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Bone & Joint Research
Vol. 5, Issue 6 | Pages 232 - 238
1 Jun 2016
Knee extension strength and post-operative functional prediction in quadriceps resection for soft-tissue sarcoma of the thigh
Tanaka A Yoshimura Y Aoki K Kito M Okamoto M Suzuki S Momose T Kato H
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Objectives

Our objective was to predict the knee extension strength and post-operative function in quadriceps resection for soft-tissue sarcoma of the thigh.

Methods

A total of 18 patients (14 men, four women) underwent total or partial quadriceps resection for soft-tissue sarcoma of the thigh between 2002 and 2014. The number of resected quadriceps was surveyed, knee extension strength was measured with the Biodex isokinetic dynamometer system (affected side/unaffected side) and relationships between these were examined. The Musculoskeletal Tumor Society (MSTS) score, Toronto Extremity Salvage Score (TESS), European Quality of Life-5 Dimensions (EQ-5D) score and the Short Form 8 were used to evaluate post-operative function and examine correlations with extension strength. The cutoff value for extension strength to expect good post-operative function was also calculated using a receiver operating characteristic (ROC) curve and Fisher’s exact test.

Orthopaedic Proceedings
Vol. 84-B, Issue SUPP_III | Pages 230 - 230
1 Nov 2002
THE VALIDITY OF PEDICLE SCREW FIXATION IN SURGICAL TREATMENT OF SPINE INFECTIONS
Yamamoto T Miyauchi A Iwasaki M Suzuki S
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Purposes: To evaluate the validity of pedicle screw fixation in 20 patients with toracolumbar spine infections.

Methods and Materials: There were seven tuberculous and thirteen pyogenic infection, eight had thoracic and 12 had lumbar lesion. The indications for surgical treatment were; progressive bone destruction, mal-alignment or neurological deficit. On nine cases, we did two-step operation, which was bone graft from anterior and pedicle screw fixation from posterior. On 11 cases, we did debridement, interbody graft and the pedicle screw fixation from posterior simultaneously. We examined the outcomes of the infection, symptoms including neurological deficit and the graft bones postoperatively with follow-up period of 25 months in the average. We also examined changes of alignment after surgery and surgical complications as well to evaluate the validity of the surgery.

Results: Fusion of graft were confirmed in all cases within seven and half months in the average. Clinically, all of 14 patients who had had paraparesis gained neurological recovery of one or two steps of Frankel’s criteria after the surgery. Complications were, fracture of graft, fracture of vertebral body, screw loosening with alignment deterioration and recurrence of infection in one case each.

Summary: Pedicle screw fixation revealed a usefulness in surgical treatment of spine infection.