Lower Extremity Osseointegration Postoperative Rehabilitation Protocols: A Scoping Review.

Objective: Lower-extremity transcutaneous osseointegration is a rehabilitation alternative to socket-suspended prostheses. The rehabilitation process, philosophies, and routines remain under-described. This review, primarily, identifies commonalities and differences among protocols. Secondarily, strategies are proposed to streamline future research of post-osseointegration surgery rehabilitation.

Methods: Two differently phrased queries of Google Scholar, Pubmed, Embase, and Web of Science were performed. First using either "osseointegration" or "osseointegrated" or "bone anchored prosthesis" AND [last name]. Second, replacing author name with "physical therapy" or "rehabilitation." Six hundred eighty-eight articles were identified describing lower-extremity rehabilitation following osseointegration. Following software-based deduplication, manual abstract and full-text review, article reference evaluation, and use of Google Scholar's "Cited by" feature, 35 studies were fully analyzed. First, a consolidated summary was made of protocols focusing on stages, timing, and other descriptions of postoperative rehabilitation. Subsequently, strengths and limitations of protocols were considered to propose potential strategies to investigate and optimize postoperative rehabilitation.

Results: All articles describe rehabilitation having this same order of goal progression: from surgery to gradual weight bearing and final goal of independent ambulation. The most impactful difference influencing the stated final goal of independent ambulation was whether 1 or 2 surgical stages were performed. No articles reported patient success rate achieving proposed goals and timing, or challenges during rehabilitation. Therefore, the first research suggestion is to investigate actual success rates achieving proposed goals and timing. Second, to further explore rehabilitation of performance deficits, beyond unaided ambulation. Finally, to incorporate technology such as mobility trackers to more objectively understand prosthesis use and mobility.

Conclusion: All lower-extremity osseointegration rehabilitation literature recommends identical goal progression order. No studies evaluate patient challenges or variation. Understanding and addressing such challenges may enhance postoperative rehabilitation.

Impact: This article consolidates published rehabilitation protocols post-osseointegration surgery. Specific analysis and experimentation of the protocols may enhance the uniformity and potential of patient rehabilitation.