Primary Anterolateral Ligament Rupture in Patients Requiring Revision Anterior Cruciate Ligament Reconstruction: A Retrospective Case-Control Magnetic Resonance Imaging Review

PURPOSE

To compare the initial rate of anterolateral ligament (ALL) injury at the time of anterior cruciate ligament (ACL) rupture in patients who subsequently experienced ACL reconstruction graft failure versus patients who did not experience subsequent ACL reconstruction graft failure.

METHODS

Our institution's electronic medical record database was queried for patients who underwent primary ACL reconstruction with subsequent ACL graft rupture. Exclusion criteria included unavailable MRI scan, chronic ACL injury, multi-ligamentous injury, previous ACL reconstruction, and age younger than 13 or older than 50 years. Each patient was paired with an age-, gender-, and graft-matched control who underwent ACL reconstruction without subsequent graft rupture. Each patient was diagnosed with an intact, partially injured, or fully ruptured ALL on initial MRI. The location of ALL injury was also noted. The incidence and location of ALL rupture were compared using χ² analysis.

RESULTS

1,967 patients underwent primary ACL reconstruction. 128 patients experienced ACL graft rupture, and 55 patients (43%) had MRI scans available for review. 39 of these patients fulfilled inclusion criteria and were matched with a control patient. In the revision group, the ALL was diagnosed as intact, partially torn, and completely torn in 17, 14, and 8 patients, respectively, compared to 18, 13, and 8 patients, respectively in the control group. No difference was found in frequency of ALL rupture (Pearson χ² = 0.066; P = .968) or rupture location (Pearson χ² = 4.00, P = 0.135).

CONCLUSIONS

The incidence of initial ALL injury as documented on MRI was not different in patients who experienced subsequent ACL graft rupture compared with patients who did not experience ACL graft rupture after primary ACL reconstruction. The ALL was more commonly injured on the tibial side in patients with ACL graft rupture and femoral-sided lesions were more common in control patients.

LEVEL OF EVIDENCE

Level III, prognostic case-control study.

A Comparison of Cervical Spine Motion After Immobilization With a Traditional Spine Board and Full-Body Vacuum-Mattress Splint

Background:

The National Athletic Trainers’ Association (NATA) advocates for cervical spine immobilization on a rigid board or vacuum splint and for removal of athletic equipment before transfer to an emergency medical facility.

Purpose:

To (1) compare triplanar cervical spine motion using motion capture between a traditional rigid spine board and a full-body vacuum splint in equipped and unequipped athletes, (2) assess cervical spine motion during the removal of a football helmet and shoulder pads, and (3) evaluate the effect of body mass on cervical spine motion.

Study Design:

Controlled laboratory study.

Methods:

Twenty healthy male participants volunteered for this study to examine the influence of immobilization type and presence of equipment on triplanar angular cervical spine motion. Three-dimensional cervical spine kinematics was measured using an electromagnetic motion analysis system. Independent variables included testing condition (static lift and hold, 30° tilt, transfer, equipment removal), immobilization type (rigid, vacuum-mattress), and equipment (on, off). Peak sagittal-, frontal-, and transverse-plane angular motions were the primary outcome measures of interest.

Results:

Subjective ratings of comfort and security did not differ between immobilization types (P > .05). Motion between the rigid board and vacuum splint did not differ by more than 2° under any testing condition, either with or without equipment. In removing equipment, the mean peak motion ranged from 12.5° to 14.0° for the rigid spine board and from 11.4° to 15.4° for the vacuum-mattress splint, and more transverse-plane motion occurred when using the vacuum-mattress splint compared with the rigid spine board (mean difference, 0.14 deg/s [95% CI, 0.05-0.23 deg/s]; P = .002). In patients weighing more than 250 lb, the rigid board provided less motion in the frontal plane (P = .027) and sagittal plane (P = .030) during the tilt condition and transfer condition, respectively.

Conclusion:

The current study confirms similar motion in the vacuum-mattress splint compared with the rigid backboard in varying sized equipped or nonequipped athletes. Cervical spine motion occurs when removing a football helmet and shoulder pads, at an unknown risk to the injured athlete. In athletes who weighed more than 250 lb, immobilization with the rigid board helped to reduce cervical spine motion.

Clinical Relevance:

Athletic trainers and team physicians should consider immobilization of athletes who weigh more than 250 lb with a rigid board.

Factors impacting Press Ganey patient satisfaction scores in orthopedic surgery spine clinic

BACKGROUND CONTEXT

Patient satisfaction is and will continue to become an important metric in the American health care system. To our knowledge, there is no current literature exploring the factors that impact patient satisfaction in outpatient orthopedic spine surgery clinic.

PURPOSE

The purpose of this study was to determine which factors impact patient satisfaction in an outpatient orthopedic spine clinic.

STUDY DESIGN

This is a case series, level of evidence IV.

PATIENT SAMPLE

We reviewed the Press Ganey Associates database to identify patients seen in an orthopedic spine surgery clinic from 2013 to 2015.

OUTCOME MEASURES

Outcome measures were self-reported, which included visual analog pain scores and Press Ganey satisfaction scores.

METHODS

Retrospective computerized Press Ganey survey review was performed to identify patient demographics and patient visit characteristics. Bivariate analysis was used by splitting the patient response into the following: 0-3 (not satisfied), 4-7 (somewhat satisfied), and 8-11 (satisfied). Kruskal-Wallis test and Fisher exact test were used to evaluate the significance of patient and visit characteristics. Any variable that had a p-value less than .20 was subjected to the Poisson regression model.

RESULTS

Overall, 353 patients were seen in an orthopedic spine surgery clinic and completed the Press Ganey survey. Three hundred and thirty-two patients were satisfied with their visit. Patients who were satisfied had a mean pain score of 4.02; patients who were somewhat satisfied or not satisfied had a pain score of 7 and 6, respectively (p=.009). Of 21 patients who felt the provider did not spend enough time with him or her, five (24%) patients were not satisfied with their visit. Poisson regression model confirmed significance of pain score and "provider time spent with you." Most impactful was "provider spent enough time with you" where a "yes, definitely" answer predicted a nearly 60% increase in Press Ganey overall satisfaction score.

CONCLUSIONS

Two patient variables that have a statistical significance on Press Ganey patient satisfaction scores were pain score and "provider spent enough time with you."

Avascular Necrosis of Trochlea After Supracondylar Humerus Fractures in Children

Avascular necrosis (AVN) is a rare but important complication after supracondylar humerus fractures. Posttraumatic humerus deformity was first reported in 1948 and sporadically thereafter. AVN deformity has been classified as type A (AVN of the lateral ossification center) and type B (AVN of the entire medial crista and a metaphyseal portion). In this article, we present 5 cases of AVN after supracondylar humerus fracture, discuss the importance of late clinical findings, and postulate a mechanism of AVN in nondisplaced fractures. Five cases of AVN after supracondylar humerus fracture were reviewed from the Children's of Alabama database. Four of the 5 patients were female. Four patients sustained a Gartland type III fracture, and 1 patient sustained a nondisplaced Gartland type I fracture. Age at time of injury ranged from 5 years to 10 years. All patients had an asymptomatic clinical period after treatment and re-presented 6 months to 7 years later with elbow pain or loss of motion. All patients were treated symptomatically. AVN of the trochlea has a late clinical presentation. The cause of this complication is interruption of the trochlea blood supply. In displaced fractures, the medial and/or lateral vessels are injured, leading to type A or type B deformity. In nondisplaced fractures, the lateral vessels are interrupted by tamponade because of encased fracture hematoma; this presents as a type A deformity. Both type A and type B deformities can be clinically significant. AVN of the trochlea should be considered in patients with late presentation of pain or loss of motion after treatment of supracondylar humerus fractures.