Post-Surgery Wound Healing Tracking With MyHealthPal App

The investigators want to explore the use of a smartphone app that allows patients to take photos of their wounds in early stages of healing, so that clinicians can monitor wound-healing remotely with the assistance of an AI program. Participants will choose whether they want to be in the control group or the app group. Participants in the app group will be asked to download an app on their personal smartphone before their surgery. After the procedure, participants will upload a photo of their surgery site as well as answer some questions about its characteristics either on a daily or weekly basis. A healthcare provider and the app's AI algorithm will observe this information to determine the risk of infection. Participants in the control group will not be asked to use the app. Their medical record will be monitored by study staff intermittently to see if they develop infection. This study will take approximately 16 weeks.

Inclusion Criteria: * Adults (18 years old and older). * Ability to understand consent process and questionnaires. Patients with ready access to a smartphone, compatible smart device (operating system 5.0 version, also known as Lollipop, for Android and 13 or later version for iOS), smartphone aptitude, smartphone with sufficient memory space for the relevant app, and willingness to participate in the study as assessed by a questionnaire. * Patients undergoing one of the following surgeries within the Brigham and Women's Pain Management Practice: 1. Spinal cord stimulator implantation 2. Spinal cord stimulator explant 3. Spinal cord stimulator revision 4. Intrathecal pump implantation 5. Intrathecal pump explant 6. Intrathecal pump revision * Ability to attend all standard surgery follow-up appointments at Brigham and Women's Hospital. * Ability to understand and sign written informed consent documents. Exclusion Criteria: * Cognitive or physical impairment that would prevent patient from entering data in MHP. * Any acute or chronic condition that would limit the ability of the patient to participate in the study. * Any patient who is experiencing an ongoing infection prior to undergoing a surgical revision/explant