Table Of ContentDavid Ip
Casebook of Orthopedic Rehabilitation
David Ip
Casebook  
of Orthopedic  
Rehabilitation
Including Virtual Reality
With 74 Figures and 1 Table
123
Dr. David Ip
MBBS (HKU), FRCS (Ed) Orth, FHKCOS,
FHKAM (Orthopedic Surg), FIBA (UK), FABI (USA)
Deputy Governor,  
American Biographical Institute Research Association (USA)
Hon Director General (Asia)  
of International Biographical Association of Cambridge (UK)
ISBN 978-3-540-74426-9     e-ISBN 978-3-540-74427-6
DOI 10.1007/978-3-540-74427-6
Library of Congress Control Number: 2007933703
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About the Author
Dr. David Ip is a fellow of various professional organizations, including 
the Royal College of Surgeons and the Hong Kong College of Orthope-
dic Surgeons, and is a member of the American Academy of Orthopedic 
Surgeons  and  the  American  Association  of  Academic  Physiatrists, 
among many others, such as the International Association for the Study 
of Pain and various Gait Analysis societies. His biography is included in 
Marquis Who’s Who in Science & Engineering, Who’s Who in Medicine 
and Healthcare, Sterling’s Who’s Who in NY, and the International Who’s 
Who Historical Society. In his capacity as Director General (Asia) of the 
International Biographical Association of the UK and as Clinical Gov-
ernor of the American Biographical Institute he has contributed signifi-
cantly to peer-reviewed journal articles and has written several books on 
orthopedics, which have received positive reviews from the Royal Col-
lege of Surgeons and the Journal of Bone and Joint Surgery. He is also the 
reviewer of selected orthopedic journals published in Europe, and holds 
honorary consultancy positions for various companies like the Lehrman 
Gerson group, Brand’s Institute, Medacorp, among many others.
Preface
As the name implies, this “casebook” contains a series of clinical cases on 
various topics in orthopedic rehabilitation that the author encountered 
over his 23 years of practice ranging from the extremely common con-
ditions like knee arthritis, to newer technologies evolved in the recent 
years including the use of smart materials in orthopedics, hypergravity 
stimulation therapy, and virtual reality.
Many of us must have encountered difficult real life hurdles to re-
habilitation in real clinical practice in which patients have difficulty in 
coming back for rehabilitation either because they live very far away, 
or they do not really have adequate time, or they simply only agree for 
home-based rehabilitation for various reasons. In these case scenarios, 
no matter how good a “protocol” one has on hand, it will be difficult to 
achieve the expected result. When the author was still young, he made 
the common mistake of accepting lesser outcomes from these patients 
saying to myself that it is a question of compliance. However, with large 
strides in computer engineering, even rural district patients can have 
acceptable rehabilitation as long as they have a telephone line and the 
right computer hardware and software and input-output devices to ef-
fect tele-rehabilitation via the aid of virtual reality rather than just rely-
ing on video conferencing alone. 
Although this book is a close companion of its fellow, “Orthopedic 
Rehabilitation, Assessment, and Enablement” which is very well received 
in many parts of the world, it can however be used alone as all the clini-
cal cases stand alone and are self-contained. Each case scenario is based 
on real clinical situation (except the one on space travel*) seen by the 
author during his clinical practice or during his visits to overseas cen-
ters although the names and some fine details of patients were changed
VIII Preface
to protect their privacy. Finally, a wide readership is expected of this 
book including primary care physicians, fellow orthopedic surgeons, 
physiatrists, therapists, orthopedic nurses and senior medical students. 
Happy Reading!
David Ip
Hong Kong, October 2007
*  To enhance protection of privacy of SARS patients, the MRI Knee of Case number 28 was se-
lected from a Non-SARS patient but with extremely similar pattern of involvement as the original 
patient
Contents
Section I
Case 1   New Dual-energy X-ray Absorptiometry Machines  
(iDXA) and Vertebral Fracture Assessment (VFA)   .......      3
Case 2   Hyper-gravity Stimulation Therapy   .....................    11
Case 3   Lady Having Difficulty in Controlling  
the Computer Mouse   ..................................    17
Case 4   Whiplash-associated Neck Disabilities   ..................    21
Case 5   Sizable Cartilage Defect in a Professional Footballer    ....    31
Case 6   Functional Knee Complaints 
in a Child with Cerebral Palsy  ..........................    37
Case 7   Hamstrings Injuries in a Professional Sprinter   ..........    41
Case 8   Was it Simply Tachycardia or Something More Sinister?        49
Case 9   A Lady with Intractable Heel Pain   ......................    53
Case 10   Hip Swelling after Combined TBI and SCI   ..............    59
Case 11   Consultation for a Third Opinion on Bone Health   .......    67
Case 12   Was It Really Another Case of “Tennis Elbow”?   .........    71
Case 13   A Patient Requesting an “Oxford Uni” for his knee OA   ..    75
Case 14   Bisphosphonates and Peri-prosthetic Osteolysis   .........    79
Case 15   A Young Engineer with Disabling Sciatic Pain  ...........    85
Case 16   The “Wonder Drug” Glucosamine   ......................    93
Case 17   Hyaluronan for Knee OA, Facts Vs. Myths   ..............    99
Case 18   High Heels Woes   ......................................   103
Case 19   Silent Bone Loss and Vitamin D Insufficiency   ...........   111
Case 20   A Professor Suffering from OA Knee Pain   ..............   119
Case 21   New Physical Sign in Carpal Tunnel Syndrome  ..........   129
Case 22   Kinesiophobia   ........................................   133
 Contents
Case 23   Breakthrough Fracture While on Bisphosphonates   ......   139
Case 24   Can Back Pain Be Predicted?   ...........................   149
Case 25   Enthusiasm for “Non-fusion Technology”  
for Discogenic Back Pain   ..............................   153
Case 26   Extra Busy Banker Troubled by Subacute Back Pain, 
Yet No Time for Physiotherapy   .........................   163
Case 27   Metal-on-Metal Hip Surface Replacement   ..............   171
Case 28   A Young Lady with AVN after SARS   ....................   177
Case 29   An Athlete Going for Anterior Cruciate Ligament 
Reconstruction with Little Time for Rehabilitation   ......   183
Case 30   The Office Lady with Neck, Shoulder, Arm, and Back Pain     191
Case 31   Bone Health and Space Travel   ..........................   197
Case 32   Crouch Gait   ..........................................   201
Case 33   Non-healing Diabetes Mellitus Heel Ulcer   ..............   209
Case 34   Cervical Disc Replacement   ............................   215
Case 35   Intractable Lateral Epicondylitis  ........................   221
Case 36   Chronic LBP in a Laborer Whose Job  
Requires Repeated Lifting   .............................   229
Case 37   Stiffness after Flexor Tendon Repair   ....................   237
Case 38   Postpartum Sacroiliac Joint Pain   .......................   243
Case 39   Use of Smart Materials in Orthopedics   .................   249
Section II
General Introduction   ...........................................   257
Uses of the Computer in Orthopedics   ............................   258
Emerging Importance of Data Storage and Retrieval   ..............   260
Why Develop Virtual Reality?   ...................................   260
Summarizing the Four Main Advantages of Virtual Reality   ........   261
Key Components of a Virtual Reality Platform   ....................   262
Evolution   .......................................................   262
Forms of Virtual Reality   .........................................   262
Modifications to Suit Training in Surgery and Rehabilitation: 
Concept of Mixed or Augmented Reality   ......................   263
Contents I
Uses of Virtual Reality in Orthopedic Surgery and Rehabilitation   ..   263
Advances in Hardware   ..........................................   264
Advances in Software   ...........................................   265
The Process of Pipeline Synchronization   ..........................   266
Advances in Input-output Devices   ...............................   266
Improving Visual Effects and Depth Perception   ...............   266
Quick Scanning of 3D Objects Subsequently  
Used in the Virtual World   ................................   267
Virtual 3D Sound Effects Vs. Stereo Sound Effects   .............   268
Importance of the Use of Haptic and Force Feedbacks 
in Orthopedic Rehabilitation   .............................   268
Other Modalities Besides Vision, Hearing, and Force Feedbacks     271
Way Finding in Virtual Environments   ............................   271
Different Types of Trackers   ......................................   271
Real Life Applications   ..........................................   275
Preoperative Training of Surgeons   ...............................   275
Preoperative Planning   ...........................................   275
Intraoperative Virtual Model   ....................................   277
Intra- or Perioperative Stability/Impingement Testing  
in Other Fields of Orthopedic Surgery   ........................   277
An Intraoperative Aid to the Surgeon Combined with Robotics   ....   279
Use of Virtual Reality in Postoperative Orthopedic Rehabilitation   ..   279
Use of Virtual Reality in Non-operative Orthopedic Rehabilitation       281
Example 1: Pain Management   ................................   281
Practical Case Illustration (Case 40):  
Virtual Reality in Burns Care for a Child   ..................   283
Example 2: Ankle Rehabilitation   .............................   286
Example 3: Training the Patient in the Use  
of Assistive Technology   ..................................   288
Example 4: Improving Quality of Life Through the Use of Music     290
Tele-rehabilitation   ..............................................   293
Literature Support of the Use of Tele-rehabilitation 
with a VR Platform in Hand Rehabilitation   ................   294