Transcutaneous osseointegration has emerged as a transformative approach for amputees, providing a promising alternative to traditional socket prostheses. A recent study by Hoellwarth et al., published in JBJS Open Access, investigates the outcomes of transfemoral osseointegration (TOFA) specifically for patients with well-controlled diabetes mellitus (DM). This pioneering work explores the potential of TOFA to improve mobility and quality of life (QoL) in a population often considered at high risk for complications.
Study Overview
The study retrospectively analyzed 17 patients with well-managed DM who underwent unilateral transfemoral osseointegration between 2013 and 2019 at Macquarie University Hospital in Australia. All patients had a follow-up period of at least two years, during which perioperative outcomes, mobility metrics, and QoL changes were evaluated.
Key Findings
1. Safety and Complications:
• No systemic perioperative complications, deaths, or proximal amputations occurred.
• 47% of patients required additional surgeries, including soft-tissue refashioning, debridement, or implant revision for aseptic loosening or infection.
• Two patients experienced periprosthetic fractures, both of which were successfully managed with internal fixation.
2. Mobility Improvements:
• The percentage of patients wearing their prosthesis for at least eight hours daily increased from 36% to 79%.
• Functional mobility, as measured by K-levels, improved significantly, with 94% achieving at least K-level 2 postoperatively (compared to 6% preoperatively).
3. Quality of Life:
• QoL scores improved across all categories of the Questionnaire for Persons with a Transfemoral Amputation, although these changes were not statistically significant.
Conclusions
The study concludes that well-controlled DM should not be a blanket contraindication for TOFA. While additional surgeries for complications were common, the significant improvements in mobility and QoL underscore the procedure’s potential benefits. These findings suggest that with appropriate patient selection and optimization of surgical techniques, TOFA could be a viable rehabilitation option for diabetic amputees.
Clinical Implications
This work challenges the long-standing hesitancy to offer osseointegration to diabetic patients, emphasizing the importance of individualized care and informed patient autonomy. Further research is needed to refine patient selection criteria and develop strategies to minimize risks.
For more information, access the full manuscript here.
Citation: Hoellwarth JS, Al-Jawazneh S, et al., “Transfemoral Osseointegration for Amputees with Well-Managed Diabetes Mellitus,” JBJS Open Access, 2024; e23.00168. https://doi.org/10.2106/JBJS.OA.23.00168
This study represents an important iterative step forward in broadening access to advanced prosthetic technologies, offering renewed hope for individuals navigating the challenges of limb loss and diabetes.
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