Orthopaedic Nurses Certification Board (ONCB) Metabolic/Inflammatory/Tumors Practice Exam

After reconstruction with allograft, how long should a patient remain non-weight-bearing?

1. 6-12 weeks

2. 14-16 weeks

3. 5-6 months

4. 9-12 months

The correct answer is: 6-12 weeks

In the context of post-operative care following reconstruction with allograft, a non-weight-bearing period is crucial for ensuring proper healing and integration of the graft with the host tissue. The recommended time frame of 6 to 12 weeks aligns with the biological process of graft incorporation, which typically requires a period of reduced mechanical stress on the graft site. During the initial 6 to 12 weeks after the procedure, the allograft undergoes a process of revascularization and integration. Early weight bearing may disrupt this process, leading to potential graft failure or complications. By adhering to the 6 to 12 week guideline, you provide the body sufficient time to initiate healing and allow the graft to secure itself within the surrounding tissues. After this initial period, gradual progression to weight bearing can be implemented based on individual patient responses, rehabilitation protocols, and guidance from the surgical team. In contrast, longer time frames suggested by other options may unnecessarily restrict mobility and may not reflect the standard practices established in clinical guidelines. Hence, 6 to 12 weeks is recognized as a balanced duration that promotes optimal recovery while minimizing risks associated with premature weight bearing.