OPINION
11 Midge Morgan appeals the trial court's entry of summary judgment in favor of In-termountain Health Care, Inc. and others (collectively, IHC). The trial court granted summary judgment on the ground that Morgan could not establish a prima facie case of medical malpractice without a designated medical expert. We affirm.
BACKGROUND
T2 Many of the facts of this case are in dispute. Because this appeal arises from the trial court's grant of summary judgment in favor of IHC, we recite the facts in the light most favorable to Morgan, except as noted. See Neff v. Neff,
T3 This was not Morgan's first medical issue relating to her neck and shoulders. In 1970, she dislocated her shoulder and had a staple inserted and removed. After the car accident in 1998, Morgan began repeatedly seeing Dr. Stephen Warner. In 1999, Dr. Warner noted that Morgan complained of neck pain, headaches, and "bilateral arm pain and numbness." In 2001, Dr. Warner noted that Morgan complained of "right shoulder pain" and numbness in both of her arms; he also noted her previous shoulder surgery. In January 2008, Dr. Warner noted that Morgan suffered from neck pain followed by pain and numbness in her left arm. He also noted that rotating her shoulders "precipitate[d] shoulder and arm pain."
4 In July 2008, IHC designated a list of expert witnesses, including Dr. Bruce Evans. Based on his review of relevant medical ree-ords and deposition testimony, Dr. Evans opined in an affidavit that Morgan's shoulder problems pre-existed her surgery in February 2008. Dr. Evans cited Morgan's dislocated shoulder and subsequent surgery in 1970, her 1998 car accident and subsequent bilateral shoulder pain, and her shoulder pain before the 2003 surgery. Dr. Evans also opined that it was "hard to imagine that both" of Morgan's rotator cuffs could have been torn during the incident following her surgery. He further opined that Morgan's age, medical history, and neck injury accident could have caused degenerative tearing of her rotator cuffs.
T5 Morgan did not designate an expert witness. However, in opposing summary judgment, she relied on the deposition of her treating physician, Dr. Warner. Dr. Warner stated that, before Morgan's surgery, "the pain that she was experiencing seemed to be coming from her neck." However, with rota-tor cuff tears in particular, he testified, "I'm not aware of any article that describes neck problems as a cause of rotator cuff tears. If you could produce some literature, I would like to see it." He further testified that "it's possible" that the tears in Morgan rotator cuffs were caused by the incident with the Nurse. Dr. Warner did not state that it was more likely than not that Morgan's injuries were caused by the incident with the Nurse.
11 6 IHC filed a motion for summary judgment. IHC contended that without a medical expert, Morgan was unable to establish the standard of care, breach of the standard, and proximate cause. In particular, IHC argued that expert testimony was necessary to establish the element of causation in light of Morgan's pre-existing shoulder injuries and shoulder pain. Morgan responded that expert testimony was not necessary to prove her claims. She also argued that genuine issues of material fact precluded summary judgment. The trial court agreed with IHC that expert testimony was required to establish causation: "This Court concludes that lay testimony is not sufficient to explain whether Plaintiff's shoulder injuries were the result of a previous injury and surgery or the act of a nurse." 1 The trial court therefore granted IHC's motion for summary judgment.
ISSUE AND STANDARD OF REVIEW
T7 On appeal, Morgan contends that the trial court erred in entering summary judgment against her based on her lack of an expert witness.
2
Summary judgment is ap
ANALYSIS
¶8 Morgan contends that expert testimony was not required to establish her medical malpractice claim because the cause of her injury was within the common knowledge and experience of a lay juror. To establish medical malpractice, a plaintiff must prove four elements: (1) the standard of care required of health care providers under the circumstances; (2) breach of that standard by the defendant; (3) injury proximately caused by the breach; and (4) damages. See Jensen v. IHC Hospitals, Inc.,
¶9 "There is a general requirement in medical malpractice cases that the element of proximate cause be supported by expert testimony." Bowman v. Kalm,
¶10 This general rule is subject to a limited "common knowledge" exception:
There is a limited "common knowledge" exception to the general requirement, which may exeuse a lack of expert testimony in some cireumstances. This exception applies when the causal link between the negligence and the injury would be clear toa lay juror who has no medical training-i.e., when the causal connection is readily apparent using only "common knowledge."
Id.
4
However, "(ilt is only in the most obvious cases that a plaintiff may be excepted from the requirement of using expert testimony to prove causation." Fox,
¶ 11 Bowman v. Kalm,
¶ 12 Our supreme court held that the common knowledge exception applied, and reversed the summary judgment entered in favor of the psychiatrist. See id. 114. "The causal connection between a decedent made clumsy due to a doctor's negligence, and that decedent's death due to a dresser being pulled down on top of her," the court concluded, "is not one that requires specialized medical knowledge." Id. T18. Nevertheless, the court added that some type of expert testimony on the issue might be helpful at trial, "including, perhaps, testimony on the mechanics of how the dresser could have been made to tip over." Id. 114. As these quotations indicate, the supreme court's analysis focused solely on the question of whether the patient's drug-induced clumsiness caused the dresser to fall on her. The court did not examine the prior links in the causal chain-whether the psychiatrist's negligence caused the overdose and whether the overdose caused the clumsiness.
¶ 13 Another case, Malmstrom v. Olsen,
¶14 Applying the foregoing principles and precedents to the case before us, we conclude that this is not among the most obvious cases where "the causal connection between the breach of the standard of care and the harm suffered is apparent using common knowledge." Bowman,
¶15 Further complicating the mechanism of causation is the fact that Morgan had a history of neck, back, and shoulder issues stemming at least from her 1998 car accident. In 1999 she reported bilateral arm numbness, shoulder pain, neck pain, and headaches. Similar symptoms were present in 2001. By January 2003, her neck pain had increased, followed by numbness radiating down her left arm to her fingers. She had begun losing strength in her left arm. She demonstrated a "reasonably good range of motion" in both shoulders, but did experience "mild pain in the shoulders" with range of motion. After the 2008 surgery and hospital stay, including the incident at issue in this case, Morgan experienced loss of both right and left rotation and marked increase in shoulder pain and a rotator cuff tear.
¶ 16 On this record, determining proximate cause is unlike determining whether the patient in Bowman was killed by the falling dresser. Without expert testimony, a jury of laypersons could not be expected to sift through this medical evidence and make a reliable finding of proximate cause. Indeed, even Morgan's treating physician, with his knowledge of the physiology of rotator cuffs in general and Morgan's rotator cuffs in particular, was unable to do so. When asked whether the condition of Morgan's shoulder could be the result of either an acute shoulder injury on February 26 or 27, 2003, or a “chronic older tear," he responded, “Sure, could be either.” When asked point blank whether he would testify at trial that Morgan's rotator cuff tears were related to the incident with the Nurse, Dr. Warner responded equivocally: "I mean, if somebody grabbed her arms and jerked them up, then could that have caused this? It's possible, yes."
¶ 17 Medical evidence that it is “possible” that a plaintiff's condition was caused by an event is insufficient to survive a motion for directed verdict. See Beard v. K-Mart Corp.,
CONCLUSION
¶ 18 The circumstances surrounding Morgan's injury are sufficiently complicated to require expert medical testimony regarding the element of causation. Because Morgan did not support that element with expert
¶ 19 WE CONCUR: JAMES Z. DAVIS, Presiding Judge and CAROLYN B. McHUGH, Associate Presiding Judge.
Notes
. The court did not address whether expert testimony was required to establish the standard of care and the breach of that standard.
. On appeal, both parties address the elements of standard of care, breach, and proximate cause. However, the trial court's ruling was limited to proximate cause. We likewise limit our analysis to that element.
. Morgan styled one of her claims "negligence" rather than "medical malpractice" and argues that this distinction affects whether expert medical testimony is necessary to prove proximate cause. We do not believe it does. The relevant question is whether a lay juror could, without the assistance of expert medical testimony, sort out the evidence of causation, not whether the claim is styled "medical malpractice." See Fox v. Brigham Young Univ.,
. Res ipsa loquitur represents "a separate ... exception to the general requirement for expert testimony in medical malpractice cases." Bowman v. Kalm,
. "The rotator cuff is a network of four muscles that come together as tendons to form a covering around the head of the humerus. The rotator cuff attaches the humerus to the shoulder blade and helps to lift and rotate your arm." American Academy of Orthopaedic Surgeons, Rotator Cuff Tears, http://orthoinfo.aaos.org/topic.cfm? topic=a 00064 (last visited July 1, 2011).
