Which of the Following Is a True Statement About MP

Which of the following is a true statement about MP arthroplasty and postoperative management of the fingers?

A) Repair of ruptured extrinsic finger flexor tendons often is coupled with MP joint replacement arthroplasty for the patient with RA and chronic tenosynovitis.
B) After MP arthroplasty and removal of the postoperative compression dressing, a dynamic orthosis with an outrigger is worn to maintain the MP joints in full extension when the fingers are relaxed but allow active MP flexion within a limited range and unrestricted interphalangeal (IP) motions.
C) If a patient has an ulnar drift deformity of the fingers, use of a dynamic orthosis is contraindicated postoperatively.
D) Use of a static orthosis has been shown to be an ineffective alternative to a dynamic orthosis for improving ROM and function after MP arthroplasty.

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