Patients with peripheral primary bone tumours are often identified and referred at an early stage to a regional tumour service according to established guidelines. In patients with primary bone tumours of the spine, however, the definitive management or outcome of such patients is being prejudiced by preliminary intervention from non-specialist services prior to their referral. Objective: To audit the standards of management of patients with primary bone tumours of the spine referred to a regional tumour service. Retrospective review of case notes and radiology. Subjects: Patients with primary bone tumour of the spine managed at the Orthopaedic Spine Unit with the Regional Bone Tumour Service in Newcastle Upon Tyne Hospitals NHS Trust. Referral to tumour service, prior intervention, operative treatment, survival, factors affecting definitive management. 31 of 39 (16 benign, 23 malignant) patients were initially referred from primary care to services other than the regional tumour service, most commonly neurosurgery (11/39) and paediatric oncology (4/39). Seven of 39 of these patients had undergone interventions prior to their referral to the tumour service, which may have negatively impacted their definitive management or curative surgery. These tumours present complex issues regarding their definitive management to optimise outcome. Closer links between departments are required to enable the multidisciplinary management of primary bone tumours of the spine. Prior surgical intervention may compromise cure. Those involved in their management should be encouraged to liaise with their regional bone tumour service to improve outcome

Aim. To identify patterns in referral and the management pathway of patients with primary bone tumours of the spine referred to the Orthopaedic Spine Unit in order to recommend ways to improve the service. Methods and Results. A retrospective notes and imaging review to evaluate the referral pathway undertaken by patients ending up in the orthopaedic spine unit over a 5 year period according to the recommendations for primary bone tumours. Significant events leading to potential improvement in outcomes were assessed. Recommendations for improvements are suggested. None of the 38 patients evaluated were referred within two weeks of presentation, and only 6 were referred directly to the bone tumour service. Almost half (15/32) of the patients who had an indirect referral pathway had a prior intervention. Five of these had non-surgical, while 10 had surgical interventions outside the tumour centre before their referral. Of these, seven had malignant tumours. Conclusion. In order to optimise outcome, patients with potentially malignant primary tumours of the spine should be referred directly to tumour services. Prior procedures should be limited to biopsy procedures and discussed with the tumour service before this is undertaken having appropriate investigation and imaging available. Guidelines for this should be directed at streamlining the referral pathway and encouraging communication between stakeholders. Further research should assess the impact of patient-related delay in presentation contributes to overall delay in referral to tumour service; how early radiological assessment may augment timely referral; and how indirect referral and prior intervention affect patient outcomes

Aims

The aim of this study was to investigate the incidence and characteristics of instrumentation failure (IF) after total en bloc spondylectomy (TES), and to analyze risk factors for IF.

Introduction. Aneurysmal bone cysts are uncommon benign lesions affecting the spinal column. They mostly occur in the lumbar spine and have a propensity to affect adjacent vertebrae. We describe 14 aneurysmal bone cysts affecting the spinal column from the Scottish Bone Tumour Registry with regard to assess the incidence, demography, biological behaviour and recurrence rate. Materials and Methods. We identified 14 patients with aneurysmal bone cysts affecting the spinal column. Case notes and radiographs were retrospectively reviewed from the Scottish Bone Tumour registry. Results. There were 9 female and 5 male patients. The mean age at presentation was 24.5 years (range, 6 to 62 years). The spinal location consisted of cervical (3), thoracic (4), lumbar (6) and sacral (1). The treatment included curettage without bone grafting (3), excision (7) and surgical removal with biopsy in rest. Selective angiographic embolisation was carried out in one patient with a cervical cyst and percutaneous sclerotherapy was carried out on another with a sacral cyst. There were two recurrences, of which one was treated with radiotherapy and other with repeat curettage with successful final outcome. Conclusions. The incidence of aneurysmal bone cysts was 5.5% in our registry of all the spine tumours. The recurrence occurred in 14% (2 of 14). In addition to surgery, one should be aware of the role of angiographic embolisation and radiotherapy in selected primary and recurrent ABCs

Sacro-coccygeal chordomas pose a difficult diagnostic and therapeutic problem due to late presentation, large size, soft-tisue extension, difficulties in obtaining adequate resection margins, higher local recurrence rate and uncertain effectiveness of adjuvant treatment. We present a series of 21 patients of sacral chordomas obtained from Scottish Bone Tumour Registry to analyse predictors of local control and survival. The clinical and morphologic features, type of treatment and follow-up of 21 consecutive patients with sacral chordoma were retrospectively reviewed and analysed. The data were obtained from Scottish Bone Tumour Registry. The average age at time of the biopsy was 59 years (range, 12 to 82 years): twelve patients were male and nine were female. Pain was the presenting symptom in all patients. Two had intralesional (both recurred), 9 marginal (4 recurred) and 3 wide resections (1 recurred). Fifteen of the twenty-one patients were treated with adjuvant radiation therapy. In seven patients, the chordoma was inoperable and all but one were treated with adjuvant radiotherapy. Local recurrence and metastases occurred in 7 (50%) and 5 (23.8%) patients. The 5-year and 10-year survival were 38% and 14.2%, respectively. Excision of the lesion combined with adjuvant radiation therapy provided satisfactory results. Local recurrence presents a major problem in the management of sacral chordomas (50%). Intralesional resection should be avoided as it is associated with 100% local recurrence in our series

Chondrosarcomas are uncommon primary malignant cartilaginous tumours, even less common in spine. Surgical excision is the only mode of successful treatment as these tumours are resistant to conventional chemotherapy and radiation therapy. We share our experience of 22 cases of chondrosarcomas of the spine with special reference to their recurrence and survival. We identified 20 conventional and 2 dedifferentiated chondrosarcomas from the Scottish Bone Tumour Registry database between 1964 and 2009. Radiology and histopathology were documented. The mean follow-up was 5.2 years. There were 14 men and 8 women with a mean age of 50.1 years. There were 7 under the age of 40 years (31.8%). The majority of lesions occurred in the thoracic spine (16), followed by sacrum (3), lumbar (2) and cervical spine (1). The overall local recurrence rate was 45.4% (10/22 cases-once in 5, twice in 2 and thrice in 3 patients). Four patients presented with pulmonary metastases leading to death. The estimated overall 5- and 10-year survival rates were 31.8% and 18.1% respectively. We found that 1/3. rd. of chondrosarcomas of the spine occured below 40 years of age and 3/4. th. in the thoracic spine. Every other case was associated with local recurrence with a 32% 5-year and 18% 10-year survival rates

Statement of purpose. We review the current state of development of proton therapy and the implications for beam therapy in the management of primary bone tumours. Introduction. The principle of radiotherapy is to deliver a high dose, accurately, to the tumour. Conventional photon and proton therapy irradiates adjacent tissue significantly. This is reduced with intensity modulated proton therapy (IMPT). This has been demonstrably effective in treating tumours refractory to chemotherapy and conventional radiotherapy such as chrondrosarcomas and chordomas. Case Report. We present a patient with an isolated chondrosarcoma involving the anterior and posterior element of the L3 vertebral body with a significant soft tissue component displacing the IVC. The patient underwent a 2 stage en-bloc excision of the tumour: Stabilization was achieved by posterior L2-4 instrumented fusion with PEEK rods, an anterior PEEK cage and bone graft. Post-operatively the patient underwent 12 weeks of bed rest followed by rehabilitation. Due to pedicle involvement (giving a high risk of contamination) and the narrow clear margin found on histology the patient has been accepted for post-operative IMPT. Discussion. The high risk of contamination and the narrow margins presented an ideal case for post-operative IMPT. However, conventionally the stabilization would have been metallic, distorting the treatment mapping and the delivery of the IMPT, reducing any possible benefit. Thus, we used PEEK as it is proven to maintain its properties when subjected to a wide range of conditions while also being tolerant of, and not interfering with, most forms of radiation including proton therapy, maximising the chance of a positive outcome. One concern is that PEEK is less biomechanically stable then metal, hence the prolonged period of bed rest. Conclusion. This report discusses the current evidence for proton therapy while describing a successful technique for stabilization to facilitate delivery of proton treatment post-operatively

To evaluate functional and oncological outcomes following resection of primary malignant bone tumours. Primary malignant tumours of the sacrum are rare, arising from bony or neural elements, or bone marrow in haematological malignancies. Management of these lesions is dictated by anatomical considerations and the behaviour of tumours. The three key issues which arise are the adequacy of tumour resection, mechanical stabilisation and the need for colostomy. A retrospective review of the surgical management of primary malignant sacral tumours from 2004 - 2009. The study included 46 patients (34 males, 12 females) with an average age of 49 (range 7 – 82). Median duration of symptoms before presentation was 26 months. 10 patients had inoperable tumours at presentation. 6 patients had chemotherapy. 2 patients opted for palliative radiotherapy. 1 patient was unfit for surgery. 25 patients (54%) underwent surgical resection. 8 underwent instrumented stabilisations with fibula strut graft vs. 17 uninstrumented. Colostomy was performed in 10 patients (40%). Mean follow post-operatively was 19.0 months. Wound healing problems were present in 5/25 (20%). There was no difference in infection rates between definitive surgery with and without colostomy. Mechanical failure of stabilisation was noted in 75%. There was one peri-operative death. Local recurrence occurred in 12%(3/25) of operated patients although follow-up period was noted to be short. Mechanical stabilisation for extensive lesions in the sacrum are particularly challenging in tumour surgery. Despite radiological failure in 7/8 instrumented stabilisations, patients were relatively asymptomatic and only 1/8 required revision stabilisation surgery. Ethics approval: None: Audit Interest Statement: None

Introduction. Spinal osteosarcomas are quite rare and the optimal treatment strategy is unknown. We report a series of 9 cases of osteosarcoma of the spine treated with intralesional resection and adjuvant combination therapy in order to evaluate their clinico-pathological correlation, recurrence rate and survival. Materials and Methods. Between 1980 and 2009, nine histologically confirmed cases of primary conventional osteogenic sarcoma of the spine were identified from Scottish Bone Tumour Registry. This prospectively collected registry database was retrospectively reviewed. Results. There were 9 cases with male predominance (77.7%) at a median age of 39 years (range, 16 – 73 years) and were anatomically distributed as 2-cervical, 6-thoracic, 1-lumbar and 1-sacral. Local and distant staging and histological grading was carried out in all. Seven patients underwent intralesional (including open biopsies) and 2 marginal resections. Seven patients received adjuvant chemotherapy and 8 adjuvant radiotherapy. The overall local recurrence rate was 66.6%. All but one patient died of the disease with a median length of survival of 30 months. The 2-year and 5-year survival rates were 66.6% and 22.2% respectively. Two patients who survived more than 5 years were male patients below the age of 40 years involving thoracic spine (one had a marginal resection without receiving any adjuvant therapy subsequently had a recurrence; other one underwent intralesional resection with adjuvant chemo- and radiotherapy, died with no evidence of disease). Conclusions. Spinal osteosarcoma in Scottish patients showed a higher median age, thoracic spine and male gender predilection with overall poor prognosis. Local recurrence did not affect the survival adversely, however patients older than 40 years and metastases at presentation showed poor survival compared to age under 40 and non-metastatic presentations

Chordomas are slowly growing, locally aggressive primary malignant neoplasms derived from primitive notochordal cells. They tend to occur at the extreme of ages and at the two ends of the spinal column. The purpose of this study was to evaluate the presentation, morphology and behaviour of 20 non-clival, non-sacral chordoma cases. Details of 20 cases of histologically confirmed Chordomas of the mobile spine (Cervical-7, Thoracic-7, Lumbar-6) between 1967 and 2006, were extracted from the Scottish Bone Tumour Registry. The casenotes and radiographs were retrospectively reviewed. Non-sacral chordomas comprised 48.7% (20/41 cases) of total chordomas registered. There was a slight feminine predominance (11/20 cases). Mean age was 58.1 years (range, 12 to 82 years). Progressively worsening back pain was the first symptom in all the patients. Seven had intra-lesional (five recurred), six marginal (1 recurred) and 2 wide resections (none recurred). Eleven of the twenty-one patients were treated with adjuvant radiation therapy. In five patients, the chordoma was inoperable and all but one were treated with radiotherapy. There were 2 recurrences in the group of patients treated without adjuvant radiotherapy. Six patients (40%) developed local recurrences and 3 patients (15%) developed metastases. There were 4 survivors including one with local recurrence. Sixteen patients died including 3 with metastases, 7 with persistent primary disease, 1 with local recurrence and 5 with no evidence of disease or died of unrelated causes. Median survival was 19 months (mean-30.2 months), with 5- and 10-year survival rates 10% and 0.0% respectively. We found that non-sacral/non-clival chordomas had a much poorer prognosis than published in the literature. Local recurrences occurred in 40%. Intra-lesional resection should be avoided as it is associated with 71.4% local recurrence in our series

Statement of purpose. We review the current state of development of proton therapy and the implications for beam therapy in the management of primary bone tumours. Introduction. The principle of radiotherapy is to deliver a high dose, accurately, to the tumour. Conventional photon and proton therapy irradiates adjacent tissue significantly. This is reduced with intensity modulation proton therapy (IMPT). This has been demonstrably effective in treating tumours refractory to chemotherapy and conventional radiotherapy such as chrondrosarcomas and chordomas. Case Report. We present a patient with an isolated chondrosarcoma involving the anterior and posterior element of the L3 vertebral body with a significant soft tissue component displacing the IVC. The patient underwent a 2 stage en-bloc excision of the tumour: Stabilisation was achieved by posterior L2-4 instrumented fusion with Peek rods and screws, an anterior Peek cage and bone graft. Post-operatively the patient underwent 12 weeks of bed rest followed by rehabilitation. Due to pedicle involvement (giving a high risk of contamination) and the narrow clear margin found on histology the patient has been accepted for post-operative IMPT. Discussion. The high risk of contamination and the narrow margins presented an ideal case for post-operative IMPT. However, conventionally the stabilisation would have been metallic, distorting the treatment mapping and the delivery of the IMPT, reducing any possible benefit. Thus, we used Peek as it is proven to maintain its properties when subjected to a wide range of conditions while also being tolerant of, and not interfering with, most forms of radiation including proton therapy, maximising the chance of a positive outcome. One concern with Peek is that it is less biomechanically stable then metal, hence the prolonged period of bed rest. Conclusion. This report discusses the current evidence for proton therapy while describing a successful technique for stabilisation to facilitate delivery of proton treatment post-operatively. Ethics approval. None Audit/service standard in trust Ethics committee COREC number:. Interest Statement. None Local grant/National grant Commercial/industry support

Back pain is a common symptom in children and adolescents. Here we review the important causes, of which defects and stress reactions of the pars interarticularis are the most common identifiable problems. More serious pathology, including malignancy and infection, needs to be excluded when there is associated systemic illness. Clinical evaluation and management may be difficult and always requires a thorough history and physical examination. Diagnostic imaging is obtained when symptoms are persistent or severe. Imaging is used to reassure the patient, relatives and carers, and to guide management.

Cite this article: Bone Joint J 2014;96-B:717–23.

This is a prospective randomised study comparing the clinical and radiological outcomes of uni- and bipedicular balloon kyphoplasty for the treatment of osteoporotic vertebral compression fractures. A total of 44 patients were randomised to undergo either uni- or bipedicular balloon kyphoplasty. Self-reported clinical assessment using the Oswestry Disability Index, the Roland-Morris Disability questionnaire and a visual analogue score for pain was undertaken pre-operatively, and at three and twelve months post-operatively. The vertebral height and kyphotic angle were measured from pre- and post-operative radiographs. Total operating time and the incidence of cement leakage was recorded for each group.

Both uni- and bipedicular kyphoplasty groups showed significant within-group improvements in all clinical outcomes at three months and twelve months after surgery. However, there were no significant differences between the groups in all clinical and radiological outcomes. Operating time was longer in the bipedicular group (p < 0.001). The incidence of cement leakage was not significantly different in the two groups (p = 0.09).

A unipedicular technique yielded similar clinical and radiological outcomes as bipedicular balloon kyphoplasty, while reducing the length of the operation. We therefore encourage the use of a unipedicular approach as the preferred surgical technique for the treatment of osteoporotic vertebral compression fractures.

Cite this article: Bone Joint J 2013;95-B:401–6.

We have treated 175 patients with a chordoma over a ten-year period. Only two had a family history of the condition and we describe these in this paper. In one patient the tumour was at the craniocervical junction and in the other the lesion affected the sacrum. We have undertaken a literature review of familial chordoma and have identified chromosomal abnormalities associated with the condition.

We report the results of vertebral column resection (VCR) for paediatric patients with spinal deformity. A total of 49 VCRs in paediatric patients from four university hospitals between 2005 and 2009 with a minimum two-year follow-up were retrospectively identified. After excluding single hemivertebral resections (n = 25) and VCRs performed for patients with myelomeningocele (n = 6), as well as spondylectomies performed for tumour (n = 4), there were 14 patients who had undergone full VCR at a mean age of 12.3 years (6.5 to 17.9). The aetiology was congenital scoliosis in five, neuromuscular scoliosis in three, congenital kyphosis in two, global kyphosis in two, adolescent idiopathic scoliosis in one and secondary scoliosis in one. A total of seven anteroposterior and seven posterolateral approaches were used.

The mean major curve deformity was 86° (67° to 120°) pre-operatively and 37° (17° to 80°) at the two-year follow-up; correction was a mean of 54% (18% to 86%) in the anteroposterior and 60% (41% to 70%) in the posterolateral group at the two-year follow-up (p = 0.53). The mean Scoliosis Research Society-24 total scores were 100 (92 to 108) for the anteroposterior and 102 (95 to 105) for the posterolateral group. There was one paraparesis in the anteroposterior group necessitating urgent re-decompression, with a full recovery.

Patients undergoing VCR are highly satisfied after a successful procedure.