negative microscopic margins. Radical definitive particle therapy seems to offer a similar outcome compared to surgery, although confirmation in comparative trials is lacking; besides there is still a certain degree of technical variability across institutions, corresponding to different fields of treatment and different tumor coverage. To address some of these questions, a prospective, randomized international study comparing surgery versus definitive high-dose RT is ongoing. Available data do not support the routine use of any medical therapy as (neo)adjuvant/cytoreductive treatment. CONCLUSION Given the significant influence of margins status on local control in patients with primary localized sacral chordoma, the clear definition of adequate margins and a standard local approach across institutions for both surgery and particle RT is vital for improving the management of these patients.
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Asaad M, Rajesh A, Wahood W, Vyas KS, Houdek MT, Rose PS, Moran SL. Flap reconstruction for sacrectomy defects: A systematic review and meta-analysis. J Plast Reconstr Aesthet Surg 2020; 73:255-268. [DOI: 10.1016/j.bjps.2019.09.049] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2019] [Revised: 08/12/2019] [Accepted: 09/09/2019] [Indexed: 01/16/2023]
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Recurrence or neurological loss? Resection mode selection for patients with large sacral chordoma: an analysis of prognostic factors and quality of life. Acta Neurochir (Wien) 2019; 161:2433-2441. [PMID: 31620873 DOI: 10.1007/s00701-019-04072-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2019] [Accepted: 09/11/2019] [Indexed: 10/25/2022]
Abstract
BACKGROUND Surgical resection represents the main therapeutic method for sacral chordoma, but plans for resection mode must weigh neurological loss against complete tumor excision, a difficult balance to strike. The purpose of this study was to provide useful information contributing to surgical decision making in sacral chordoma. METHODS A retrospective review was performed on 47 patients with large sacral chordoma. Prognostic factors affecting recurrence-free survival (RFS) and overall survival (OS) were analyzed using the Kaplan-Meier method and Cox proportional hazards model. Quality of life was assessed by the Functional Assessment of Cancer Therapy-General (FACT-G) questionnaire and compared using Student's t test. RESULTS Resection mode was the independent prognostic factor affecting RFS, while independent prognostic factors affecting OS were resection mode and postoperative recurrence. As for quality of life, the en bloc resection group showed a higher score in emotional well-being, while the piecemeal resection group scored better in function well-being. No significant difference was identified in total the FACT-G score between two groups. CONCLUSIONS On the one hand, en bloc resection showed huge advantages in disease control for sacral chordoma. On the other hand, despite the unsatisfaction in functional well-being, en bloc resection did not sacrifice quality of life significantly in terms of the total FACT-G score.
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Pennington Z, Westbroek EM, Ahmed AK, Cottrill E, Lubelski D, Goodwin ML, Sciubba DM. Surgical management of giant presacral schwannoma: systematic review of published cases and meta-analysis. J Neurosurg Spine 2019; 31:711-722. [PMID: 31277062 DOI: 10.3171/2019.4.spine19240] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2019] [Accepted: 04/19/2019] [Indexed: 12/18/2022]
Abstract
OBJECTIVE Giant presacral schwannomas are rare sacral tumors found in less than 1 of every 40,000 hospitalizations. Current management of these tumors is based solely upon case reports and small case series. In this paper the authors report the results of a systematic review of the available English literature on presacral schwannoma, focused on identifying the influence of tumor size, tumor morphology, surgical approach, and extent of resection (EOR) on recurrence-free survival and postoperative complications. METHODS The medical literature (PubMed and EMBASE) was queried for reports of surgically managed sacral schwannoma, either involving 2 or more contiguous vertebral levels or with a diameter ≥ 5 cm. Tumor size and morphology, surgical approach, EOR, intraoperative and postoperative complications, and survival data were recorded. RESULTS Seventy-six articles were included, covering 123 unique patients (mean age 44.1 ± 1.4 years, 50.4% male). The most common presenting symptoms were leg pain (28.7%), lower back pain (21.3%), and constipation (15.7%). Most surgeries used an open anterior-only (40.0%) or posterior-only (30%) approach. Postoperative complications occurred in 25.6% of patients and local recurrence was noted in 5.4%. En bloc resection significantly improved progression-free survival relative to subtotal resection (p = 0.03). No difference existed between en bloc and gross-total resection (GTR; p = 0.25) or among the surgical approaches (p = 0.66). Postoperative complications were more common following anterior versus posterior approaches (p = 0.04). Surgical blood loss was significantly correlated with operative duration and tumor volume on multiple linear regression (both p < 0.001). CONCLUSIONS Presacral schwannoma can reasonably be treated with either en bloc or piecemeal GTR. The approach should be dictated by lesion morphology, and recurrence is infrequent. Anterior approaches may increase the risk of postoperative complications.
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Chinder PS, Hindiskere S, Doddarangappa S, Sk R, Mascarenhas A, Pal U. Robotic Surgery Assisted Staged En-Bloc Sacrectomy for Sacral Chordoma: A Case Report. JBJS Case Connect 2019; 9:e0240. [PMID: 31140987 DOI: 10.2106/jbjs.cc.18.00240] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
CASE Two male patients aged 37 years and 39 years, diagnosed with sacral chordoma, underwent robotic-assisted preparatory adhesiolysis from the anterior aspect of the tumor, followed by posterior en-bloc partial sacrectomy. The average total operative time was 360 minutes (anterior docking + anterior console + posterior excision), and mean blood loss was 930 mL. Both patients were mobilized early, had no postoperative complications, and were free of local recurrence at 18 month of follow-up. CONCLUSIONS Robotic-assisted surgery is a novel, valid, safe, and minimally invasive technique which drastically reduces the associated surgical complications of single-staged posterior sacrectomy, resulting in excellent functional and oncological outcome.
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Affiliation(s)
- Pramod S Chinder
- Department of Musculoskeletal Oncology, HCG Hospital, Bangalore, India
| | - Suraj Hindiskere
- Department of Musculoskeletal Oncology, HCG Hospital, Bangalore, India
| | | | - Raghunath Sk
- Department of Uro Oncology. HCG Hospital, Bangalore, India
| | | | - Utkarsh Pal
- Department of Musculoskeletal Oncology, HCG Hospital, Bangalore, India
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Ozturk AM, Ozer MA, Suer O, Derin O, Govsa F, Kececi B, Sabah D. Patient-Specific Three-Dimensional Model for a Safe Surgical Pathway in Sacral Chondrosarcoma. Indian J Surg Oncol 2018; 10:107-114. [PMID: 30948884 DOI: 10.1007/s13193-018-0851-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2018] [Accepted: 11/29/2018] [Indexed: 12/29/2022] Open
Abstract
Sacral tumors are amongst the most challenging procedures to treat because of the complex anatomy. This study determined whether patient-specific models change preoperative planning decisions made in preparation for en bloc resection of complex sacral mass surgical procedures. Imaging showed a big encapsulated mass at the S2-3 level involving the neural foramina and obscuring the nerve roots. High-resolution images were acquired and utilized to generate a patient-specific 3D tumor model. The visual and tactile inspection of 3D models allowed the best anatomical understanding, with faster and clearer comprehension of the surgical anatomy. The 3D sacral model was for observation of previously unapparent anatomical details; with this new technology, surgeon can observe their planned surgical intervention, explore the patient-specific anatomy and extension of the tumor, and sharpen their procedure choices. Moreover, multiple planes showed how far the angles on the plane would extend for osteotomy of the sacrum. Another result was identifying correct guides and safe venture landmarks. The study helped to establish safe osteotomy line wherever the nerve roots were retained and enabled osteotomy by preserving bilaterally the S1 and S2 nerve roots for wide excision of wide excision of primary sacral tumor to get adequate bowel and bladder functions. Finally, it helped to determine whether or not the remaining bone in the sacrum is sufficient for spinopelvic stability and needed fixation. It was decided spinopelvic fixation was not necessary for this case. Surgical intervention of sacral tumors varies depending on the tumor, its size, extension, and location. Surgery can have profound risks including unnecessary nerve root resection spinopelvic instability and suboptimal oncological resection. 3D models help to transfer complex anatomical information to clinicians and provide guidance in the preoperative planning stage, for intraoperative navigation and for surgical training purposes.
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Affiliation(s)
- Anil Murat Ozturk
- 1Department of Orthopaedic Surgery, Faculty of Medicine, Ege University, Izmir, Turkey
| | - Mehmet Asim Ozer
- 2Digital Imaging and 3D Modelling Laboratory Department of Anatomy, Faculty of Medicine, Ege University, Izmir, Turkey
| | - Onur Suer
- 1Department of Orthopaedic Surgery, Faculty of Medicine, Ege University, Izmir, Turkey
| | - Okan Derin
- 2Digital Imaging and 3D Modelling Laboratory Department of Anatomy, Faculty of Medicine, Ege University, Izmir, Turkey
| | - Figen Govsa
- 2Digital Imaging and 3D Modelling Laboratory Department of Anatomy, Faculty of Medicine, Ege University, Izmir, Turkey.,3Ege Üniversitesi Tıp Fakültesi Anatomi Anabilim Dalı, TR-35100 Izmir, Turkey
| | - Burcin Kececi
- 1Department of Orthopaedic Surgery, Faculty of Medicine, Ege University, Izmir, Turkey
| | - Dundar Sabah
- 1Department of Orthopaedic Surgery, Faculty of Medicine, Ege University, Izmir, Turkey
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Cryosurgery in the excision of a giant local recurrent sacral chordoma: a case report and literature review. EUROPEAN SPINE JOURNAL : OFFICIAL PUBLICATION OF THE EUROPEAN SPINE SOCIETY, THE EUROPEAN SPINAL DEFORMITY SOCIETY, AND THE EUROPEAN SECTION OF THE CERVICAL SPINE RESEARCH SOCIETY 2018; 27:3059-3063. [DOI: 10.1007/s00586-017-5438-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/13/2017] [Revised: 11/27/2017] [Accepted: 12/16/2017] [Indexed: 10/18/2022]
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Abstract
Chordoma is a locally aggressive primary malignancy of the axial skeleton. The gold standard for treatment is en bloc resection, with some centers now advocating for the use of radiation to help mitigate the risk of recurrence. Local recurrence is common, and salvaging local failures is quite difficult. Chemotherapy has been ineffective and small molecule targeted therapy has had only marginal benefits in small subsets of patients with rare tumor phenotypes or refractory disease. Recent successes utilizing immunotherapy in a variety of cancers has led to a resurgence of interest in modifying the host immune system to develop new ways to treat tumors. This review will discuss these studies and will highlight the early studies employing immune strategies for the treatment of chordoma.
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Affiliation(s)
- Shalin S Patel
- Department of Orthopaedic Surgery, Massachusetts General Hospital Harvard Medical School, 55 Fruit Street Yawkey Building Suite 3A, Boston, MA, 02114-2696, USA
| | - Joseph H Schwab
- Department of Orthopaedic Surgery, Massachusetts General Hospital Harvard Medical School, 55 Fruit Street Yawkey Building Suite 3A, Boston, MA, 02114-2696, USA.
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Sarabia-Estrada R, Ruiz-Valls A, Shah SR, Ahmed AK, Ordonez AA, Rodriguez FJ, Guerrero-Cazares H, Jimenez-Estrada I, Velarde E, Tyler B, Li Y, Phillips NA, Goodwin CR, Petteys RJ, Jain SK, Gallia GL, Gokaslan ZL, Quinones-Hinojosa A, Sciubba DM. Effects of primary and recurrent sacral chordoma on the motor and nociceptive function of hindlimbs in rats: an orthotopic spine model. J Neurosurg Spine 2017; 27:215-226. [PMID: 28598292 DOI: 10.3171/2016.12.spine16917] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
OBJECTIVE Chordoma is a slow-growing, locally aggressive cancer that is minimally responsive to conventional chemotherapy and radiotherapy and has high local recurrence rates after resection. Currently, there are no rodent models of spinal chordoma. In the present study, the authors sought to develop and characterize an orthotopic model of human chordoma in an immunocompromised rat. METHODS Thirty-four immunocompromised rats were randomly allocated to 4 study groups; 22 of the 34 rats were engrafted in the lumbar spine with human chordoma. The groups were as follows: UCH1 tumor-engrafted (n = 11), JHC7 tumor-engrafted (n = 11), sham surgery (n = 6), and intact control (n = 6) rats. Neurological impairment of rats due to tumor growth was evaluated using open field and locomotion gait analysis; pain response was evaluated using mechanical or thermal paw stimulation. Cone beam CT (CBCT), MRI, and nanoScan PET/CT were performed to evaluate bony changes due to tumor growth. On Day 550, rats were killed and spines were processed for H & E-based histological examination and immunohistochemistry for brachyury, S100β, and cytokeratin. RESULTS The spine tumors displayed typical chordoma morphology, that is, physaliferous cells filled with vacuolated cytoplasm of mucoid matrix. Brachyury immunoreactivity was confirmed by immunostaining, in which samples from tumor-engrafted rats showed a strong nuclear signal. Sclerotic lesions in the vertebral body of rats in the UCH1 and JHC7 groups were observed on CBCT. Tumor growth was confirmed using contrast-enhanced MRI. In UCH1 rats, large tumors were observed growing from the vertebral body. JHC7 chordoma-engrafted rats showed smaller tumors confined to the bone periphery compared with UCH1 chordoma-engrafted rats. Locomotion analysis showed a disruption in the normal gait pattern, with an increase in the step length and duration of the gait in tumor-engrafted rats. The distance traveled and the speed of rats in the open field test was significantly reduced in the UCH1 and JHC7 tumor-engrafted rats compared with controls. Nociceptive response to a mechanical stimulus showed a significant (p < 0.001) increase in the paw withdrawal threshold (mechanical hypalgesia). In contrast, the paw withdrawal response to a thermal stimulus decreased significantly (p < 0.05) in tumor-engrafted rats. CONCLUSIONS The authors developed an orthotopic human chordoma model in rats. Rats were followed for 550 days using imaging techniques, including MRI, CBCT, and nanoScan PET/CT, to evaluate lesion progression and bony integrity. Nociceptive evaluations and locomotion analysis were performed during follow-up. This model reproduces cardinal signs, such as locomotor and sensory deficits, similar to those observed clinically in human patients. To the authors' knowledge, this is the first spine rodent model of human chordoma. Its use and further study will be essential for pathophysiology research and the development of new therapeutic strategies.
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Affiliation(s)
| | | | - Sagar R Shah
- Department of Neurologic Surgery, Mayo Clinic, Jacksonville, Florida.,Biomedical Engineering, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | | | - Alvaro A Ordonez
- Pediatrics, Center for Infection and Inflammation Imaging Research
| | | | | | - Ismael Jimenez-Estrada
- Department of Physiology, Biophysics, and Neurosciences, Research Center for Advanced Studies IPN, Mexico City, Mexico
| | | | | | - Yuxin Li
- Department of Neurosurgery, Jinan General Hospital of PLA, Jinan, China
| | | | | | | | - Sanjay K Jain
- Pediatrics, Center for Infection and Inflammation Imaging Research
| | | | - Ziya L Gokaslan
- Department of Neurosurgery, The Warren Alpert Medical School of Brown University, Providence, Rhode Island; and
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