Final answer:
The axillary nerve is at risk with suture repair of the posteroinferior shoulder labrum. Surgeons need to be cautious to avoid damaging the nerve, as it can lead to shoulder weakness and limited mobility. Rehabilitation and physical therapy may be necessary for recovery.
Step-by-step explanation:
The nerve at risk with suture repair of the posteroinferior shoulder labrum is the axillary nerve. The axillary nerve is a branch of the brachial plexus and innervates the deltoid muscle. It runs in close proximity to the posteroinferior shoulder labrum and can be damaged during surgical procedures in that area.
When performing a suture repair of the posteroinferior shoulder labrum, it is crucial for the surgeon to be aware of the anatomical location of the axillary nerve and take appropriate precautions to protect it. The nerve can be identified through careful dissection and visualization of the surgical field. Additionally, nerve monitoring techniques can also be employed to minimize the risk of nerve injury during the procedure.
If the axillary nerve is damaged during surgery, it can lead to weakness or loss of function in the deltoid muscle, resulting in shoulder weakness and limited mobility. Rehabilitation and physical therapy may be necessary to aid in the recovery and restoration of shoulder function.