Press-fit bone-anchored prosthesis surgery
For lower limb amputees, the socket fit is crucial to allow proper use of the prosthetic. Osseointergration has become more widely known and accepted. In this paper, it is referred to under the title bone-anchored prostheses (BAPs). 2 types are identified: those where a) screw and b) press-fit is used. There is a great deal of speculation as to the advantages of the press-fit BAP, however, the authors have found no other studies which investigate these claims, nor the specific benefits over another socket type. This paper outlines the protocol to be followed in a 5-year study to identify different outcomes for persons with amputation who use such osseointergration.
Surgery for the press-fit BAPs occurs in two sessions, approximately 2 months apart. In the interim period the individual is unable to use a prosthetic limb. However, one week after the second surgery they may begin rehabilitation. This may continue for 1-3 months.
The aims of the research are:
- To describe the impact on subjective and objective activity and quality of life for users in short and long term, compared to baseline (pre operative);
- To identify baseline factors, which may assist in predicting an individual’s response to the press-fit BAP, thereby aiding potential prescription;
- To identify factors that may help predict level and progression of stump pain over time;
- To identify mechanisms which may assist in modifying back pain over time, for relevant patient groups.
The results are yet to be seen.
See a short video about how prostheses are attached to bone below:
> From: Leijendekkers et al., BMC Musculoskelet Disord 17 (2016) 484. All rights reserved to The Author(s). Click here for the online summary.