Kaiser-Bauer v. Mullan

609 N.W.2d 905, 2000 Minn. App. LEXIS 423, 2000 WL 519226
CourtCourt of Appeals of Minnesota
DecidedMay 2, 2000
DocketC3-99-1396
StatusPublished
Cited by1 cases

This text of 609 N.W.2d 905 (Kaiser-Bauer v. Mullan) is published on Counsel Stack Legal Research, covering Court of Appeals of Minnesota primary law. Counsel Stack provides free access to over 12 million legal documents including statutes, case law, regulations, and constitutions.

Bluebook
Kaiser-Bauer v. Mullan, 609 N.W.2d 905, 2000 Minn. App. LEXIS 423, 2000 WL 519226 (Mich. Ct. App. 2000).

Opinion

OPINION

LANSING, Judge

Terry Kaiser-Bauer brought a medical-malpractice action against John Mullan, alleging negligence in the performance of carpal-tunnel surgery and the administration of post-operative care. The jury returned a special verdict in Kaiser-Bauer’s favor and awarded her approximately $132,000 in damages. Because the trial judge improperly submitted two of Kaiser-Bauer’s three negligence theories to the jury and the evidence does not conclusively establish that Kaiser-Bauer is entitled to the verdict on the third theory, we reverse the jury’s verdict and remand for a new trial.

FACTS

In September 1995, Terry Kaiser-Bauer’s neurologist referred her to John Mullan, a neurosurgeon, because of progressively worsening symptoms of numbness, tingling, and muscle fatigue in her right hand. After examining Kaiser-Bauer in October 1995, Mullan concluded that she had developed carpal-tunnel syndrome and recommended surgery.

Carpal-tunnel surgery is performed to decompress the median nerve by dividing the transverse carpal ligament. Injury to the median nerve and its accessory nerves, including the recurrent motor branch, is a recognized risk of surgery. Mullan informed Kaiser-Bauer of the risk before performing the surgery on October 13, 1995.

Mullan saw Kaiser-Bauer in his office three times after the surgery. When he *908 last saw her on January 10, 1996, he had learned from Kaiser-Bauer’s physical therapist’s report that Kaiser-Bauer’s abductor pollicis brevis and opponens pollicis, the muscles that move the thumb, were weak. He had also learned that the weakness in the muscles was impairing Kaiser-Bauer’s coordination and her ability to hold a pen, and that Kaiser-Bauer had complained that her “hand and fingers [did not] bend right.” Mullan examined Kaiser-Bauer, found the hand’s range of motion and pinching strength to be normal, and discharged her from care. His discharge notes indicate that Kaiser-Bauer “appeared to be doing quite well” and there was “no need for [a] follow-up visit.”

In February 1996, several weeks after Kaiser-Bauer last saw Mullan, she noticed that her right palm was flat and gray. On her physical therapist’s recommendation, Kaiser-Bauer consulted Jeffrey Groner, a neurosurgeon who specialized in the hand.

Groner first saw Kaiser-Bauer in March 1996. He did some neurological testing and determined that, although the hand’s range of motion was normal, there was a problem with the innervation of the hand. Groner saw Kaiser-Bauer again on April 16 and determined that he could not diagnose Kaiser-Bauer’s condition with certainty based on the physical evidence alone. He therefore referred her to Frank Wei for electrodiagnostic testing, including an electromyogram (EMG).

The EMG results indicated that the recurrent motor branch of the median nerve had been cut. Groner speculated that scar tissue had developed around the nerve after it was cut, but could not be sure. He therefore recommended a second opinion, and Kaiser-Bauer contacted Karen Porth, a neurologist. Porth concluded there was some ongoing compression or irritation of the nerve and recommended exploratory surgery to determine the source.

Groner performed the surgery in July 1996. He found the recurrent motor branch of the median nerve encased in significant scar tissue. After removing the scar tissue, Groner saw that the nerve had been sharply cut. When he looked at the nerve closely, he saw scar tissue between the two severed ends. He also saw that one end of the nerve was twice the diameter of the other end. The presence of sear tissue and the difference in the nerve endings’ sizes suggested the injury to the nerve had occurred “some months beforehand.” A test Groner conducted with a nerve stimulator confirmed that the injury was at least 48 to 72 hours old. Based on these observations, Groner concluded Mul-lan had divided the recurrent motor branch during surgery.

In September 1997, Kaiser-Bauer brought this medical-malpractice action, claiming Mullan had negligently injured the recurrent motor branch of the median nerve during surgery. Kaiser-Bauer asserted three liability theories.

a. The Tourniquet Theory

Kaiser-Bauer’s first liability theory was that Mullan departed from the generally accepted standard of care by failing to use a tourniquet to constrict the flow of blood. At trial, Wayne Thompson, an orthopedic surgeon who served as Kaiser-Bauer’s expert, testified that, although the flow of blood can be constricted with vasoconstric-tors and electrocautery, Mullan departed from generally accepted standards by failing to use a tourniquet. Mullan admitted he did not use a tourniquet, but claimed that neurosurgeons are trained to constrict the flow of blood with vasoconstrictors and electrocautery rather than tourniquets. Scott McPherson, a hand-surgery specialist, confirmed Mullan’s testimony and added that the use of a tourniquet during carpal tunnel surgery is a matter of surgical preference. He also stated that he searched the medical literature and found no articles suggesting that the use of vaso-constrictors and electrocautery in carpal-tunnel surgery is inappropriate or that the use of the tourniquet is safer. On the contrary, the medical literature introduced at trial suggested that vasoconstrictors and electrocautery may be used safely in *909 the performance of carpal tunnel surgery and are preferable to the tourniquet. No witness testified that Mullan’s operative field was bloody, and Kaiser-Bauer presented no nontestimonial evidence to support this theory.

b. The Inspection Theory

Kaiser-Bauer’s second liability theory was that Mullan departed from the accepted standard of care by failing to inspect the recurrent motor branch of the median nerve to determine if it had been cut during surgery. Thompson testified that all carpal-tunnel surgeons, regardless of specialty, are required to inspect the recurrent motor branch before concluding the surgery. According to Thompson, the timely realization that the nerve had been cut would have allowed Mullan to repair the nerve promptly and thereby minimize long-term damage.

Mullan admitted he did not inspect the recurrent motor branch. He testified, however, that neurosurgeons are trained not to locate the motor branch unless there is reason to believe it has been injured. McPherson confirmed Mullan’s testimony and added that looking for the motor branch when there is no reason to believe it has been injured was bad practice. Neither Mullan nor McPherson disputed that the timely realization that the nerve had been cut would have minimized the damage resulting from the transection.

c. Muscle-testing Theory

Kaiser-Bauer’s last liability theory was that Mullan departed from the accepted standard of care by failing either to conduct opponens testing during postoperative care or to conduct it properly. Opponens testing involves the clinical assessment of the function of the oppo-nens pollicis, a thumb muscle. According to Thompson, had Mullan properly conducted opponens testing, he would have discovered that Kaiser-Bauer’s abductor pollicis brevis and opponens polli-cis were weak. Muscle weakness would have necessarily suggested nerve damage and resulted in early repair.

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Cite This Page — Counsel Stack

Bluebook (online)
609 N.W.2d 905, 2000 Minn. App. LEXIS 423, 2000 WL 519226, Counsel Stack Legal Research, https://law.counselstack.com/opinion/kaiser-bauer-v-mullan-minnctapp-2000.