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The Bone & Joint Journal
Vol. 106-B, Issue 12 | Pages 1469 - 1476
1 Dec 2024
Matsuo T Kanda Y Sakai Y Yurube T Takeoka Y Miyazaki K Kuroda R Kakutani K

Aims

Frailty has been gathering attention as a factor to predict surgical outcomes. However, the association of frailty with postoperative complications remains controversial in spinal metastases surgery. We therefore designed a prospective study to elucidate risk factors for postoperative complications with a focus on frailty.

Methods

We prospectively analyzed 241 patients with spinal metastasis who underwent palliative surgery from June 2015 to December 2021. Postoperative complications were assessed by the Clavien-Dindo classification; scores of ≥ Grade II were defined as complications. Data were collected regarding demographics (age, sex, BMI, and primary cancer) and preoperative clinical factors (new Katagiri score, Frankel grade, performance status, radiotherapy, chemotherapy, spinal instability neoplastic score, modified Frailty Index-11 (mFI), diabetes, and serum albumin levels). Univariate and multivariate analyses were developed to identify risk factors for postoperative complications (p < 0.05).


The Bone & Joint Journal
Vol. 103-B, Issue 10 | Pages 1641 - 1641
1 Oct 2021
Matsumoto T Takayama K Ishida K Hayashi S Hashimoto S Kuroda R


The Bone & Joint Journal
Vol. 102-B, Issue 12 | Pages 1709 - 1716
1 Dec 2020
Kanda Y Kakutani K Sakai Y Yurube T Miyazaki S Takada T Hoshino Y Kuroda R

Aims

With recent progress in cancer treatment, the number of advanced-age patients with spinal metastases has been increasing. It is important to clarify the influence of advanced age on outcomes following surgery for spinal metastases, especially with a focus on subjective health state values.

Methods

We prospectively analyzed 101 patients with spinal metastases who underwent palliative surgery from 2013 to 2016. These patients were divided into two groups based on age (< 70 years and ≥ 70 years). The Eastern Cooperative Oncology Group (ECOG) performance status (PS), Barthel index (BI), and EuroQol-5 dimension (EQ-5D) score were assessed at study enrolment and at one, three, and six months after surgery. The survival times and complications were also collected.


The Bone & Joint Journal
Vol. 99-B, Issue 5 | Pages 640 - 646
1 May 2017
Matsumoto T Takayama K Ishida K Hayashi S Hashimoto S Kuroda R

Aims

The aim of this study was to compare the post-operative radiographic and clinical outcomes between kinematically and mechanically aligned total knee arthroplasties (TKAs).

Patients and Methods

A total of 60 TKAs (30 kinematically and 30 mechanically aligned) were performed in 60 patients with varus osteoarthritis of the knee using a navigation system. The angles of orientation of the joint line in relation to the floor, the conventional and true mechanical axis (tMA) (the line from the centre of the hip to the lowest point of the calcaneus) were compared, one year post-operatively, on single-leg and double-leg standing long leg radiographs between the groups. The range of movement and 2011 Knee Society Scores were also compared between the groups at that time.