On December 6, 2002, this 46 year old claimant injured his right shoulder while attempting to close off a water hydrant. As he pulled forcefully on the wrench, the claimant felt a "pop" and severe pain in his right mid-clavicle with pain, numbness, and tingling radiating into his hands and fingers. The claimant's wife drove him home from work where he rested for the weekend while applying heat and ice to the painful area. The pain worsened however, and he reported his injury when he returned to work.
The claimant went to Unity Corporate Health, and on December 9, 2002, x-rays revealed a fracture of multiple screws holding the stabilization bar of his right shoulder and a united fracture of the mid aspect of the right clavicle. He consulted Dr. Pierron, an orthopedic surgeon, who put the claimant on light duty due to a failure of the internal fixation of his non-union right clavicle. On January 14, 2003, Dr. Pierron performed an open reduction internal fixation with Flexon bone graft to the right clavicle non-union. See Exhibit A. Dr. Pierron ordered physical
Issued by DIVISION OF WORKERS' COMPENSATION
Employee: Donald K. Shelton
Injury No.: 02-157512
therapy. On May 6, 2003, Dr. Pierron recommended applying an Exogen bone stimulator to try
to boost the amount of new bone formation at the interface and that the claimant delay
unrestricted heavy physical labor until he developed better bone. On June 16, 2003, Dr. Pierron
ordered an exercise program with a one to two pound progression per week. On August 4, 2003,
Dr. Pierron found that the claimant had pain when trying to lift more than three pounds due to the
persistent non-union fracture. On August 18, 2003 Dr. Pierron performed a bone marrow and
bone-void filler ignite injection to the right clavicle non-union. On September 22, 2003, the
claimant still had pain lifting over five pounds, popping around the shoulder blade and straining
and pulling on the muscles around the shoulder, and Dr. Pierron ordered additional physical
therapy. On January 12, 2004, x-rays showed persistent non-union, and Dr. Pierron opined that
additional surgical intervention was indicated. On February 16, 2004 Dr. Pierron performed an
open bone grafting with autograft, both cancellous and corticocancellous bone from the right
pelvis. The claimant had additional physical therapy after the surgical procedure.
On August 2, 2004, Dr. Pierron examined the claimant and found shoulder instability and
persistent pain. The claimant reported shooting pains and numbness in his arm and Dr. Pierron
opined that further surgery was only indicated in the event of failure of the plate and/or screws.
On August 10, 2004, an EMG revealed bilateral carpal tunnel syndrome with loss of the sensory
nerve function with the maintenance of the other nerves involved in the brachial plexus. On
August 30, 2004, Dr. Pierron examined the claimant and found that the claimant had a 30%
weaker shoulder in the right compared to the left. He had significant pain and limitation of
motion and radiographic incomplete healing of the clavicle non-union and needed to continue
with physical therapy. On September 27, 2004, the claimant had increased swelling around the
right clavicle and shoulder and residual weakness of the right scapula. X-rays revealed loosening
around two of the three lateral screws without failure of the plates. The claimant continued the
ultrasound stimulation and physical therapy. On November 29, 2004, Dr. Pierron examined the
claimant and found that the claimant had more pain with increased shoulder activity, radiating
pain around the shoulder itself, and clicking behind the shoulder blade. There was snapping of
the scapula not directly related to his clavicle other than the residual weakness and change in the
muscular balance of the shoulder after prolonged limitation of use of the right upper extremity.
On November 29, 2004 Dr. Pierron opined that no further surgical intervention was indicated,
because the claimant had not had complete failure of the hardware. Dr. Pierron opined that the
claimant had reached maximum medical improvement “to date.”
On March 7, 2005, Dr. Pierron examined the claimant and found loosening and continued
motion of the screws. The claimant could not return to physical labor activities that require
forceful use of the right arm. On July 25, 2005, the claimant reported increasing pain during a
long drive. On March 20, 2006, Dr. Pierron indicated that if the x-rays showed complete failure
or fracture of the screws, then the claimant would need surgery for the revision of the internal
fixation hardware. On April 12, 2006, the claimant had a nerve conduction study of the right arm
which showed chronic degeneration in the C6-7 and 8 innervated muscles consistent with mild,
early median neuropathy at the wrist/carpal tunnel and suggestive of chronic mild middle cervical
radiculopathy. On May 3, 2006, Dr. Pierron took x-rays that revealed a failure of the plate with
distal screws pulling up allowing the plate to disassociate from the distal clavicle. Dr. Pierron, at
that time, suggested repeat surgery. Dr. Pierron also indicated that the chronic nerve
degeneration from the neck was probably causing numbness. The claimant did not want to
consider cervical surgery at that time. On May 23, 2006, Dr. Pierron performed a surgical
WC-32-B1 (6-81)
Page 4
Issued by DIVISION OF WORKERS' COMPENSATION
Employee: Donald K. Shelton
Injury No.: 02-157512
procedure removing the hardware, reducing the fractured clavicle allograft intercalary bone graft,
replating the clavicle, and applying a Grafton Flex demineralized bone matrix. At this point, the
claimant was released at maximum medical improvement and temporary total disability benefits
payments were stopped. Dr. Pierron followed the claimant until August 21, 2006, and turned the
claimant over to Dr. Garcia.
On November 29, 2006, x-rays revealed no evidence of healing of the clavicle fracture.
On December 19, 2006, a CT revealed an incomplete union of about 10% to 20% of the anterior
portion of the clavicle. Dr. Garcia examined the claimant on December 29, 2006, for chronic
pain in the right clavicle area. On April 25, 2007, Dr. Garcia found tenderness to palpation
around the incision and significant pain around the clavicle. X-rays revealed that some of the
screws were starting to back out of the plate, and the claimant still had a non-union fracture. On
April 25, 2007, Dr. Garcia referred the claimant to Dr. Watson. See Exhibit A.
On May 31, 2007, Dr. Watson examined the claimant and diagnosed a chronic non-union
of the right clavicle fracture. X-rays revealed that three screws were broken and that his
diagnosis was the same as before, a non-united clavicular fracture with hardware failure.
On July 11, 2007, Dr. Watson performed a complex hardware removal with irrigation and
debridement of the infected right clavicular non-union with application of five antibiotic beads.
On July 26, 2007, x-rays revealed that the clavicular fracture was unchanged. On August 30,
2007, Dr. Watson found an infected hardware status post right clavicular non-union and that
there was no change from the previous x-rays. On November 1, 2007, Dr. Watson examined the
claimant, and the x-rays demonstrated an increase in the space between the two distal and
proximal clavicular segments. There was some weakness of the biceps and triceps and
paresthesia in the ulnar nerve distribution suggestive of a traction-type phenomenon. He
recommended physical therapy.
Pre-existing Conditions
Pre-existing Right Shoulder Condition
Dr. Volarich reviewed and summarized voluminous medical records regarding the
claimant's pre-existing right shoulder condition that were not submitted into evidence. His
findings were not challenged or the source of any objection by any party. On February 6, 1995,
Dr. Mishkin examined the claimant for pain and discomfort in his neck. The claimant had
slipped and fallen on ice in the parking lot at his place of employment on January 24, 1995. Dr.
Mishkin diagnosed mild cervical myositis.
On April 18, 1992, the claimant was involved in an automobile accident and right
shoulder x-rays revealed a fracture of the middle portion of the shaft of the clavicle, with
moderate superior displacement of the lateral fragment; small intermediate fragments at the
fracture site, with the fragments in satisfactory position. No dislocation of the lateral end of the
clavicle, or head of the humerus; fracture, right clavicle. The claimant was placed in a clavicle
strap. Dr. Johnston treated the claimant's mid clavicle fracture from April 20, 1992, through
October 26, 1992. On August 27, 1992, Dr. Johnston excised a fragment from the claimant's
right clavicle. On October 26, 1992, x-rays revealed no fracture at that area and the claimant was
to return on an as needed basis. On May 23, 2000, Dr. Matthews examined the claimant for
WC-32-R1 (6-81)
Page 5
Increasing arm and shoulder pain and occasional numbness in his hands. See Exhibit L. X-rays confirmed a hypertrophic area of the clavicle non-union site. On May 23, 2000, a CT scan revealed a non-union of right clavicle fracture. On July 24, 2000, Dr. Matthews performed an open reduction internal fixation of right clavicle fracture for non-union with allograft fibular strut graft. On October 26, 2000, x-rays confirmed more consolidation of his fracture. On February 5, 2001, evaluation showed increasing swelling around the mid-clavicle area indicative of a breakdown of a non-union fixation. On February 7, 2001 Dr. Matthews opined that the claimant could return to work on limited duty. On February 23, 2001, Dr. Pierron examined the claimant regarding plate removal. See Exhibit 3. On March 26, 2001 Dr. Pierron performed an open reduction and internal fixation of the right clavicle fracture with bone grafting at St. Louis University Hospital. On April 6, 2001, and May 4, 2001, Dr. Pierron opined that there was excellent alignment and that the plate was in place; there was no evidence of hardware failure. On June 15, 2001, Dr. Pierron allowed the claimant to return to work on light duty. On July 31, 2001, Dr. Pierron found excellent alignment and no failure of hardware with bone that seemed to be filling in without difficulty. Dr. Pierron opined it would be safe to give the claimant a release to return to work as long as he can be restricted from lifting over ten pounds with his right arm. See Exhibit L.