Raymond J Walls

Dr. Raymond J Walls


Research Focus & Metrics

Academic Career Length

18Years (2009-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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23 September 2022 in Knee Surgery, Sports Traumatology, Arthroscopy
Verified
Journal Article
Closed access
PDF file
JBJames J. Butler
James J. Butler
MAMohammad T. Azam
Mohammad T. Azam
MWMatthew B. Weiss
Matthew B. Weiss
JKJohn G. Kennedy
John G. Kennedy
RWRaymond J Walls
Raymond J Walls

2 June 2023 in Foot & Ankle International
Verified
Journal Article
Closed access
MAMohammad T. Azam
Mohammad T. Azam
KYKristin Yu
Kristin Yu
JBJames Butler
James Butler
HDHuong Do
Huong Do
SEScott J. Ellis
Scott J. Ellis
RWRaymond J Walls
Raymond J Walls
Background: The purpose of this study was to validate the Foot and Ankle Outcome Score (FAOS) for osteochondral lesions of the talus (OLTs). We hypothesize that the FAOS will meet all 4 psychometric criteria for validity in this patient population. Methods: From 2008 to 2014, a total of 208 patients with OLTs were included in the construct validity portion of the study. All patients completed FAOS and 12-Item Short-Form Health Survey (SF-12) scores. Twenty additional patients were prospectively recruited and were asked to complete questionnaires to determine the relevance of each of the FAOS questions as it related to their OLT. Forty-four patients completed the FAOS 1 month after the first FAOS to assess reliability via Spearman correlation coefficient. Responsiveness of the FAOS was assessed with 54 patients who had both preoperative and postoperative FAOS scores via Student paired t test with significance determined as P < .05. In total, 229 unique patients were included in this study. Results: Statistically significant associations were found between all FAOS and SF-12 subscales ( P < .01). The FAOS symptoms subscale demonstrated the lowest correlation with the SF-12 physical health domains. No floor or ceiling effects were identified. Weak correlations were calculated between the 5 FAOS subscales and the SF-12 mental component summary score. All FAOS domains met the threshold for acceptable content validity (score > 2.0). All FAOS subscales demonstrated acceptable test-retest reliability, with ICC values ranging from 0.81 (ADL) to 0.92 (Pain). Conclusion: This study demonstrates the acceptable yet moderate construct and content validity, reliability, and responsiveness of the FAOS for patients with OLTs of the ankle joint. We endorse the use of the FAOS in evaluating ankle OLTs in both the research and clinical setting and consider it a useful patient-reported, self-administered instrument following surgical intervention. Level of Evidence: Level IV, retrospective case study.

18 May 2023 in World Journal of Orthopedics
Verified
Journal Article
Open access
HUHugo A Ubillus
Hugo A Ubillus
ASAlan P Samsonov
Alan P Samsonov
MAMohammad T Azam
Mohammad T Azam
MFMegan P Forney
Megan P Forney
TMThelma R Jimenez Mosquea
Thelma R Jimenez Mosquea
RWRaymond J Walls
Raymond J Walls
Implications of obesity in patients with foot and ankle pathology

1 January 2009 in Acta Orthopaedica
Verified
Journal Article
Open access
SBStephen A Brennan
Stephen A Brennan
RWRaymond J Walls
Raymond J Walls
ESElizabeth Smyth
Elizabeth Smyth
TMTalal Al Mulla
Talal Al Mulla
JOJohn M O'BYrne
John M O'BYrne
Fomites are increasingly being recognised as a source of hospital-acquired infection. We have therefore assessed tourniquets and exsanguinators for the presence of bacterial pathogens in 1 elective and 2 trauma orthopedic hospitals. Swabs were taken prior to and after decontaminating these devices with 1 of 3 different cleaning modalities. These were then assessed for colony counts and organisms identified. Bacteria commonly implicated in surgical site infections such as coagulase-negative staphylococci, Staphylococcus aureus and Proteus spp. were prevalent. We also found a resistant strain of Acinetobacter and Candida. Exsanguinators were the most heavily contaminated devices, and colony counts in the trauma hospitals were up to 400% higher than in the elective hospital. Alcohol- and non-alcohol-based sterile wipes were both highly effective in decontaminating the devices. Infectious organisms reside on the tourniquets and exsanguinators presently used in the orthopedic theater. These fomites may possibly be a source of surgical site infection. We have demonstrated a simple and effective means of decontaminating these devices between cases.

28 March 2024 in Foot & Ankle International
Verified
Journal Article
Closed access
MKMatthew T. Kingery
Matthew T. Kingery
MKManasa L. Kadiyala
Manasa L. Kadiyala
RWRaymond J Walls
Raymond J Walls
SKSanjit R. Konda
Sanjit R. Konda
AGAbhishek Ganta
Abhishek Ganta
KEKenneth A. Egol
Kenneth A. Egol
Background: Significant heterogeneity in the classification and treatment of zone 3 proximal fifth metatarsal base fractures (“true Jones fractures”) exists. This study compared time to clinical and radiographic healing between patients treated operatively and nonoperatively. We hypothesized that patients treated nonoperatively may demonstrate a greater time to clinical healing. Methods: This was a retrospective cohort study of patients presenting to a large, urban, academic medical center with “Jones” fractures between December 2012 and April 2022. Jones fractures were defined as fifth metatarsal base fractures occurring in the proximal metadiaphyseal region, distal to the articulation of the fourth and fifth metatarsals on the oblique radiographic view. Clinical healing was the time point at which the patient had returned to their baseline ambulatory status with no tenderness to palpation. Radiographic healing was the presence of bridging callus across at least 3 cortices. Results: A total of 2450 patients presented with fifth metatarsal fractures, and 166 fractures (6.8%) were true Jones fractures. Among patients with Jones fractures, 120 patients with 121 Jones fractures followed up at our institution and were included in the analysis (mean age 46.5 ± 18.5 years). Ninety-nine fractures (81.8%) were treated nonoperatively and 22 fractures (18.2%) operatively. There were no differences between nonoperative and operative groups in time to clinical healing (12.7 ± 7.1 vs 12.8 ± 4.8 weeks, P = .931) or radiographic healing (13.2 ± 8.1 vs 11.7 ± 5.9 weeks, P = .331). Overall healing rate was 96% for the nonoperative group compared with 96.2% for the operative group. Conclusion: In this study, nonoperative and operative treatment of true Jones fractures were associated with equivalent clinical and radiographic healing. The rate of delayed union in true Jones fractures was lower than previously described, and there was no difference in delayed union rate between nonoperative and operative management. Level of Evidence: Level III, retrospective cohort study.

5 January 2025 in Foot and Ankle Surgery
Verified
Journal Article
Closed access
NMNathaniel P. Mercer
Nathaniel P. Mercer
BLBradley A Lezak
Bradley A Lezak
DHDavis Hedbany
Davis Hedbany
JBJames J. Butler
James J. Butler
SKSebastian Krebsbach
Sebastian Krebsbach
JKJohn G. Kennedy
John G. Kennedy