Keywords:
Anatomy, Computer applications, Bones, CT, Image manipulation / Reconstruction, CT-Quantitative, Computer Applications-3D, CAD, Technical aspects, Arthritides, Outcomes
Authors:
D. Dalili, N. Byrne, Z. Shah, M. J. Bankes, M. George, A. Isaac; London/UK
DOI:
10.1594/essr2017/P-0282
Methods and Materials
Preoperative CT data from 10 patients listed for CRHA were prospectively collected and digitally reconstructed using 3DP software.
All revision cases were discussed amongst three experienced hip-surgeons and a musculoskeletal radiologist,
who were asked to complete a written short questionnaire.
The level of complexity of the cases was ascertained by consensus amongst the surgeons.
Thereafter,
they were presented with the 3D model and asked to repeat the process and complete the questionnaire.
The written questionnaire included:
- Proposed surgery
- Proposed prosthesis and size(s)
- Expected operative time
- Expected recovery time
- Degree of confidence in the details of proposed procedure,
using a visual analogue score (calibrated zero to ten)
The details of surgery,
cost of the prosthesis,
total operative savings,
length of hospital stay and rehabilitation (from the physiotherapists' formal notes) were recorded by our physician associate,
for independent record keeping.
It is worth reiterating that our study was low risk,
as it utilised existing preoperative imaging,
with no added radiation exposure.
All cases were discussed in a multidisciplinary set up and a consensus amongst experienced surgeons was obtained prior to surgery.
The surgeons used standard CTHR implants that they currently use in the Trust.
There were no changes to the anesthetic protocols routinely used.
There were no changes to the rehabilitation protocol initiated and led by our physiotherapists,
who were blinded to the study.